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key for entering into BIOS. •Using the down arrow key navigate to hard drive field. •If hard drive is not detected, shut down the system and reseat hard drive connector. •If hard drive is detected, restart the system and run ePSA, (follow the steps A through E to run ePSA).

Overheating of system cam result is system shutdown or it might even slow down the performance of the system. Isolation Steps Isolation Steps 1: Overheating and Intermittent shut down Overheating and intermittent shut down may be caused when debris or dust clog the fan exhaust port. This is especially notices on systems operating in a dusty environment. •Clean the clogged parts by blowing air directly into the fan exhaust port (either by blowing with mouth or using compressed canned air). •The air must be sent directly into the heat sink vents. This is always on the sides or back of the machine. •Limit the duration of compressed air (short 2-3 second intervals) to avoid excessive spooling (RPM) of the fan •If you cannot get compressed air into the exhaust port, place a vacuum hose on the intake port to extract the debris from the bottom of the system. Isolation Steps 2:Insufficient Thermal Bonding If the system's thermal solution (heat sink) is disassembled, ensure that all thermal interface material is in place: •Between U and heat sink, ensure thermal grease or a thermal pad is in place. •Between the heat sink and the graphic processor unit (GPU) - Portables only, ensure colored pads are in place. Note: GPU pads are different from U pads and are only supplied on replacement heat sinks. They are spongy and resilient and can be reused. There can be several of these on some systems and they can vary in colors, like green, white or blue. These pads cannot be ordered separately.. Applying Thermal Gel Replacing thermal material for desktops and servers •Dell supplies thermal grease and an alcohol swipe in service kits. •Use the alcohol swipe to clean the old material from the surface of processor and heat sink. You may need to use a plastic scribe to remove hardened thermal material. •Use the syringe to apply thermal grease in a swirl pattern. (As shown in tne picture) Applying Thermal Pads Applying Thermal Pads to U/heat sinks •The thermal pad is located inside the white envelope. A cleaning pad is usually shipped with the thermal pad; however, you can also use isopropyl alcohol and a lint free cloth. •Using a cleaning pad, clean all debris from the surface of heat sink and processor. •Carefully pull the top film liner at a 45-degree angle until it is fully removed.

•Remove second liner also completely. One side of the thermal pad is now completely exposed. •Place the exposed side onto the processor and apply even pressure across the pad. •Remove the remaining two liners and then assemble the heat sink to the processor. Note: The envelope can be easily mistaken for a label and thrown away. Always look carefully for the thermal pad inside the parts package. You must to remove all liners prior to assembly. Some portables use thermal grease instead. Always use what is dispatched. Desktop PSU BIST the external power source or wall socket. the intermediary or connecting devices such as extension cords or surge suppressors. Most mainstream systems now include a power supply with the built in self-test (BIST) feature that drives new troubleshooting steps. Press and hold the test button to run the BIST. The test button and LED are on the side of the unit where the AC plug is located. Check the Built in Self-test (BIST) test button and LEDs on the Power Supply: •If Built in Self-Test fails, remove connectors from Power Supply and other components then rerun test. •If the LED glows, the attached connectors are shorted or the component attached to the connector is shorted. •If the LED does not glow, the Power supply is defective. Power Adapter BIST Isolation Steps 1: ing Power Source & Power Adapter the power source with another electrical device. that the power adapter works after unplugging it from the computer but keeping it plugged into the outlet. Most power adapters have a simple diagnostic LED (Off, Green or Blue) for troubleshooting: •Green and Blue color indicates adapter is working fine. •If LED is off, reseat the connectors on the power adapter and the system and swap power cord with known good power adapter if possible. Isolation Steps 2: Reseating the Connection If reseating the connection does not fix the issue, try resetting the power adapter. •Unplug adapter power cord from the wall outlet and from the system. •Keep it ideal for about 2 minutes so it will reset. •Reconnect adapter to the system and to the wall outlet. •If the LED is not glowing, may be adapter is faulty and further troubleshooting If adapter works fine after reseating •Isolate the power adapter issue by removing internal connectors, power connectors, or the cable harness to identify whether any of these components are causing this issue. •Continue troubleshooting by reconnecting devices one at a time to identify the failed component (like hard drive, optical disk drive, daughter boards etc.). System Board System board issues can be identified with the help of various indicators like diagnostics LEDs, power button LEDs and beep codes. Isolation Step : By Removing Memory Modules Easiest way to the functionality of system board is by removing the memory module. If 4 beeps are not heard while turning on the system then the system board is faulty. System Board Errors

Main Causes BOOT MODE and SATA Operation options in the System BIOS are the primary reasons for a No Boot issue after system board replacement, provided there is no hardware failure with System Board and Hard Drive. •If the technician can access BIOS before parts replacement, it is advisable to note down current setting in BIOS on a piece of paper PRIOR to replacement. (Highly Recommended). •If the system is not functioning before System Board replacement and the technician cannot access the BIOS and retrieve the settings from the Original System Board, perform the steps provided in to following pages. Changing the BIOS options Change the following BIOS options in http://prm.dell.com/content2/cninv000000000038514/consumer/Girish/Windows_10/Window s10_Reference_Content/FS_UEFI.htm - Windows 7 SATA Operations – AHCI (RAID ON if system has a RAID CARD or if RAID is configured on the system) Boot Mode – Legacy Secure Boot – Disabled Boot Sequence – Set the Hard Drive (with the Operating System installed) as the Fist Boot Device - Windows 8/8.1 SATA Operations – AHCI (RAID ON if system has a RAID CARD or if RAID is configured on the system) Boot Mode – UEFI Secure Boot – Enabled (Change it to Disabled if it does not boot) Legacy ROM – Enabled Boot Sequence – Set the Hard Drive (with the Operating System installed) as the Fist Boot Device - Windows 10 SATA Operations – AHCI (RAID ON if system has a RAID CARD or if RAID is configured on the system) Boot Mode – UEFI Secure Boot – Off Legacy ROM – Enabled Boot Sequence – Set the Hard Drive (with the Operating System installed) as the Fist Boot Device Introduction Display problems should be isolated to the monitor/LCD, cable or the video adapter. For desktop monitors always check that the cable is secure and the pins are aligned. Common symptoms for LCD/monitor or video adapter failure includes: •Caps lock, num lock, and scroll lock LEDs respond to their respective keys even though the display remains blank. •Windows start-up sounds play, but the display remains blank. •The display is jittery, distorted, or flickers and powering up or down.If the display is working but is displaying distorted lines, restart the system in safemode or safe-mode with basic video drivers. Software-related problems can be eliminated in safe mode. Isolation Steps - Isolation Steps 1: Basic verification of power source and connections the external power source or wall socket. • the intermediary or connecting devices such as extension cords or surge suppressors. •Swap the power cord/adapter and video input cable

- Isolation Steps 2: Monitor Self-Test operation Turn off both your computer and the monitor. •Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove all video cables from the back of computer. •Turn on the monitor. The floating dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains blue. Also, depending upon the selected input, one of the dialog boxes shown below will continuously scroll through the screen. •This box also appears during normal system operation if the video cable becomes disconnected or damaged. •Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor. Table below shows possible messages you will see when the input cables are not connected. - Isolation Steps 3: Monitor Built-in Diagnostics For those monitors that built-in diagnostics, check the respective monitors troubleshooting section for detailed instruction for launching the built-in diagnostics. Dell UZ2x15H series Flat monitor is used here as an example 1 Ensure that the screen is clean (no dust particles on the surface of the screen). 2 Unplug the video cable(s) from the back of the computer or monitor. The monitor then goes into the self-test mode. 3 Press and hold Button 3 and Button 6 on the front simultaneously for 2 seconds. A gray screen appears. 4 Carefully inspect the screen for abnormalities. 5 Press Button 3 on the front again. The color of the screen changes to red. 6 Inspect the display for any abnormalities. 7 Repeat steps 5 and 6 to inspect the display in green, blue, black, white and text screens. 8 The test is complete when the text screen appears. To exit, press Button 3 again. Isolation Steps 1: LCD BIST Most Notebooks have an LCD BIST which runs independently of the video controller which can be run through: •ePSA Diagnostics •Standalone LCD BIST LCD BIST Through ePSA Turn on the system. •At the Dell splash screen tap continuously on key until the one-time boot menu appears. •Using the down arrow key navigate to the Diagnostics option and press <Enter> key, to start ePSA. • At about 15 seconds after starting the ePSA will hear a beep and a question will appear on the system screen, if colors are displayed properly. Press key for No and fail ePSA to initiate LCD BIST. Flashing color patterns and loud beeps follow. This entire sequence takes less than 2 minutes, and the BIST portion itself lasts only a few seconds. •At the end of the test, a message appears: "Video – reported the patterns were not displayed Continue testing?" This does not by itself mean the LCD failed; the BIST was deliberately activated by pressing N (No). Note: You will always get the error codes 3-3-3 or 3-3-4 for deliberately having failed the BIST. When you get these codes, do not replace any hardware If the color patterns do not appear, the beeps are very low or inaudible, or the video issue is clearly seen during the BIST (i.e., lines on screen), the LCD BIST fails and you can replace the LCD.

•If the beeps and flashing color patterns appear without any distortion, the LCD should be fine. Do not replace the LCD. Provided that software, settings, and other factors are ruled out, the root cause then could be the video card/motherboard. Standalone LCD BIST •Hold down the "D" key and press the power button. •The system will immediately launch the LCD BIST. Note: For the Latitude E-series, if the LCD BIST es, but the ePSA specifically fails only during the inverter test, you can replace just the inverter. Isolation Steps 2: LVDS Cable •Prior to LCD replacement, always check LCD cables for good connection. If in doubt, re-seat and re-check. •If inverter or converter board is also dispatched, they should be tried prior to LCD replacement. (As with all multi-part dispatches, try and eliminate the least expensive commodities first.) •It is not typical to have multi-part failure. If the LCD BIST fails, do not replace the motherboard unless it also clearly fails a diagnostic test, or thorough logical troubleshooting identifies some other fault with it. Avoid replacing multiple parts unnecessarily. Isolation Steps 3: External Monitor Using an external monitor is not adequate troubleshooting; however, the use of an external monitor can help isolate a display problem. •If the problem resolves on the external display, it is likely the LCD. •If the problem persists on the external display, it is likely the video adapter. No Post No Video Source of Failure If a problem occurs during POST, one or more of the following may indicate the source of failure: •Diagnostic LEDs on the back of a desktop system, or the top/front of a portable system. •Power LED on the front of a desktop or portable system is solid or flashing. •Beep codes emanating from the system speaker •Error messages displayed on the monitor Examination of these indicators may allow immediate diagnosis of the problem. Should the indicators be ambiguous or unlisted, you should still be able to use the Three-Step Troubleshooting Method to narrow down the list of possible causes. Point of Failure The points of failure (POF), there are some essential POFs. These POFs are critical for the computer to POST. You will need to use your logical thinking and troubleshooting skills to determine if you have a POST or a Power issue. Here we will discuss POST failures. Nonessential POFs are not necessary for the computer to complete POST, but they can still cause a problem with POST. Nonessential components can be removed from the computer during POST troubleshooting. , while nonessential POFs are not necessary for POST, they are essential for normal computer operation. Isolation steps : No Post When troubleshooting a no-POST issue, or any other kind of computer issue, your goal is to isolate the problem to one thing. In the case of no POST issues, this will likely be one of the components below. •System Memory •Power •Nonessential components such as the hard drive, peripherals, and docking station. •Processor •System Board

Reseat: Memory modules and expansion cards should be reseated. This means that memory modules or expansion cards should be removed from their sockets and then replaced. Swap: Whenever possible, find a known good part that you can swap with a part that you suspect might be bad. Remove: Whenever possible, remove or disconnect all nonessential components from the computer. If the part is not necessary to recreate the problem, remove it. Isolation steps : No Video Video initializes during the POST process. If the computer stops before it completes POST, there may be no video. Because there is no video being displayed, it can be difficult to determine if the problem is a video issue or a POST problem. With POST issues, there are usually other indicators that can be used for isolation, like diagnostic LEDs or beep codes. Sometimes you will see video when the computer starts up, but the screen might go blank when Windows starts to load. This is usually caused by driver corruption. A driver is software that allows the operating system to work with a particular piece of hardware. Video Point of Failures Certain components are needed for video. These include: •A display (often a CRT monitor or an LCD screen) •Portable Display (LCD , LCD cable, and LCD inverter) •Power to the display •Graphics adapter (also called a video card) •Connection between the external display and the graphics adapter Desktop No Video Isolation Isolation steps : No Video Desktop Isolation Below are a few no video troubleshooting tips: •Use the Guides to find the settings for the display. •Brightness/Contrast •Meaning of yellow and blinking monitor power LED •Self-Test •If customers have a second computer, they will usually have another working display that they are willing to swap with the problem computer. •When customers do not have a known good display to swap, it can be difficult to determine if the problem is with the graphics adapter or the monitor. Portable Isolation Portables have the same troubleshooting steps and logic with a few variations and additions. Reseating the LCD Cable: •Use the Guides to find the setting for the LCD display. •Reseating the LCD cable is one of the major troubleshooting steps when you're getting a no video issue. Before you can reseat the LCD cable, you must remove the hinge cover. Using an External Monitor: •Many customers have a second computer. The other computer will usually have a working external display. Often customers are willing to attach this display to the portable. •If an external monitor shows video, then it's possible that the LCD is causing the issue. If you get the same issue on both displays, then it's possible that the video card is causing the issue •When customers do not have a known good display to attach externally, it can be

difficult to determine if the problem is with the graphics adapter or the LCD. Troubleshooting Video Ports Many customers have other external devices to hook up to their portable systems. (TVs, Projectors, Flat s, etc). By eliminating the video port of the system, the error points to the external device that the customer is using. Isolation steps : Using ePSA The Preboot System Assessment (ePSA) diagnostic tool can be used to troubleshoot no video in two ways. When you activate the ePSA, you get audio tones as it goes through its initial tests. If you hear the tones but see no video, then you can suspect the LCD/Monitor or video card might be the problem. The second reason to use ePSA is to troubleshoot portables with video issues. There is a direct signal generated to the LCD that scans through 4 full screen colored s. If you can see those, then the display itself is likely not the cause of the failure. Real Time Clock reset RTC Reset The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell XPS, Latitude and Precision systems from No POST/No Boot situations. You can initiate the RTC reset on the system from a power off state and is connected to AC power. Press and hold the power button for twenty-five (25) seconds. The system RTC Reset occurs after you release the power button. Note: Real Time Clock (RTC) reset is available on select Dell XPS, Latitude and Dell Precision PCs only. Refer to the table at the bottom of this page. If AC power is removed from the system during the process or the power button is held longer than 40 seconds, the RTC Reset process is aborted. The RTC reset will reset the BIOS to Defaults, un-provision Intel vPro (The IT ’s vPro and on the system will be "un-provisioned," and the system will need to go back through the setup and configuration process again to connect it to the vPro server again.) and reset the system date and time. The following items are unaffected by the RTC reset: •Service Tag •Asset Tag •Ownership Tag • •System •HDD •Key Databases •System Logs These items may or may not reset based on on your custom BIOS setting selections: •The Boot List •Enable Legacy Option ROMs •Secure Boot Enable •Allow BIOS Downgrade Latitude Self-heal What Is Latitude Self-Heal? Latitude Self-Heal is an option that helps recover a Latitude system from a No Post, No Power, No Video situation. Latitude Self-Heal clears the CMOS on the motherboard and rewrites the BIOS to original factory defaults. After clearing the CMOS, Latitude Self-Heal will reset hardware settings back to factory defaults.

Note: • It is recommended to perform Latitude Self-Heal before replacing the system board. • Latitude Self-Heal can be avoided when complete teardown of the system is required to access the coin-cell battery. • For Latitude E7 Series (XX70), BIOS Recovery 2.0 should be performed as the first step before attempting Latitude Self-Heal. • In order to reduce troubleshooting time associated with Latitude Self-Heal, there is no mandatory requirement to reassemble the system. Latitude Self-Heal can be initiated even with the system board exposed. • When running Latitude Self-Heal on an exposed system, do not touch any of the exposed components. • Only when Latitude Self-Heal is unable to recover the failure, proceed with replacing the system board. ed Systems Latitude E1 to E7 series are ed for Latitude Self-Heal. systems listed below are available in the market. Latitude E4 Series: 6430U E6230 E6330 E6430 E6430 ATG E6430S E6530 Latitude E5 Series: 3340 3440 E5440 E5540 E6440 E6540 E7240 E7240X E7440 Latitude E6 Series: 3150 3160 3450 3550 5250 5450 5550 7350 E5250 E5550 E7450 Latitude E7 Series: 7370 E5270 E5570 E7270 E7470 How to Perform Latitude Self-Heal

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STEP 1 Remove the AC adapter and primary battery. STEP 2 Unplug the coin-cell (CMOS) battery from the motherboard. STEP 3 • Release the flea power. • Ensure the coin-cell battery and the primary battery are not plugged into the system. STEP 4 Plug in the AC adapter and power on the machine. Note: • The system will start automatically with a blank screen for a while and will shut down automatically. This will happen twice (watch for the LED lights). • The above behavior may take 5-6 minutes maximum. • Remove the AC adapter and proceed to step 5. STEP 5 Plug the coin-cell (CMOS) battery back into the motherboard. STEP 6 Connect the primary battery and AC adapter. Note: • During installation or removal of any hardware, always ensure all data is backed up properly. • For instructions on how to remove or replace parts, refer to the disassembly section of each Latitude system's respective reference material. • Before beginning to work on the computer, be sure to follow the safety instructions. Upon successful completion of the above steps: ✔ The system will power on with the Dell logo. ✔ Set the correct date and time. ✔ Update the latest BIOS. BIOS Recovery BIOS Recovery 1 BR1 is only applicable via USB key only method. BR1 recovery files are known as Crisis Recovery (CR) files (.cap or .hdr) . BR1 is only ed on Inspiron, Vostro, XPS, Alienware notebook platforms shipping before NOV 2015 (System prior Skylake processor) Note: The USB keys will only be provided on special project case basis. TS agents must follow the escalation path of Ll L2 or your local will be able to help create and provide the USB keys with necessary recovery file on them. BR2 Process BR2 is a Boot Block technology software designed to recover a Possibility of solving No Post and No Boot related issue. The key feature is to provide flexibility to initiate the BR2 •System's primary hard drive •External USB key. Essential Knowledge BR2 Process BR2 is a Boot Block technology software designed to recover a Possibility of solving No Post and No Boot related issue. The key feature is to provide flexibility to initiate the BR2 •System's primary hard drive •External USB key. Essential Knowledge

corrupted BIOS process from:

corrupted BIOS process from:

BR2 does not trigger via Touch •Notebook platform uses built-in keyboard only as trigger method •Desktop, AIO and pAlO platform uses external keyboard (Bluetooth Keyboard only works if BIOS has POST for platform specific Bluetooth Keyboard) •Tablet platform uses buttons as trigger method •Convertible and Detachable platform s trigger from both external keyboard or buttons BR2 Image default search location •When no USB key is plugged into the system, BIOS Recovery will be attempted from the HDD •If a USB key is inserted then by default, external USB key 's the first search location •In the situation where images present 'n both external and primary HDD, the 'mage 'n the USB key will be executed BIOS If there was a BIOS set earlier, is required to enter the prior launching BR2 setup page Encrypted Hard Drive / Hard Drive Protected •The BR2 does not recovery from : •Encrypted Hard Disk Drive •When Hard Disk Drive 's set •BR2 will attempt to search for the recovery image but eventually will fail as indicated by LED Codes Tablet Special Case •When using an external USB key to recover the BIOS on a tablet with single USB port for power and data, needs to ensure that battery 's charged to at least 50% before initiating the process Recovery settings in BIOS •Recovery from system's primary Hard Disk Drive option can be disabled by in BIOS •When this option is disabled, BIOS will not save a copy of recovery file into the hard drive when flash the BIOS •This setting is set to Enabled by default •It is not possible to recovery BIOS from the Hard Drive if the Customer unchecked this option before failure occurred Maintain current BIOS settings •If wash to keep the current BIOS settings, set the "Reset NVRAM" option to "Disabled" before starting the recovery process What to do when Hard Disk Drive was replaced or formatted before? •In order to successfully execute BIOS Recovery via HDD, the BIOS recovery file (BOS CUR.RCV) must be present on the ESP partition of the primary HDD. •If Hard Disk Drive was replaced or formatted, the original ESP partition including the recovery file will be lost and BIOS recovery is no longer possible. •To re-provision the HDD for BIOS Recovery, we must ensure that ESP partition is created before flashing the BIOS (even the same version). •BIOS must be set to UEFlboot, and not Legacy boot. How to create ESP partition and recreate the BIOS recovery file 1 Create the ESP Partition. The ESP partition can be created during OS installation. (Only for Windows 7 64-bit, Windows 8/8.1, Windows 10) via GUID partition table Note: GUID partition table (T) is a partitioning scheme that is part of the UEFI

Specification 2 the BIOS update executable for the specific system from Dell e- website. 3 When the BIOS update executable file is used to flash the BIOS, it will automatically create the recovery file (BIOS CUR.RCV) on ESP partition on the HDD 4 The system IS now re-provision to BIOS Recovery via HDD Note: Ensure that BIOS Recovery option is BIOS is enable When to use BIOS Recovery via USB Key? •BIOS Recovery via USB method should only be executed when BIOS Recovery via HDD is not possible (Recovery file or ESP partition is missing) BR2 files for external USB key •Where to obtain BIOS recovery files: •For ed system with Dell BIOS (Business Client (BC) Platform), the files can be ed from Dell’s e site • the BIOS executable fie and rename the file name and type to BIOS_IMG.RCV •Rollback BIOS option is not available when recovering using external USB Key Note: BIOS_IMG.RCV must reside in the root directory or "\" Trigger Method Each platform has its own unique way to access the BIOS Recovery main page. Desktop & AIO 1 Turn on the PC. 2 Immediately hold down on "Ctrl-Esc" Key until the BIOS Recovery page appear. The "Ctrl+Esc" key combination trigger is used on platforms where external keyboard is the primary input. This applies to Desktop, AIO and portable-AIO platforms ed Keyboard type: •PS2 Keyboard •USB Keyboard •BT Keyboard (If BIOS has POST for Platform specific BT Keyboard) Notebook 1 Hold down 2 Plug in AC Adapter to notebook 3 Release the “CTRL + Esc” key Tablet 1 Hold down "Volume Down" Button 2 Plug in AC Adapter to tablet 3 Release the "Volume Down" Button Note:For tablet with only a single USB Port and need to recover the BIOS using external USB Key, ensure the system's battery is charged up to at least before starting the process. Convertible and Detachable Platform Convertible and detachable platform s both Key sequence and Button sequence where touch is the primary input and the physical keyboard is part of the standard hardware configuration. Key Sequence Trigger 1 Hold down "CTRL + Esc" key 2 Plug in AC Adapter 3 Release the "CTRL + Esc" key Button Sequence Trigger 1 Hold down "Volume Down" Button 2 Plug in AC Adapter 3 Release the "Volume Down" Button

Note: BR2 does not trigger from touch Error Beep / LED Code When a Recovery Image is not found Desktop LED Behavior : 3,6 When a Recovery Image is found but invalid Portables/Tablets LED Behavior : 3,3 BR2 Table List BR2 is available on Latitude, Optiplex, Precision, Venue, Inspiron, Vostro, XPS, Alienware NB, IOT platforms shipping Nov 2015 onwards on systems with Skylake and later, which includes modern OS such as Win 7 64-bit, Win 8.1, Win 10. (systems with Intel Skylake or later) BIOS Auto-Recovery BIOS Auto-Recovery automatically recovers BIOS without actions. This feature requires BIOS Recovery from hard drive to be Enabled. When set to Enabled, BIOS checks the BIOS image integrity on boot and, if failed, initiates BIOS recovery from the hard disk. The default option is "Disabled".

Goals and Objectives The course introduces you to different client technologies and highlights more on latest technologies used in portables and desktops.

Upon completing this lesson, you will be able to: ⇒ Identify different types of power adapters. ⇒ Identify different types battery. ⇒ Describe the features of a processor. ⇒ List the different types of memory. ⇒ List the different types of display. ⇒ Describe the features of touch and non-touch displays. ⇒ List the difference between WLAN and WWAN. ⇒ List the different types of USB. WIIFM •The course provides an overview of the technologies involved in desktops and laptops. Introduction The course covers the following technologies: •Power Adapter •Battery •U •Thermal Heat Sink •System Fan •Chipset •Memory •Display

•Camera •Storage •Graphics •Audio •PSU •WLAN & WWAN •USB •HDMI •Bluetooth Power Adapters for Laptops There are three types of AC Adapters shipped with Dell notebooks and Tablets. The location of the power LED, if any, and watts are the distinguishing features. 1. AC Adapter with LED on brick 2. AC Adapter with LED on DC Tip 3. AC Adapter with no LED Parts of the AC Adapter 1. Power adapter 2. Barrel-charging plug 3. AC power cord 1. Power adapter 2. DC cable 3. Type-C charging plug 4. DC cable LED 5. USB charging port • The following AC Adapters are shipped with Dell laptops - 65 W, 90 W, 130W, 150W, 180W or 245W. • Depending on the region, 2 or 3 pin adapters will be available. Please part numbers from SPMD before replacing the AC Adapter. • When you disconnect the power adapter cable from the laptop, grasp the connector, not the cable itself, and then pull firmly but gently to avoid damaging the cable. • The power adapter works with electrical outlets worldwide. However, power connectors and power strips vary among countries. Using an incompatible cable or improperly connecting the cable to the power strip or electrical outlet may cause fire or equipment damage. Battery Types Batteries do not have charge indicator LEDs. The battery operating time is largely determined by the number of times it is charged. After hundreds of charge and discharge cycles, batteries lose some charge capacity (battery health). That is, a battery can show a charged status, but maintain a reduced charge capacity. Dell offers the following battery types: •Dell 4-Cell Primary Lithium-Ion Battery •Dell 6-Cell Lithium Ion Battery •Dell 8-Cell Lithium-Ion Primary Battery •Dell 9-Cell Primary Lithium-Ion Battery U / Processor Overview U or Central Processing Unit is also known as the processor or microprocessor. U is responsible for executing a sequence of instructions of a program by performing basic arithmetic, logical and input / output operations specified. The form, design and implementation of U has changed a lot over time but their fundamental operation remains almost the same. Most of the recent Us are microprocessors, meaning they are contained on a single

integrated circuit (IC) chip. An IC that contains a U may also contain memory, peripheral interfaces, and other components of a computer. Such integrated devices are called microcontrollers or systems on a chip (SoC). Some computers employ a multi-core processor, which is a single chip containing two or more Us called "cores. Array processors or vector processors have multiple processors that operate in parallel, with no unit considered central. The following are some of the most popular manufactures of processors: •Intel •AMD •Qualcomm •NVIDIA •IBM •Samsung •Motorola •Hewlett-Packard (hp) Thermal Heat Sink Overview A heat sink is a ive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature at optimal levels. In computers, heat sinks are used to cool central processing units or graphics processors. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature. A heat sink is designed to maximize its surface area in with the cooling medium surrounding it, such as the air. Air velocity, choice of material, protrusion design and surface treatment are factors that affect the performance of a heat sink. Heat sink attachment methods and thermal interface materials also affect the die temperature of the integrated circuit. Thermal adhesive or thermal grease improve the heat sink's performance by filling air gaps between the heat sink and the heat spreader on the device. A heat sink is usually made out of copper and/or aluminium. Copper is used because it has many desirable properties for thermally efficient and durable heat exchangers. First and foremost, copper is an excellent conductor of heat. This means that copper's high thermal conductivity allows heat to through it quickly. Aluminum is used in applications where weight is a big concern. Removing the Heat Sink Assembly Here is the procedure to remove Heat Sink Assembly. 1. Remove the base cover and battery. 2. Disconnect the fan cable. 3. Remove the screws that secure the heat sink assembly to the computer and the system board [1, 2]. 4. To remove the heat sink: a. Remove the screws that secure the heat sink assembly to the system board [1, 2, 3, 4]. Remove the screws that secure the heat sink to the system board in the order of the callouts shown [1, 2, 3, 4]. b. Lift the heat sink assembly from the system board [5]. NOTE: When reassembling the heatsink, always secure the screws as per the order of the callouts shown [1, 2, 3, 4]. System Fan Overview A system fan is any fan inside, or attached to, a computer chassis used for active

cooling. As processors, graphic cards, RAM and other components in computers have increased in speed and power consumption, the amount of heat produced by these components has also increased. These components need to be kept within a specified temperature range to prevent overheating, instability, malfunction and damage leading to a shortened component lifespan. To cool these components, fans are used to move heated air away from the components and draw cooler air over them. Fans attached to components are usually used in combination with a heatsink to increase the area of heated surface in with the air, thereby improving the efficiency of cooling. Chipset Overview In a computer system, a chipset is a set of electronic components in an integrated circuit that manages the data flow between the processor, memory and peripherals. It is usually found on the motherboard. Chipsets are usually designed to work with a specific family of microprocessors. Because it controls communications between the processor and external devices, the chipset plays a crucial role in determining system performance. Chipset Manufacturers Here is a list of top Chipset manufacturers: •Intel •Qualcomm •AMD •NVIDIA •MediaTek •Broadcom •VIA Technologies •Silicon Integrated Systems •Spreadtrum Communications •Hercules Computer Technology Inc. •ALi Chipset Technologies 1. Anti-Theft The Intel Anti-Theft Technology (Intel AT) within the Intel Core™ processor provides IT s with intelligent protection of lost or stolen assets. With Intel AT, can now disable a lost or stolen PC with a local or remote "poison pill". This poison pill can delete essential cryptographic material from system hardware in order to disable access to encrypted data stored on the hard drive. The poison pill can also block the laptop's boot process, rendering the system a "brick". Intel AT includes several hardware-based detection mechanisms that can prompt the laptop to enter theft mode and lock down. Detection of potential loss or theft can occur based on local policy or via a remote connection over the Internet to the theft-management server. Hardware-based detection and trigger mechanisms include: •Excessive attempts - After an IT-specified number of failures in the Pre-Boot Authentication(PBA) screen, the laptop enters theft mode as specified by IT policy. •Missed check-ins - IT can define intervals at which the laptop must check in with the central server via the internet using the built-in timer. If a check-in is missed, the local timer will expire and the laptop will immediately go into theft mode, even if it is not connected to the internet. •Notification via the central server - The IT can flag the laptop in the central server if the loss or theft of the PC is reported by an individual. The next time the laptop connects to the central server, the central server can send the poison pill via wired or wireless LAN and put it into theft mode. •Notification via encrypted SMS text message - The central server can send an encrypted SMS text message to enter theft mode if the laptop is 3G-enable. For this

option, the laptop need not be connected to the internet, but it must be within range of a 3G network and its operating system must be functioning. 2. Virtualization Intel Virtualization Technology provides greater flexibility and maximum system utilization by consolidating multiple environments into a single server, workstation, or PC. Intel VT delivers: •Simplified resource management increasing IT efficiency. •Greater systems reliability and availability reducing corporate risk and real-time losses from downtime. •Lower hardware acquisition costs with increased utilization of the machines you already have. 3. Turbo Boost Intel Turbo Boost is a technology implemented by Intel in certain versions of their Nehalem, Sandy-Bridge and Ivy-Bridge based Us, including Core i5 and Core i7 that enables the processor to run above its base operating frequency via dynamic control of the U's "clock rate". It is activated when the operating system requests the highest performance state of the processor. Processor performance states are defined by the Advanced Configuration and Power Interface (AI) specification, an open standard ed by all major operating systems; no additional software or drivers are required to the technology. 4. vPro Technology Intel vPro technology is a set of IT capabilities-manageability, security, power management-embedded into the hardware of PCs with 2nd gen Intel Core vPro processors. Because the capabilities are built into the hardware, they are available virtually anytime, even if the OS is inoperable, PC power is off, or the hard drive has failed. The capabilities are available for wired and wireless PCs, and most capabilities are also available for PCs that are outside the corporate firewall. Intel vPro technology takes advantage of an intelligent processor, chipset, and networking silicon features, along with protected flash memory. When combined with existing independent software vendor (ISV) consoles that Intel vPro technology, Intel vPro technology can deliver a comprehensive, responsive, tamperresistant solution for security and manageability. A key benefit of being embedded in hardware is that the capabilities are less susceptible to the problems that typically affect an OS, software applications, and hard drives. For example, because Intel vPro technology is designed into PC hardware, it is resistant to tampering, boot issues, and other problems that can affect an OS and/or security application. 5. Hyper Threading Intel Hyper-Threading Technology (Intel HT Technology) delivers thread-level parallelism on each processor resulting in more efficient use of processor resources—higher processing throughput—and improved performance on multi-threaded software. An Intel processor and chipset combined with an OS and BIOS ing Intel HT Technology allows you to: •Run demanding applications simultaneously while maintaining system responsiveness •Keep systems more secure, efficient, and manageable while minimizing impact on productivity •Provide headroom for future business growth and new solution capabilities 6. Identity Protection Intel Identity Protection Technology (IPT) is a hardware-based security feature available with the new 3rd or 2nd Generation Intel Core and Core vPro processors. An IPT algorithm runs on the chipset to generate a new numerical every 30

seconds, integrating into the processor functionality that was previously only available on an external card or key fob. Intel Identity Protection Technology provides strong techniques for avoiding the threat of identity theft by giving you the opportunity to link your physical PC to each Intel IPT enabled online that you use. How does it work? With Intel Identity Protection Technology (Intel IPT) on all Ultrabook devices and the latest PCs with Intel Core vPro processors, Intel provides a hardware root of trust that can be utilized by multi-factor authentication solutions. Intel IPT enabled systems with 3rd generation Intel Core processors offer additional identity protection and transaction verification methods. 7. Responsive Technology A suite of three powerful technologies developed by Intel conserve battery life, deliver speed, and provide fresh Internet content: •Intel™ Smart Response Technology: Smart Response is a feature that uses both a traditional hard disk drive (HDD) and a solid state drive (SSD) of greater than 32 GB together. It dynamically monitors file, data, and application use, and stores frequently used content on a special partition on the SSD device for faster access. It provides SSD like read/write performance for the files used most frequently, while providing lower overall storage cost by sorting and storing less frequently accessed content on the largersized traditional HDD. •Intel™ Rapid Start Technology: Intel Rapid Start is a feature that provides power savings similar to Windows hibernate state, while improving resume time vs. hibernate by ~2x. Rapid Start may be combined with Smart Response on some systems to enhance overall system performance while also reducing power consumption when not in use. •Intel™ Smart Connect Technology: Smart Connect is a feature that periodically wakes the system from the Windows sleep state to refresh email or social networking applications. When the system is equipped with specific wireless devices, it can detect the presence of known networks while asleep, waking only when connectivity is available (this feature is called Net Detect). When properly equipped with specific wireless devices, Smart Connect can also provide quick internet connection readiness by keeping wireless devices active in a low-power mode during sleep (this feature is called Quick Connect). Memory Overview The term "memory", meaning "primary storage" or "main memory", is often associated with addressable semiconductor memory, i.e., integrated circuits consisting of silicon-based transistors, used for example as primary storage but also other purposes in computers and other digital electronic devices. There are two main kinds of semiconductor memory, volatile and non-volatile. Examples of non-volatile memory are flash memory (used as secondary memory) and ROM, PROM, EPROM and EEPROM memory (used for storing firmware such as BIOS). Examples of volatile memory are primary storage, which is typically Dynamic Random Access Memory (DRAM), and fast U cache memory, which is typically Static Random Access Memory (SRAM) that is fast but energy-consuming, offering lower memory areal density than DRAM. Memory Modules DDR Double Data Rate (DDR) is a type of memory where data is transferred on both the rising and falling edges of the clock signal. DDR2 Data Rate (DDR) is a type of memory where data is transferred on both the rising

and falling edges of the clock signal. DDR2 memory, double pumps the data bus. DDR2 allows higher bus speed and requires lower power by running the internal clock at half the speed of the data bus. DDR3 Memory DDR3 continues the evolution in memory technology and provides several improvements to the existing DDR2 architecture. The primary benefit is an increase of the I/O bus to operate at four times the speed of the memory cell it contains. DDR3 also allows for chip capacities from 512MB to 8GB. This ability in effect allows for memory modules of up to 16GB in size. Some of the features of DDR3 are: •Higher speeds: DDR3 provides higher memory transfer rates. •Doubled prefetch buffer: DDR3 doubles the prefetch buffer from 4 bits to 8 bits. As a result, the increase in the data transfer rate provided by DDR3 does not require faster operation of the memory core. Only external buffers start working faster. •On-Module termination: DDR3 uses fly-by topology with on-module signal termination to transfer addresses, management, and stabilization commands. It means that the signals are sent to all chips of the memory modules one by one, and not altogether at the same time. This allows for more efficient data flow, storage, and retrieval. •Read/Write leveling: DDR3 controllers now have to successfully recognize and process time shifts on data receipt from the chips generated by fly-by architecture used for commands transfer. This technique is known as read/write leveling. •Reduced voltage requirement: The voltage technology for DDR3 has been scaled down from 1.8V (DDR2) to 1.5V. This results in a power savings of almost 30%. DDR3L Memory The "3L" in DDR3L stands for low-voltage. JEDEC introduced two low-voltage standards. The DDR3L standard is 1.35V and has the label ''PC3L'' for its modules. Examples include DDR3L-800, DDR3L-1066, DDR3L-1333, and DDR3L-1600. The DDR3U standard is 1.25V and has the label "'PC3U"' for its modules. The DDR3L standard defines the operating characteristics for DDR3L memory devices, with the devices offering a reduction in power consumption of 15% or more as compared to DDR3, when operating at the same performance and load capacity. This significant reduction in power consumption, especially in memory-intensive systems, will have dramatic benefits in areas such as power supply demand, system cooling requirements, and potential packaging density. DDR4 Memory The DDR4 SDRAM device is an evolutionary device that improves upon the DDR3 SDRAM generation in of capacity, performance scalability, and power efficiency, as well as system-level reliability, availability, and serviceability. At the same time, DDR4 must minimize changes that hinder design migration and adoption of the new industry-standard component. Identify DDR2, DDR3, and DDR3L Memory slots on system boards that DDR3 are keyed to ONLY accept DDR3 modules. DDR2 will not fit into a DDR3 slot and DDR3 will not fit into a DDR2 slot. The DDR3 has the label ''PC3'' for its modules. The DDR3L standard is 1.35V and has the label ''PC3L'' for its modules. Display Overview A display device is an output device for presentation of information in visual or tactile form. The display provides instant by showing you text and graphic images as you work or play. Both analog and digital displays exist. CRT LCD LED

Some of the most popular display technologies are: •Cathode ray tube display (CRT) •Light-emitting diode display (LED) •Electroluminescent display (ELD) •Plasma display (PDP) •Liquid crystal display (LCD) — High-Performance Addressing display (HPA) — Thin-film transistor display (TFT) •Organic light-emitting diode display (OLED) Most desktop displays use liquid crystal display (LCD) or Light Emitting Diode (LED) or Cathode Ray Tube (CRT) technology, while nearly all portable computing devices such as laptops incorporate LCD / LED technology. Depending on the technology used and the type of computer, display devices are available in different screen sizes, refresh rates, resolutions, viewing angle, Sharpness etc. The size of a display is measured diagonally. Display devices also various graphic inputs like HDMI, DVI, VGA etc. Refresh rate is actually important when one talks about the CRT displays. The rate was the measurement to tell how fast and efficient a CRT display is. The rate describes how fast an electron gun can throw electrons on the screen and how fast the display can be shown. The refresh rates for the devices, which were considered good, were between 65 and 75 hertz. Sometimes they reach 85 hertz as well. It meant that the screen could be refreshed around 85 times in just one second. Refresh Rates Refresh rate is actually important when one talks about the CRT displays. The rate was the measurement to tell how fast and efficient a CRT display is. The rate describes how fast an electron gun can throw electrons on the screen and how fast the display can be shown. The refresh rates for the devices, which were considered good, were between 65 and 75 hertz. Sometimes they reach 85 hertz as well. It meant that the screen could be refreshed around 85 times in just one second. Refresh rate is actually important when one talks about the CRT displays. The rate was the measurement to tell how fast and efficient a CRT display is. The rate describes how fast an electron gun can throw electrons on the screen and how fast the display can be shown. The refresh rates for the devices, which were considered good, were between 65 and 75 hertz. Sometimes they reach 85 hertz as well. It meant that the screen could be refreshed around 85 times in just one second.and Resolution The most important thing when it comes to computer displays is the resolution of the dispaly. The resolution is normally presented with the number of the pixels wide, the width, and the number of the pixels height. It indicates the pixel dimension, which is the total number of the pixel in every direction, regardless of the fact that the size is big or small. Refresh Rates Refresh rate is actually important when one talks about the CRT displays. The rate was the measurement to tell how fast and efficient a CRT display is. The rate describes how fast an electron gun can throw electrons on the screen and how fast the display can be shown. The refresh rates for the devices, which were considered good, were between 65 and 75 hertz. Sometimes they reach 85 hertz as well. It meant that the screen could be refreshed around 85 times in just one second. Resolution The most important thing when it comes to computer displays is the resolution of the dispaly. The resolution is normally presented with the number of the pixels wide, the width, and the number of the pixels height. It indicates the pixel dimension, which is the total number of the pixel in every direction, regardless of the fact that the size is big or small. Camera Overview

A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network. Most of Dell notebooks and All-in-Ones house an in-built Camera. The camera specifications, resolution ed and diagonal viewing angle vary by system model. Storage Overview Computer data storage is a technology consisting of computer components and recording media used to retain digital data. There are two types of storage devices used with computers: •A primary storage device, such as RAM and ROM •A secondary storage device, like a hard drive, Blue-Ray /DVD and others. Secondary storage can be removable, internal, or external storage. •Hard Drives A hard disk drive (HDD), hard disk or hard drive is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. HDDs are a type of non-volatile storage, retaining stored data even when powered off. •Solid State Drives (SSD)SSDs have no moving mechanical components. This distinguishes them from traditional electromechanical magnetic disks such as hard disk drives (HDDs) or floppy disks, which contain spinning disks and movable read/write heads. Compared with electromechanical disks, SSDs are typically more resistant to physical shock, run silently, and have lower access time and lower latency. •eMMC CardsThe term eMMC is short for "embedded Multi-Media Controller" and refers to a package consisting of both flash memory and a flash memory controller integrated on the same silicon die. The eMMC solution consists of at least three components - the MMC (multimedia card) interface, the flash memory, and the flash memory controller. •Pen Drives •Tape Drives •Zip Drives •Floppy Drives •Blue-Ray, DVD / CD Drives Redundant Array of Independent Disks (RAID) is a popular storage technology. HDD A hard disk drive (HDD), hard disk or hard drive is a data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. HDDs are a type of non-volatile storage, retaining stored data even when powered off. SSD SSDs have no moving mechanical components. This distinguishes them from traditional electromechanical magnetic disks such as hard disk drives (HDDs) or floppy disks, which contain spinning disks and movable read/write heads. Compared with electromechanical disks, SSDs are typically more resistant to physical shock, run silently, and have lower access time and lower latency. eMMC Cards The term eMMC is short for "embedded Multi-Media Controller" and refers to a package consisting of both flash memory and a flash memory controller integrated on

the same silicon die. The eMMC solution consists of at least three components the MMC (multimedia card) interface, the flash memory, and the flash memory controller. RAID Configurations 1. Enable / Disable RAID Steps to enable or disable the RAID mode in BIOS setup program NOTE: To avoid data loss, backup the data before entering the RAID mode. The RAID configuration procedure can result in loss of all data from the hard drives. 1. Turn on or restart your computer. 2. Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. The BIOS setup program is displayed. 3. On the left pane, select Settings > General > Boot Sequence > Legacy. 4. On the left pane, select Settings > System Configuration > SATA Operation > Legacy. 5. Select either of the three options, RAID , AHCI, or Disabled. 6. Save the BIOS setup program settings and exit. 2. Create RAID 0 Steps to create RAID 0 volume 1. Turn on or restart your computer. 2. Press Ctrl and I when the Dell logo is displayed on the screen to enter the Intel RST Option ROM program. 3. Select Create RAID Volume and press Enter. 4. Enter a name for the volume and press Enter. 5. Select RAID Level > RAID0 (Stripe) and press Enter. 6. Enter 128 KB for Strip Size and press Enter. 7. Retain Capacity to the maximum limit and press Enter. Create Volume is highlighted. 8. Press Enter. 3. Create RAID 1 Steps to create RAID 1 volume 1. Turn on or restart your computer. 2. Press Ctrl and I when the Dell logo is displayed on the screen to enter the Intel RST Option ROM program. 3. Select Create RAID Volume and press Enter. 4. Enter a name for the volume and press Enter. 5. Select RAID Level > RAID1 (Mirror) and press Enter. 6. Enter 128 KB for Strip Size and press Enter. 7. Retain Capacity to the maximum limit and press Enter. Create Volume is highlighted. 8. Press Enter. 4. Delete RAID Steps to delete RAID volume NOTE: Backup the data before deleting the RAID volume. The RAID deletion procedure will result in loss of all data from the hard drives. 1. Turn on or restart your computer. 2. Press Ctrl and I when the Dell logo is displayed on the screen to enter the Intel RST Option ROM program. 3. Select Delete RAID Volume and press Enter. 4. Select the array to be deleted and press Delete. 5. Enter Y to confirm that all data will be lost. 5. Reset Disks to non-RAID Steps to reset disk to non-RAID If the does not want to use RAID and instead wants to use the space on both hard drives, the disks need to be reset to Non-RAID. The RAID mode needs to be

disabled in Setup program before the can install the Operating System. 1. Turn on or restart your computer. 2. Press Ctrl and I when the Dell logo is displayed on the screen to enter the Intel RST Option ROM program. 3. Select Reset Disks to non-RAID and press Enter. 4. Use the Spacebar to select the disk to be reset. Repeat the step for resetting the next disk. 5. Enter Y to confirm resetting the disks to non-RAID. Graphics Overview Graphic card is very essential part of any computer system and it renders processed data into video signal before it is sent to your display (monitor or laptop display). Typically there are two types of graphics cards that we get to see. •Integrated graphics card •Discrete graphics card Intel, nVidia, AMD/ATI are some of the major manufacturers of Desktop / Notebook graphics cards. More detailed specifications of each graphic card and technology used can be obtained by visiting the respective manufacturers’ website. Types of Graphics Cards 1. Integrated Graphics Card = An integrated graphics card is bound to the motherboard and shares RAM with the U, reducing the total amount of RAM available. 2. Discrete Graphics Card = A discrete graphics card has a dedicated processing unit called a Graphics Processor Unit (GPU) and RAM. The GPU lets the computer's main processor do its job, allowing the computer to run at full speed. Discrete Graphics cards connect to the motherboard of a computer system using a slot, typically an Accelerated Graphics Port (AGP) or a Peripheral Component Interconnect Express (PCIe) connection. The dimensions of the graphics card and the connection technology will vary depending on form factor or chassis type of the computer. Graphic Card Connector Types The most common connection systems between the video card and the computer display are: •Video Graphics Array (VGA) •Digital Visual Interface (DVI) •Video In Video Out (VIVO) for S-Video, Composite video and Component video. •High-Definition Multimedia Interface (HDMI) •DisplayPort / Mini Display port Audio 1. Realtek High Definition (HD) Audio The Realtek High Definition (HD) Audio driver all of Realtek HD Audio Codec, delivering comparable playback quality to consumer electronic audio devices. Adopting Dolby Laboratories latest digital audio technology, the new PC audio solutions advance PC sound playback and enable PCs to fully emerging digital formats and devices. With high frequency bandwidth , the Realtek audio solutions make it possible for the PC to become the media platform of home theater/entertainment applications by ing multi-channel and high-quality audio formats such as DVD-Audio. Some of the advantages of Realtek HD audio driver are: •Full for new audio formats •A high frequency bandwidth • for connecting audio devices •Plug and Play Technology •More accurate speech recognition and input •Flexible mixing, mute, and fine gain control functions provide a complete integrated audio solution for home entertainment PCs

2. Conexant The Conexant CX20671 is a 24-bit Audio codec that meets performance and function requirements for Microsoft WLP (Windows Logo Program) 3.10 and stricter performance requirements for future WLP standards. The Conexant CX20672 is a High Definition Audio Codec that exceeds the WLP4.0 (Windows Logo Program) audio requirements for Windows 7 systems. 3. Cirrus Logic The Cirrus Logic CS4213 is a highly integrated stereo low-power HD Audio Codec featuring a 192 kHz DAC, an ADC with 2-to-1 anaput mux, a digital microphone interface, PWM speaker drivers and a ground centered Headphone driver. The stereo headphone amplifiers combine the efficiency of an integrated inverting charge pump with the high linearity and low EMI of a Class AB amplifier. The amplifier delivers a ground-centered output with a large signal swing even at low voltages and eliminates the need for external DC-blocking capacitors. In addition to its many features, the CS4213 operates from a low-voltage analog and digital core, making this part ideal for portable systems that require low power consumption in a minimal amount of space. 4. IDT Audio The 92HD87 single-chip audio system is a low-power optimized, high fidelity, 4channel audio codec with integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator. The high integration of the 92HD87 and the 40QFN package enables the smallest PCB footprint with the lowest system BOM count and cost. The 92HD87 provides high-quality HD Audio capability to notebook and business desktop PC applications. The IDT 92HD93 single-chip audio system is a low-power optimized, high fidelity, 4channel audio codec with integrated speaker amplifier, cap less headphone amplifier, and low drop out voltage regulator. The high integration of the 92HD93 enables the smallest PCB footprint with the lowest system BOM count and cost. The 92HD93 provides high-quality HD Audio capability to notebook and business desktop PC applications. PSU Overview A Power Supply Unit supplies power to internal components of a computer and are predominantly used on Desktop computers. The Power Supply Unit converts a 110-115 volt or 220-230 volts alternating current (AC) into a steady low-voltage direct current (DC) usable by the computer and rated by the number of watts it generates. Dell offers a number of Power Supplies varying in •Physical Size •Wattage •Connection Types •Diagnostic Capabilities A power supplies size, wattage and connection type are tied to the system chassis and application of the particular unit. A Mini Tower system would have large power supply and high wattage rating and usually additional power connections to meet the demand from Graphic cards and high end Us. A slim line desktop system will have a considerable smaller PSU and a lesser wattage rating and fewer power connections equaling the lesser power demands of the system. Dell power supplies also have varying levels of diagnostic capabilities including POST code indicators, Self-Test lights or Self-Test buttons with lights. PSUs job in a desktop is to deliver 12v, 5v, 3.3v DC power to the various components inside the computer from the motherboard to the system fans. In the event of a power failure in any on the voltage rails the desktop will produce a system-specific LED / Power button code and fail to complete POST.

WLAN & WWAN Overview A wireless local area network (WLAN) is a wireless computer network that links two or more devices using a wireless distribution method (often spread-spectrum or OFDM radio) within a limited area such as a home, school, computer laboratory, or office building. This gives s the ability to move around within a local coverage area and yet still be connected to the network. A WLAN can also provide a connection to the wider Internet. A wireless wide area network (WWAN), is a form of wireless network. The larger size of a wide area network compared to a local area network requires differences in technology. Wireless networks of all sizes deliver data in the form of telephone calls, web pages, and streaming video. A WWAN often differs from wireless local area network (WLAN) by using mobile telecommunication cellular network technologies such as LTE, WiMAX (often called a wireless metropolitan area network or WMAN), UMTS, CDMA2000, GSM, cellular digital packet data (CDPD) and Mobitex to transfer data. It can also use Local Multipoint Distribution Service (LMDS) or Wi-Fi to provide Internet access. These technologies are offered regionally, nationwide, or even globally and are provided by a wireless service provider. WWAN connectivity allows a with a laptop and a WWAN card to surf the web, check email, or connect to a virtual private network (VPN) from anywhere within the regional boundaries of cellular service. Various computers can have integrated WWAN capabilities. Wireless/WWAN Antenna Routing When installing the display assembly or system board on the system, the wireless and WWAN antennae (cables) need to be routed correctly into the routing channels on the system board. For models shipped with a wireless card only, always ensure protective sleeves are used to isolate the antenna connectors before reassembling the system. USB Universal Serial Bus (USB) simplifies the connection between host computer and peripheral devices such as mice and keyboards, external hard drive or optical devices, Bluetooth and many more peripheral devices. USB 1.0 = 1996 - 1.5 Mbps Low Speed USB 1.1 = 1998 - 12 Mbps Full Speed USB 2.0 = 2000 - 480 Mbps High Speed USB 3.0/3.1 gen 1 = 2010 - 5Gbps - Super Speed Connector Types Type-A = Most cables have a type-A connector on one end, most peripherals (such as keyboards and mice) have a type-A connector, personal computers usually have multiple type-A ports, and many other devices and power adapters use a type-A port for data transfers and/or charging. Type-B = An almost square connector, mostly used for printers and other powered devices that connect to a computer. Mini-USB = The standard connector type for mobile devices before the micro-USB type came along. As its name suggests, mini-USB is smaller than regular USB, and is still used in some cameras that have non-standard connectors. Micro-USB = The current standard for mobile and portable devices. It has been adopted by virtually every manufacturer except Apple. Type-C = A reversible cable that promises higher transfer rates and more power than previous USB types. It’s increasingly being adopted as the standard for laptops and even some phones and tablets. It’s smaller, it’s reversible, it’s fast and it can both receive and provide a lot more power than previous versions of USB. -Thunderbolt™ is a revolutionary I/O technology that s high resolution displays and high-performance data devices through a single, compact

port. It sets a new bar for performance, flexibility, and simplicity. -Thunderbolt™ is a hardware interface that allows for the connection of external peripherals to a computer. It uses the same connector as Mini DisplayPort (MDP). Thunderbolt™ combines PCI Express (PCIe) and DisplayPort (DP) into one serial signal alongside a DC connection for electric power, transmitted over one cable. Up to six peripherals may be ed by one connector through various topologies. HDMI Overview HDMI (High-Definition Multimedia Interface) is an industry-ed, uncompressed, all-digital audio/video interface. HDMI provides an interface between any compatible digital audio/video source, such as a DVD player, or A/V receiver and a compatible digital audio and/or video monitor, such as a digital TV (DTV). The intended applications for HDMI TVs, and DVD players. The primary advantage is cable reduction and content protection provisions. HDMI s standard, enhanced, or high-definition video, plus multichannel digital audio on a single cable. Advantages of HDMI •Quality HDMI transfers uncompressed digital audio and video for the highest, crispest image quality. •Low-cost HDMI provides the quality and functionality of a digital interface while also ing uncompressed video formats in a simple, cost-effective manner. •Audio HDMI s multiple audio formats from standard stereo to multichannel surround sound. •HDMI combines video and multichannel audio into a single cable, eliminating the cost, complexity, and confusion of multiple cables currently used in A/V systems. •HDMI s communication between the video source (such as a DVD player) and the DTV, enabling new functionality. HDMI 1.4 Some of the features of HDMI 1.4 are: •HDMI Ethernet Channel - Adds high-speed networking to an HDMI link, allowing s to take full advantage of their IP-enabled devices without a separate Ethernet cable. •Audio Return Channel - Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system, eliminating the need for a separate audio cable. •3D - Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications. •4K - Enables video resolutions far beyond 1080p, ing nextgeneration displays that will rival the Digital Cinema systems used in many commercial movie theaters. •Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings based on content type. •Additional Color Spaces - Adds for additional color models used in digital photography and computer graphics. •HDMI Micro Connector - A new, smaller connector for phones and other portable devices, ing video resolutions up to 1080p. •Automotive Connection System - New cables and connectors for automotive video systems, designed to meet the unique demands of the motoring environment while delivering true HD quality. Bluetooth Overview Bluetooth distances (PANs). Bluetooth

(BT) is a wireless technology standard for exchanging data over short from fixed and mobile devices, and building Personal Area Networks is a standard wire-replacement communications protocol primarily designed

for low-power consumption, with a short range based on low-cost transceiver microchips in each device. Bluetooth exists in many products, such as telephones, speakers, tablets, media players, robotics systems, handheld, laptops and console gaming equipment, and some high definition headsets, modems, and watches. The technology is useful when transferring information between two or more devices that are near each other in low-bandwidth situations. Bluetooth protocols simplify the discovery and setup of services between devices. Bluetooth Versions 3.0 25 Mbit/s 4.0 25 Mbit/s 5 50 Mbit/s

30 feet - 10 m 200 feet - 60 m 800 feet - 240 m

Summary Review Points

You will now be able to: ⇒ Identify different types of power adapters. ⇒ Identify different types battery. ⇒ Describe the features of a processor. ⇒ List the different types of memory. ⇒ List the different types of display. ⇒ Describe the features of touch and non-touch displays. ⇒ List the difference between WLAN and WWAN. ⇒ List the different types of USB.

Goals and Objectives Goal Statement: This course is designed to provide the fundamental knowledge required for Dell Field Service Technicians for the Dell products troubleshooting. Objectives: By the end of this course you should be able to: •List most commonly occurring system issues and fixes. •List System specific "Need to Know" callouts. What is in it for me? Learning the key callouts help you resolve customer queries efficiently and quickly, hence improving Customer Experience. Note: This course is designed in a modular format. You need to complete all modules and the assessment to get course credits. This is not a voice-enabled course. Chassis Service Tag Location The Service Tag and Express Service Code for the Dell™ Latitude™ 3380 are at the bottom base of the computer. Chassis Bottom View: 1. Service Tag 2. Express Service Code Service Tag Update Technicians will need to ensure that the Service Tag is correctly entered, after replacing the system board. Note: The service system board comes with an empty service tag value. Upon entering the

BIOS, the field service technician is only allowed one chance to input the correct service tag. Once the value is entered, the field becomes read-only. A new system board needs to be dispatched if there is a need to change the service tag value. Note: System MUST be connected to a powered AC Adapter. Selecting Model Name and Service Tag Technicians will need to ensure that both the Service Tag and Model Name is correctly entered, after replacing the system board. 1. Setting the Service Tag Step Step Step Step Step

1 2 3 4 5

. . . . .

The following screen is displayed, upon powering on the system. Click BIOS Setup. Input the Service Tag of the system and press Enter Click Yes to save the Service Tag, then click Apply. Click Yes and press Exit. The system reboots.

2. Selecting Model Name Step 1 . A setup selection screen will be prompted with the System Model Name options after the system is powered on upon replacing the system board replacement. Step 2 . Check the system model from underneath the system. You may also refer to the information on the Dispatch Ticket or Service Tag information on Delta for System Model Name. Step 3 . Select the correct option, save, and reboot. Enter BIOS to confirm that the system showing the correct System Model Name selected. XPS Badge System Badge The System Badge on XPS 13/9360 cannot be removed. You can only open it to access the Service Tag information. There is a magnet, which holds the system badge in place. Note: Use a plastic scribe to open the System Badge. General Safety Best Practices: Packing/Repacking General Guidelines Dell’s Field Service Technicians can use the ESD best practices to provide safe and damage-free servicing. •Start the troubleshooting process before opening a part’s sealed packaging. •If you have received more than one part, the failed component before opening a part’s packaging. •Many issues can be addressed with the latest version of BIOS. When possible, always and install the latest BIOS revision before troubleshooting. •It is vital to the fix. Take extra care to ensure that the problem is solved after troubleshooting and that no other problem exists. •Always check and confirm the Service Tag to ensure that you are servicing the correct system. Repackaging: Parts Unpacking •Do not break the tamperproof seal on the ESD bag unless you intend to install the part immediately. •Handle all parts, including system boards, cards, HDD, and so on, by lifting and handling by the edges or sides. Avoid touching the surfaces or bottoms of the

parts. • the part. If you have questions, Dell Technical . •Place the box on a secure surface, and break the tamperproof seal with a safe tool. Carefully open the package’s top or lid. •Inspect the foam and confirm that the part was packaged correctly. Remove the upper layer of foam from the box. •If the part in the box was secured properly without visible damage, continue with the next steps. •Using approved ESD procedures, carefully remove the part from the box by lifting it by the edge or side. If needed, place the part on a secure ESD surface. Never stack parts on top of each other. •If the part has visible damage, do not use it. technical to dispatch another part. Then return it with a description of the damage. Repackaging: LCD Module •If a part must be returned to Dell, repackage it in the same manner in which it was received. •Insert the unit into new ESD bag. Fold the ESD bag to the front, and place the first PPID package label on the bag. Ensure that the label position is placed evenly on the three surfaces. •For repacking, use the same box the part arrived in, with foam inserts. Ensure that the box has the bottom packaging foam and the side packaging foam inserts. •Place the LCD unit into the box enclosed with the foam packing. Fold the excess portion of the ESD bag to the back and place the in the box facing down. •Apply the final foam insert on top of the unit. Close the box top, and insert the lid tabs into the slots on the left and right edges. Complete the traveler (sticker) if necessary. •Place any extra parts between the upper covering foam insert and the box lid. Only small service kit parts such as cables, inverters, and converts are allowed. Use a plastic bag if available. WARNING: Every Dell part has a unique PPID with barcode. LCD Handling •When handling LCDs, always handle them from their sides or edges with both hands. •Never lift or handle an LCD with a single hand. •Never handle an LCD from top or bottom. •Never apply pressure to the rear side of an LCD. •Never place objects on the surface of an LCD. Touch Control Board While repacking an LCD assembly for AIO LCD service parts, always return the touch boards with the LCD assembly. Ensure to pack the old/faulty LCD assembly and Touch Control Board before returning them. Touch Control Board repackaging steps: 1 Pack the LCD assembly in the large anti-static bag. 2 Pack the Touch Control Board in the smaller bubble wrap. 3 Stick the Touch Control Board bubble wrap to the LCD assembly packaging. 4 Ensure that the Dell logo is closer to the open side of the box. Note: You can reuse existing packaging material received with the new replacement parts. Repackaging: Printed Circuit Board Assembly (PCBA) •Repackage parts that are returned to Dell in the same manner in which they were received. •Carefully insert the board into the ESD bag, ensuring components are not pulled or knocked off. •Fold the top part of the ESD bag and retape it.

•Pack the board into the foam inserts of a Dell-approved box, with the bottom of the board down and the surface of the board up. that the PPID sticker is placed on top. •Place the covering foam over the unit. Close the box top, and insert the lid tabs into the slots on the left and right edges. •Place any extra parts between the upper covering foam insert and the box lid. Only small service kit parts, such as cables, inverters, and converts are allowed. Use a plastic bag if available. •Ensure that ESD methods are applied when handling PCBAs, since they are susceptible to handling damage. PCB handling System boards returned from the field have been root-caused with ESD damage and hairline cracks found around the neck area of the PCBs. •During disassembly and repackaging, technicians are reminded to practice caution when handling the system boards. Avoid touching the surface or bottom of the PCB. Instead, handle the part by lifting and holding it from the edges or sides. •Always use approved ESD procedures when handling the system board. Do not hold it by the neck, which is the area outlined in the diagrams below, It would result in hairline cracks. Processor (U) Handling Best Practices for U Handling •Grasp the processor with your thumb and index finger along the top and bottom edges. •Do not touch the processor’s sensitive s. The socket has cutouts for your fingers to fit in. •Carefully place the processor into the socket body vertically. •Do not tilt or roughly shift it into place, as that damages the socket s. Repackaging Parts that are returned to Dell should be repackaged in the same manner in which they were received. Electrostatic bags, socket covers, and LCD protective materials such as the Mylar screen covers are examples. Also, some system boards are shipped with daughter board to avoid transit damage back to Dell. Example below gives an overview about repackaging issue common to desktops: Every dispatched system board has ZIF socket T cover installed to protect the pins on the system board when shipped for repair. All field technicians must return the defective system board with the cover properly attached to the Socket T, on the service board. This is to prevent the pins from being damaged during transportation. Best Practices: General Categories System Board Replacement: Service Tag Utility Dell’s Field Service Technicians can use the general category of best practices to provide an effective Field Service with superior customer experience. •Always reset the Service Tag after a system board replacement. Ensure that you enter the Service Tag information correctly. •Replaced system boards allow the Service Tag to be entered without a BIOS CD. (The Windows 8 OS system must have BIOS set to UEFI mode.) •Follow these steps to enter a Service Tag: •Press after start up to enter BIOS. (This boots directly into BIOS Service Tag field in few models.) •Navigate to the Maintenance field, enter the Service Tag, and confirm it. •If the Maintenance field is not present, navigate to System Info and then the Security Info field to enter the Service Tag. (Older products may be supplied with a BIOS CD. If supplied, the BIOS CD should be used.) Windows 8.1 / 10 Digital Product Key (DPK) Handling

Reactivating Windows after a System Board Replacement •After replacing the system board, Field Service Technicians should give the Digital Product Key (DPK) card hard copy to the customer. They must be advised to retain it. •In case, the customer is not available, the technician should place the DPK card at a prominent location on the computer. This ensures that the customer sees the instructions and enters the product key. •To access the DPK-related training for Windows 8 through Educate Dell, go to Windows 8 Training Content. https://educate.dell.com/Saba/Web_wdk/Field/content/contentrepository/Launch.rdf? title=&id=cninv000000000001856&callback=callback1033 •To access the DPK-related training for Windows 10 through Educate Dell, go to Windows 10 Training Content. https://educate.dell.com/Saba/Web_wdk/Field/content/contentrepository/Launch.rdf? title=&id=cninv000000000038514&callback=callback1033 COA Label Replacement (for Windows 7) Few Dell notebooks or laptops are shipped with the original Windows 7 COA label pasted on the bottom base. •Dispatching the bottom base as a replacement does not transfer the original COA label. •Technical must dispatch a replacement COA label by selecting the part number T8912 (SVC,COA,REPLACEMENT,OS). •A mail is triggered to the customer’s physical address explaining the process of COA label replacement, along with a replacement label. •The DSP technician must then copy/write the original value of the Windows 7 COA to the replacement COA label. Then the technician must give it to the customer or paste it back on the new replacement bottom base. Hardware U On-Site Handling Intel Processor Handling and Installation: ESD Sensitivity •Use standard ESD handling practices. •Unpack processors on ESD mats. All people handling processors should be properly grounded. All work and storage surfaces for processors should be properly grounded. All tools and equipment used to install or rework processors should be properly grounded. •Use proper storage and material transfer. Transfer material using ESD safe trays, not by hand. Remove processors from trays when they are ready to be used. Units should be handled by the substrate edge. Intel Processor Handling and Installation: Processor Handling •Open the boxed processor packaging. •Make sure the processor's protective cover is present and properly secured. (Do not remove the protective cover.) Do not touch processor-sensitive s at any time during installation. Intel Processor Handling and Installation: Processor Installation 1. Lift the processor package from the shipping media by grasping the substrate edges. 2. Scan the processor package's gold pads for any presence of foreign material. If necessary, the gold pads can be wiped clean with a soft lint-free cloth and isopropyl alcohol.

Occasional orange discoloration of package lands due to oxidation has been assessed and confirmed to have no impact on electrical performance, quality, or reliability. Intel Processor Handling and Installation: Processor Installation (Cont.) 3. Locate the connection 1 indicator on the processor that aligns with connection 1 indicator chamfer on the socket. Notice the processor keying features that line up with posts along socket walls. 4. Grasp the processor with your thumb and index finger along the top and bottom edges. (Do not touch the orientation notches.) The socket has cutouts for your fingers to fit into. Intel Processor Handling and Installation: Processor Installation (Cont.) 5. Carefully place the processor into the socket body vertically. Tilting or roughly shifting it into place can damage socket s. Do not use a vacuum pen for installation. 6. that the package is within the socket body and properly connected to orientation keys. Intel Processor Handling and Installation: Processor Installation (Cont.) 7. Close the socket (see image below): Some system boards use a two-lever latching mechanism. Refer to your product's reference material for specifics. 1. Gently lower the load plate 2. Make sure the load plate's front edge slides under the shoulder screw cap as the lever is lowered. 3. Latch the lever under the top plate's corner tab, being cautious not to damage the motherboard with the tip of the lever. Intel Processor Handling and Installation: Removing the Processor 1. Open the socket: a. Disengage the load lever. b. Open the load plate. 2. Remove the processor package, by holding the top and bottom edges, or by using a vacuum pen. 3. Keep the processor horizontal and remove it with a vertical motion to avoid damaging the socket s. 4. Place the processor in a specially designed tray or ESD retainer for storage. Do not place directly on table resting on gold lands. Intel Processor Socket Visual Inspection 1. Orient the load lever on the left side and the hinge to the load plate on the top. 2. Hold the load plate open with your thumb as you hold both sides of the board. 3. Hold the board 6–12” away from face perpendicular to your viewing angle. 4. Scan the s while tilting away approximately 15–45° and rotating about 15–45° from perpendicular to change the viewing angle several times. 5. Light should create a reflection moving back and forth across the s, and changes in the light pattern are indications of shifted or damaged s. Intel Processor Socket Visual Inspection (Cont.) Replace the motherboard if the socket fails visual inspection for damage to any socket pins. Thermal Interface Material (TIM) and Grease Removal from U TIM and Grease Removal Process: 1. Remove the heatsink from the socket. 2. Gently push loose the TIM to the center of the processor—figures 2 and 3. 3. Remove the pieces with dry cloth—figure 4. 4. Wipe with dry, lint-free cloth to remove most of the material—figure 5. 5. Wet another lint-free cloth with isopropyl alcohol (IPA) and wipe to clean the remaining material—figure 6. 6. Be careful to remove material from gaps between the processor and load plate.

7. For thermal grease removal, use steps 4–6. The load lever must stay engaged during this process, or it will cause damage to the socket s. Failure Type 1: Upward Bent is bent backward upon itself. Inspection Criteria: tips must fall within 0.2 mm. (+/- 0.1 mm or +/- 1 thickness) of the plane defined by the tips. Most common in the first two rows and columns around the center cavity. failure Type 2: Upward/Downward Shift tip position is shifted (up or down) more than one thickness. Inspection criteria: tips must fall within 0.2 mm (+/- 0.1 mm or +/- 1 thickness) of the plane defined by the tips. failure Type 3: X Axis Shift is shifted sideways (X direction) Reject s when the tip is shifted more than ¾ of the width of the Note: Red circle indicates out of alignment failure Type 3: Y Axis Shift Type 3 (continued) is shifted sideways (Y direction) Reject s when the tip is shifted more than ¾ of the width of the Red circles indicate out of alignment New Processor and Heatsink Module (PHM) What Is a PHM? In late 2016, Dell will begin shipping servers with new PHM technology. By mid 2017, all servers shipping from Dell will use this technology. PHM changes the way the processor, heatsink, and system board disassemble. What follows here is the earliest version of this technology, but new releases in 2017 will have only minor changes. The PHM is a combination of a processor, processor carrier, and heatsink into a single unit before installation. New Processor and Heatsink Module (PHM) – Things to Take Note To remove the PHM, the removal sequence starts in the reverse order, with screws 4, 3, 2, and 1. To reassemble the PHM, the screw sequence is 1, 2, 3, and 4. You can refer to the heatsink label on the heatsink to identify the screw numbering. Failure to follow the correct removal sequence may damage the processor and the socket. New Processor and Heatsink Module (PHM) – Disassembly and Reassembly Process Tools Needed •Torx screwdriver (T30) •Flathead screwdriver Removing the PCM 1. Using the Torx screwdriver, loosen the screw identified with number 4 on the heatsink label. To remove the processor and heatsink module, the removal sequence starts in the reverse order, with screws 4, 3, 2, 1. Failure to follow the correct removal sequence may damage the processor and the socket.

2. Loosen the other PHM retention screws following the numbered sequence on the label on the heatsink. 3. Lift the PHM away from the system board, and set the heatsink aside with processor side facing up. New Processor and Heatsink Module (PHM) – Disassembly and Reassembly Process Removing the Processor from the PHM 1. Place the heatsink with the processor s facing up. 2. Insert the flat-blade screwdriver into the slot and twist the screwdriver to break the seal created by the thermal paste. 3. Push the retaining clips on the processor bracket to unlock the bracket from the heatsink. 4. Lift the bracket and processor away from the heatsink, and place the processor with the s facing down into the processor tray. 5. Flex the outer edges of the bracket to release the processor from the bracket. New Processor and Heatsink Module (PHM) – Disassembly and Reassembly Process Installing the Processor to the PHM 1. Flex the outer edges of the bracket around the processor ensuring that the processor is locked into the clips on the bracket. 2. Place the heatsink on the processor and push down until the bracket locks onto the heatsink. Ensure that the two guide-pin holes on the bracket match the holes on the heatsink. New Processor and Heatsink Module (PHM) – Disassembly and Reassembly Process Installing the PHM 1. Place the PHM on the processor socket Ensure that the two guide pins match the guide holes on the PHM. 2. Using the Torx screwdriver, tighten the first screw of the four heatsink retention screws The screws must be tightened in this order: 1, 2, 3, and 4. 3. Tighten the PHM screws following the sequence of the label on the heatsink Failure to follow the correct sequence may damage the processor and the socket. New Processor and Heatsink Module (PHM) – Disassembly and Reassembly Process (Video Demo) Play the video and learn how to disassemble, replace, and reassemble the PHM.

vPro AMT The Latitude E7270/E7470 system boards are shipped in manufacturing mode, and the or service provider must select the manageability option upon first boot. There are five manageability options that may be seen on a customer's order, according to the original configuration purchased. •1: AMT_DASH_VPRO_or_SBA •3: MANAGEABILITY ENGINE (ME) DISABLED •4: AMT_DASH_VPRO: NO_TLS (NOT FOR USA) •6: MANAGEABILITY ENGINE (ME) LOCKOUT •7: NON_VPRO System Board Installation If a new system board is replaced on the Latitude system, it must be configured with the correct management mode. Follow the instructions below: 1. Replace the system board per the disassembly and reassembly procedures. 2. Remove the bottom door to read the white label attached to the inside the bottom door. The label can also be found at the bottom door's exterior or at the center of the bottom door. This label has a number on it that indicates the management mode you must choose to get the appropriate configuration for the

system. Examples of the labels include: 3. Record the management mode number for later use. Record the management mode number for later use. 4. Replace the bottom door, and turn on the system. The manufacturing mode will boot to the screen shown below. The screen displays for five to six seconds. Do not press anything! 5. Do not press anything to allow the system to go to the Service Menu. Do not press anything to allow the system to go to the Service Menu, as shown below: 6. Input the AMT selection and Service Tag and/or asset tag entry. Tag and/or asset tag entry. After the OK button is clicked, the system will go to the verification screen, as shown below. Click Apply Changes when the entries are confirmed correct, and the system reboots.WARNING: Technicians must key in the correct Service Tag on the first and only attempt. If the Service Tag is keyed in incorrectly, another system board must be dispatched and replaced. There is no other option to fix this. 7. The system reboots The system reboots with the following error screen: China HDD protection Dell HDD Protection is China only solution that is applicable on OptiPlex Desktop. It is a remote PC protection and management tool that allows to use a master PC to quickly deploy OS images to other client PCs and manage/protect remote client PCs without a need for an extra server (the master PC plays the server role). When replacing system board, technicians must refer to the label for China HDD Protection information on the back of the side cover, to determine if the customer has purchased China HDD protection and set the option accordingly in SMMM. The China HDD Protection label is similar to the iAMT Vpro label. WLAN Setting How to Set Up an Intel WLAN Card Country Code, Service Tag, and Marketing Name Step 1 Upon replacing the system board, turn on the system. A service menu will appear. Only check the item box if the system is shipped in Indonesia. Step 2 Enter the Service Tag information. Step 3 Click OK Step 4 Click Apply Changes. System Board Jumper The service system board jumper must be set to to function normally. As long as the jumper stays at Service Mode, all values set in the BIOS is not saved, and the system does not exit the manufacturing mode with an error prompt indicating that jumpers are incorrect. Prying Access Latitude 5480 systems information is only used as example in this training module. Base cover disassembly (pry points) For the Latitude 5480, on-site technicians should take care to remove the base cover carefully. The images show the location for prying the base cover from the system after loosening the base cover screws. Figure 1. Latitude 5480 Display bezel (non-touch) removal (pry points) For the Latitude 5480, ensure to remove the display bezel (non-touch) carefully. The display bezel features recesses near the hinges which can be used to begin the prying process. The image shows the location for prying the display bezel (non-touch) from the computer: Figure 1. Display bezel (non touch) removal (pry points)

Screw Spec Labels and Indicators Consider the Dell Inspiron 20 3000 as an example. The image shows how a hard drive should be removed. The screws that secure the hard-drive assembly and display assembly are shown. Consider the Dell Vostro desktop as an example. The image shows how to remove a Power Supply Unit (PSU). The screws that secure the PSU are shown. Thermal Pads Reusability Latitude 5285 system's information is only used as an example in this training module. A gasket or thermal pad is required for proper installation of a WWAN card or M.2 PCIe secondary storage SSD on a system board. Do not discard the thermal pads on chipsets, SSD, or add-on daughterboard as they are reusable. Conductive Tapes Latitude 5285 system's information is only used as an example in this training module. Do not discard the conductive tapes. Practice caution and only peel the tape to an extent where you can access/replace the part. Do not damage the tape, reapply it back to the same position after replacing the part. Replace the tape only if specific instructions and extra tapes are included. Aluminium Foils and Protective Shielding Latitude 5285 system's information is only used as an example in this training module. Practice caution during removal/install of the shield. The shielding covers are fragile and can easily deform. RMA Shim Overview The Dell Chromebook 3380 utilizes a unique service tool known as RMA Shim. In the event of the System Board replacement, it is important that service technicians run RMA Shim to write the service tag and reload the Chrome OS. Note: Updating the Service Tag is only required when the system board is replaced. Technicians will need to run the RMA Shim, after replacing the System Board. The RMA Shim tool can be categorized into two main modules: Shop Floor •Shop Floor is required to write VPD (Vendor Product Data) info to the System Board. (Service Tag, Model Name, Regional settings, etc.) •The Service Tag will be auto-populated over to the Serial Number (Service Tag = Serial Number). •The write-protect screw only needs to be removed when running Shop Floor and writing VPD info. Google Required Tests •Google Required Test will reboot the system, wipe all content on the SSD (HDD), reloads the base version of the Chrome OS and put the system into "Shipping Mode" •Shipping mode means, the system can only be turned on by connecting it to the Power Adapter. The will also be presented with the OOB welcome screen. •Google Required Tests will prompt an error and not run unless the write-protect screw is inserted back into the System Board. RMA Shim USB Key The RMA Shim USB Key is dispatched or bundled together with the replacement System Board service parts. The RMA Shim software on the USB Key is the Service/Lite version which only

contains the Shop Floor and Google Required Tests Module. TPM 2.0 Installation Beginning October 2015, new systems shipped with Windows 10 features a new format of TPM 2.0. TPM 2.0 improves and provides added security. However, this has resulted to complexity on service spares MB, as two sets of different MB must be maintained. 1. MB with TPM 1.2 for Windows 8.1 or Windows 7 2. MB with TPM 2.0 for Windows 10 In order to address the complexity of multiple MB parts, only service MB with TPM 1.2 is stocked. For Systmes with Windows 10, upon replacing the MB, the TPM 2.0 utility must be ed from .dell.com. The act of updating TPM 2.0 is the customer's responsibility. Failure to update to TPM 2.0 does not cause any major functionality impact to the system; however, without it, some of the added advance security features cannot be enabled via Windows 10. At that point, the customer can still update their system to TPM 2.0. DSP technicians are encouraged to help customers TPM 2.0 when possible, but the risks of unavailable Internet connection and other restrictions have been taken into . As such, this approach is flagged as a "best-effort basis." Installation Instructions of the Dell TPM Update Utility for Windows/DOS Clear the TPM (See Notes 2, 3, and 4) 1. Before running the TPM update utility, clear the TPM owner. Note: 1. You must provide a bootable DOS USB key. This executable file does not create the DOS system files. 2. If BitLocker is enabled on your system, make sure you suspend its encryption before updating the TPM on a BitLocker-enabled system. 3. The TPM must be on and enabled in BIOS Setup, and the TPM must not be owned. If the TPM is owned, go to BIOS Setup and clear the TPM before proceeding. You may need to run TPM.msc to re-initial the TPM under the Windows OS. 4. When the TPM ownership is cleared, some operating systems will automatically take ownership of the TPM on the next boot (TPM auto-provisioning). This feature will need to be disabled in the OS to proceed with the update. Disable TPM autoprovisioning in Windows (See Note 4) 1 Boot to Windows 2 Launch the PowerShell Command window in Mode. 3 At the Powershell command prompt, execute the following command: > DisableTpmAutoProvisioning 4 Confirm the following results: Autoprovisioning: Disabled 5 Reboot the system to BIOS Setup by pressing 6 Navigate to Security > TPM 12/2.0 security. 7 Click the Clear checkbox and select Yes at the prompt to clear the TPM settings (You can skip that if the item is grayed out.) 8 Click Exit to save changes 9 Reboot the system to Windows 10 Confirm that the TPM is not owned. The TPM must no longer be automatically provisioned by Windows. 11 When the TPM update is finished, launch the PowerShell command in Mode to re-enable the auto provisioning: > Enable-TpmAutoProvisioning 12 Confirm the following results: AutoProvisioning: Enabled Run the TPM update utility from a Windows environment 1 Go to the location where the file was ed, and double-click the new file. 2 The Windows system auto-restarts and updates the TPM during the system startup. 3 When the TPM update is finished, the system auto-reboots to take effect.

Run the TPM update utility from a DOS environment, if legacy boot mode (non-Windows s) 1 Copy the ed file to a bootable DOS USB key. 2 Turn on the system, press , select USB Storage Device, and boot to the DOS prompt. 3 Run the file by typing the copied file name where the executable is located. 4 The DOS system will auto-restart and update the TPM during the system startup. 5 When the TPM update is finished, the system auto-reboots to take effect. Run the BIOS update utility from a DOS environment if UEFI boot mode (non-Windows s) 1 Copy the ed file to a bootable DOS USB key. 2 Turn on the system, and then go to BIOS Setup by pressing . Then go to General > Boot Sequence > Boot List Option. 3 Change UEFI to Legacy from Boot List Option. 4 Click Apply and Exit to save changes, and then reboot the system. 5 Press , select USB Storage Device, and boot to the DOS prompt. 6 Run the file by typing the copied file name where the executable is located. 7 When the TPM update is finished, the system auto-reboots to take effect. 8 Go to BIOS Setup by pressing . Then go to General > Boot Sequence > Boot List Option. 9 Change Legacy to UEFI Boot List Option. 10 Click Apply and Exit to save changes, and then reboot the system. To check the TPM mode in BIOS Setup s can check the TPM version in BIOS Setup under the security option, as shown below. Using Dell Command Update Dell Command Update can be used to automatically check online for latest BIOS, driver, firmware, and Dell applications. Checking for updates A report of detected updates is shown after the initial check is complete. They are segregated as Critical, Recommended, and the Optional updates. If the Automatically restart system is checked, the updates are installed and the system is restarted when necessary to make it an automated process. All you have to do is click Install to start the process. Custom install If you ever want not to install all available updates but install only those you prefer, click Customize. And, in the individual listing, select the ones that you prefer to install. You can also select to Show hidden updates. Once you have selected the updates, click Close > Install. Click the Customize button to view the Customize Selection option. Scheduling and reviewing updates Click the tabs below to learn more about scheduling update checks and viewing update history. Scheduling update checks One of the advanced features of Dell Command Update Utility is the ability to schedule update checks. You can access it by clicking the Settings icon and selecting Schedule. Choose the frequency as per preference and click OK. To revert to default options, click Restore Defaults. Viewing update history Another feature of Dell Command Update Utility is reviewing the Update History, which is available on the left pane of the home page. This displays the status of

the update, whether it is installed or not, date, and the version number of the driver or application. Using Dell Command Update to install drivers after OS reinstall Checking for driver updates will not work if the operating system is reinstalled, as the IDs for the internal devices are not available. Instead, you must choose an advance feature available in Dell Command Update Utility to install all the required drivers. After OS is reinstalled, open Dell Command Update Utility. Under Advanced Driver Restore for Windows Reinstallation, click the link to and install the complete driver library. Click in the box to show the installation progress page. Manual OS driver CAB file usage The customer must extract the driver cab for the specific unit onto a USB key or other location. By specifying the location, the CAB file can be loaded to baseline the Device Manager and prepare the system for a full update “check.” You can change the location used by the Advanced Driver Recovery under Settings > Advanced Driver Restore > Use the specified driver library. http://en.community.dell.com/techcenter/enterprise-client/w/wiki/2065.dell-commanddeploy-driver-packs-for-enterprise-client-os-deployment Driver version reporting You can export a complete report of all current driver firmware and BIOS under System Information. Click Export > Select the location > Save. Then open the file and select As an XML table, and click OK > OK. This report can be used to view all the drivers and their version. Summary Review Points In this module, we learned that: •Dell’s Field Service Technicians can use all safety precautions during their service visits, troubleshooting to avoid any damage or electrical surges for internal components or peripherals •Dell’s Field Service Technicians can use the ESD best practices to provide safe and damage-free servicing. •Every Dell part has a unique PPID with barcode. •Older Dell products may be supplied with a BIOS CD. If supplied, the BIOS CD should be used. •Thermal grease / thermal paste / thermal compound is a substance used to manage better heat conduction between two surfaces and is primarily used between a microprocessor and a heat sink. •After replacing the System Board, the Field Service Technician must enter the correct Service Tag value. Once the value is entered, the field becomes read-only. •In the event of a System Board replacement, it is important to run RMA Shim to write the Service Tag and reload the Chrome OS. The RMA Shim tool has two modules Shop Floor and Google Required Tests. •Starting October 2015, systems shipped with Windows 10 feature a new TPM 2.0 utility that improves and provides security. It can be ed from .dell.com

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