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Dell G16 7620, Service Manual, Page: 44 / 79

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Dell G16 7620 Service Manual Download Page 44

6. Touchpad cable
7. Keyboard-controller board cable
8. Left-fan cable
9. Power-button cable

The following image indicates the location of the system board and provides a visual representation of the removal procedure.

Steps

1. Remove the two (M2x4) screws that secure the Type-C bracket to the system board and lift the bracket off the system

board.

2. Peel the tape that secures the display-cable connector latch to the system board.
3. Open the latch and disconnect the display cable from the system board.
4. Disconnect the DDS (Dynamic Display Switch) cable from the system board.
5. Disconnect the power-adapter port cable from the system board.
6. Peel the power-adapter port cable off the system board.
7. Disconnect the right-fan cable from the system board.
8. Remove the two screws (M2x2) that secure the right fan to the palm-rest and keyboard assembly.
9. Disconnect the speaker cable from the system board.
10. Open the latch and disconnect the touchpad cable from the system board.
11. Open the latch and disconnect the keyboard-controller board cable from the system board.
12. Disconnect the left-fan cable from the system board.
13. Open the latch and disconnect the power-button cable from the USB board.
14. Remove the four screws (M2x4) that secure the system board to the palm-rest and keyboard assembly.
15. Remove the screw (M2x2) that secures the system board to the palm-rest and keyboard assembly.
16. Lift the system-board assembly off the palm-rest and keyboard assembly.

44

Removing and installing components

Summary of Contents for G16 7620

Page 1: ...Dell G16 7620 Service Manual Regulatory Model P105F Regulatory Type P105F012 P105F011 June 2022 Rev A00 ...

Page 2: ...damage to hardware or loss of data and tells you how to avoid the problem WARNING A WARNING indicates a potential for property damage personal injury or death 2022 Dell Inc or its subsidiaries All rights reserved Dell Technologies Dell and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners ...

Page 3: ...ery 17 Solid state drive 18 Removing the M 2 2280 solid state drive 18 Installing the M 2 2280 solid state drive 19 Wireless card 20 Removing the wireless card 20 Installing the wireless card 21 Memory module 23 Removing the memory module 23 Installing the memory module 23 Speakers 24 Removing the speakers 24 Installing the speakers 25 Touchpad 26 Removing the touchpad 26 Installing the touchpad 2...

Page 4: ...t and audio board 53 Removing the ethernet and audio board 53 Installing the ethernet and audio board 54 Power button 55 Removing the power button 55 Installing the power button 56 Palm rest and keyboard assembly 57 Removing the palm rest and keyboard assembly 57 Installing the palm rest and keyboard assembly 58 Chapter 3 Drivers and downloads 60 Chapter 4 System setup 61 Entering BIOS setup progr...

Page 5: ...M BIST 76 LCD Built in Self Test BIST 77 Recovering the operating system 77 WiFi power cycle 77 Drain residual flea power perform hard reset 78 Real Time Clock RTC reset 78 Chapter 6 Getting help and contacting Dell 79 Contents 5 ...

Page 6: ...r computer For more safety best practices see the Regulatory Compliance home page at www dell com regulatory_compliance WARNING Disconnect your computer from all power sources before opening the computer cover or panels After you finish working inside the computer replace all covers panels and screws before connecting your computer to an electrical outlet CAUTION To avoid damaging the computer ens...

Page 7: ...may cause degradation of memory integrity intermittent memory errors etc The more difficult type of damage to recognize and troubleshoot is the intermittent also called latent or walking wounded failure Perform the following steps to prevent ESD damage Use a wired ESD wrist strap that is properly grounded The use of wireless anti static straps is no longer allowed they do not provide adequate prot...

Page 8: ...y handling any hardware components ESD Packaging All ESD sensitive devices must be shipped and received in static safe packaging Metal static shielded bags are preferred However you should always return the damaged part using the same ESD bag and packaging that the new part arrived in The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the orig...

Page 9: ...sure that the correct number of screws and correct screw type is restored when the component is replaced NOTE Some computers have magnetic surfaces Ensure that the screws are not left attached to such surfaces when replacing a component NOTE Screw color may vary with the configuration ordered Table 1 Screw list Component Screw type Quantity Screw image Base cover M2x6 4 NOTE Screw color may vary d...

Page 10: ...2x4 2 Keyboard controller board M2x2 1 Type C bracket M2x4 2 System board M2x4 5 System board M2x2 2 USB board M2x4 2 Ethernet and audio board M2x4 2 Power button board assembly M2x2 2 Fan and heat sink assembly M2x4 6 Major components of Dell G16 7620 The following image shows the major components of Dell G16 7620 10 Removing and installing components ...

Page 11: ...splay assembly 12 Palm rest and keyboard assembly 13 Keyboard controller board 14 Wireless card 15 System board 16 Fan and heat sink assembly 17 Power button NOTE Dell provides a list of components and their part numbers for the original system configuration purchased These parts are available according to warranty coverages purchased by the customer Contact your Dell sales representative for purc...

Page 12: ...isites 1 Follow the procedure in Before working inside your computer About this task The following images indicate the location of the base cover and provide a visual representation of the removal procedure 12 Removing and installing components ...

Page 13: ...Removing and installing components 13 ...

Page 14: ...t the base cover off the palm rest and keyboard assembly NOTE The following steps are applicable only if you want to further remove any other component from your computer 4 Using the pull tab disconnect the battery cable from the system board 5 Turn your computer over and press the power button for 20 seconds to drain the flea power Installing the base cover Prerequisites If you are replacing a co...

Page 15: ...Removing and installing components 15 ...

Page 16: ...when handling Lithium ion batteries Discharge the battery completely before removing it Disconnect the AC power adapter from the system and operate the computer solely on battery power the battery is fully discharged when the computer no longer turns on when the power button is pressed Do not crush drop mutilate or penetrate the battery with foreign objects Do not expose the battery to high temper...

Page 17: ...ng image indicates the location of the battery and provides a visual representation of the removal procedure CAUTION After removing the battery store the battery cable safely The replacement battery will not be shipped with the battery cable If you want to replace the battery cable it has to be purchased separately Steps 1 Using the pull tab disconnect the battery cable from the system board if it...

Page 18: ...st be purchased separately 4 Connect the battery cable to the system board 5 Adhere the tape to secure the battery cable to the system board Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Solid state drive Removing the M 2 2280 solid state drive Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover Abou...

Page 19: ...olid state drive off the M 2 card slot on the system board Installing the M 2 2280 solid state drive Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image indicates the location of the M 2 2280 solid state drive and provides a visual representation of the installation procedure Removing and inst...

Page 20: ... 5 Replace the two screws M2x4 that secure the thermal shield to the M 2 2280 solid state drive and the system board Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Wireless card Removing the wireless card Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover About this task The following image indicates...

Page 21: ... card 4 Slide and remove the wireless card from the M 2 card slot Installing the wireless card Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image indicates the location of the wireless card and provides a visual representation of the installation procedure Removing and installing components 2...

Page 22: ...hite triangle White Auxiliary black triangle Black 2 Align the notch on the wireless card with the tab on the M 2 card slot and insert the wireless card at an angle into the M 2 card slot 3 Align and place the wireless card bracket on the wireless card 4 Replace the screw M2x4 to secure the wireless card to the system board Next steps 1 Install the base cover 2 Follow the procedure in After workin...

Page 23: ...s on each end of the memory module slot until the memory module pops up 2 Remove the memory module from the memory module slot NOTE Repeat step 1 and step 2 to remove the other memory module if installed on your computer Installing the memory module Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The followin...

Page 24: ...at step 1 to step 3 to install the other memory module if available on your computer Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Speakers Removing the speakers Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover About this task The following image indicates the location of the speakers and provides...

Page 25: ...guides on the palm rest and keyboard assembly 4 Lift the speakers along with the cable off the palm rest and keyboard assembly Installing the speakers Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image indicates the location of the speakers and provides a visual representation of the installa...

Page 26: ...Route the speaker cable through the routing guides on the palm rest and keyboard assembly NOTE Route the speaker cable below the ethernet and audio Do not route the speaker cable over the solid state drive bracket Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Touchpad Removing the touchpad Prerequisites 1 Follow the procedure in Before working ins...

Page 27: ...t to the palm rest and keyboard assembly 5 Lift the touchpad bracket off the touchpad 6 Open the latch and disconnect the touchpad cable from the system board 7 Peel the touchpad cable from the touchpad 8 Remove the two M2x2 screws that secure the touchpad to the palm rest and keyboard assembly 9 Lift the touchpad off the palm rest and keyboard assembly Installing the touchpad Prerequisites If you...

Page 28: ...o the palm rest and keyboard assembly 5 Adhere the touchpad cable to the touchpad 6 Connect the touchpad cable to the system board and close the latch 7 Align and place the routing guide bracket over the touchpad bracket 8 Replace the two M2x4 screws that secure the routing guide to the palm rest and keyboard assembly 9 Route the speaker and antenna cables through the routing guides on the palm re...

Page 29: ...uter Rear cover Removing the rear cover Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover About this task The following image indicates the location of the rear cover and provides a visual representation of the removal procedure Removing and installing components 29 ...

Page 30: ...y from the system board and lift it off the palm rest and keyboard assembly Installing the rear cover Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image indicates the location of the rear cover and provides a visual representation of the installation procedure 30 Removing and installing compo...

Page 31: ...s M2x2 that secure the rear cover to the system board Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Display assembly Removing the display assembly Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Remove the rear cover About this task The following images indicate the location of the display asse...

Page 32: ...cures the display cable latch to the system board 2 Open the latch and disconnect the display cable from the system board 3 Disconnect the DDS Dynamic Display Switch cable from the system board 32 Removing and installing components ...

Page 33: ...e the display assembly hinges to the palm rest and keyboard assembly Installing the display assembly Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image indicates the location of the display assembly and provides a visual representation of the installation procedure Removing and installing com...

Page 34: ...sembly 3 Route the display cable through the routing guides on the palm rest and keyboard assembly along the top side of the computer and into the opening to the right of the HDMI port 4 Turn the computer over 5 Connect the display cable to the connector on the system board and close the latch 6 Adhere the tape that secures the display cable connector latch to the system board 7 Adhere the display...

Page 35: ...indicate the location of the keyboard controller board and provides a visual representation of the removal procedure Steps 1 Open the latch and disconnect the keyboard backlight cable from the keyboard controller board 2 Open the latch and disconnect the keyboard cable from the keyboard controller board 3 Open the latch and disconnect the keyboard controller board cable from the system board 4 Rem...

Page 36: ...hat secures the keyboard controller board to the palm rest and keyboard assembly 3 Connect the keyboard controller board cable to the system board and close the latch 4 Connect the keyboard backlight cable to the keyboard contoller board and close the latch 5 Connect the keyboard cable to the keyboard controller board and close the latch Next steps 1 Install the battery 2 Install the base cover 3 ...

Page 37: ...ort 3 Disconnect the power adapter port cable from the system board 4 Peel the power adapter port cable off the system board 5 Lift the power adapter port and its cable off the palm rest and keyboard assembly Installing the power adapter port Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image...

Page 38: ...Install the base cover 3 Follow the procedure in After working inside your computer System board Removing the system board NVIDIA GeForce RTX 3060 3070 3070 Ti graphics card Prerequisites 1 Follow the procedure in Before working inside your computer CAUTION Before removing the system board give sufficient time for the heat sink to cool down to avoid injury NOTE Replacing the system board removes a...

Page 39: ...s on your system board assembly 1 Display cable 2 DDS Dynamic Display Switch cable 3 Speaker cable 4 Right fan cable 5 Power adapter port cable 6 Touchpad cable 7 Keyboard controller board cable 8 Left fan cable 9 Power button cable The following image indicates the location of the system board and provides a visual representation of the removal procedure Removing and installing components 39 ...

Page 40: ...sconnect the speaker cable from the system board 10 Open the latch and disconnect the touchpad cable from the system board 11 Open the latch and disconnect the keyboard controller board cable from the system board 12 Disconnect the left fan cable from the system board 13 Open the latch and disconnect the power button cable from the USB board 14 Remove the five screws M2x4 that secure the system bo...

Page 41: ...system board NOTE This procedure only applies to computers shipped with a NVIDIA GeForce 3060 3070 3070 Ti graphics card About this task The following image indicates the connectors on your system board 1 Display cable 2 DDS Dynamic Display Switch cable 3 Speaker cable 4 Right fan cable 5 Power adapter port cable 6 Touchpad cable 7 Keyboard controller board cable 8 Left fan cable 9 Power button ca...

Page 42: ...e C bracket to the system board 9 Connect the display cable to the system board and close the latch 10 Adhere the tape that secures the display cable connector latch to the system board 11 Connect the DDS Dynamic Display Switch cable to the system board 12 Connect the power adapter port cable to the system board 13 Adhere the power adapter port cable on the system board 14 Replace the two screws M...

Page 43: ...njury NOTE Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program Make the appropriate changes again after you replace the system board 2 Remove the base cover 3 Remove the battery 4 Remove the rear cover 5 Remove the solid state drive 6 Remove the wireless card 7 Remove the memory module NOTE This procedure only applies to computers shipped with...

Page 44: ...ower adapter port cable off the system board 7 Disconnect the right fan cable from the system board 8 Remove the two screws M2x2 that secure the right fan to the palm rest and keyboard assembly 9 Disconnect the speaker cable from the system board 10 Open the latch and disconnect the touchpad cable from the system board 11 Open the latch and disconnect the keyboard controller board cable from the s...

Page 45: ...d removes any changes that you have made to the BIOS using the BIOS setup program Make the appropriate changes again after you replace the system board NOTE This procedure only applies to computers shipped with a NVIDIA GeForce 3050 Ti graphics card About this task The following image indicates the connectors on your system board 1 Display cable 2 DDS Dynamic Display Switch cable 3 Speaker cable 4...

Page 46: ...Replace the two screws M2x4 that secure the Type C bracket to the system board 10 Connect the display cable to the system board and close the latch 11 Adhere the tape that secures the display cable connector latch to the system board 12 Connect the DDS Dynamic Display Switch cable to the system board 13 Connect the power adapter port cable to the system board 14 Adhere the power adapter port cable...

Page 47: ...ansfer capability of the thermal grease NOTE The heat sink may become hot during normal operation Allow sufficient time for the heat sink to cool before you touch it 2 Remove the base cover 3 Remove the battery 4 Remove the rear cover 5 Remove the solid state drive 6 Remove the wireless card 7 Remove the system board NOTE The system board can be removed as an assembly with the memory modules fan a...

Page 48: ...re replacing a component remove the existing component before performing the installation procedure NOTE This procedure only applies to computers shipped with a NVIDIA GeForce 3060 3070 3070 Ti graphics card About this task The following image indicates the location of the fan and heat sink assembly and provides a visual representation of the installation procedure NOTE If either the system board ...

Page 49: ...rd 2 Install the wireless card 3 Install the solid state drive 4 Install the rear cover 5 Install the battery 6 Install the base cover 7 Follow the procedure in After working inside your computer Removing the fan and heat sink assembly NVIDIA GeForce RTX 3050 Ti graphics card Prerequisites 1 Follow the procedure in Before working inside your computer CAUTION For maximum cooling of the processor do...

Page 50: ...ethernet and audio board and USB board attached NOTE This procedure only applies to computers shipped with a NVIDIA GeForce 3050 Ti graphics card About this task The following image indicates the location of the fan and heat sink assembly and provides a visual representation of the removal procedure Steps 1 Turn the system board assembly over 2 In sequential order 1 2 3 4 5 6 remove the six screws...

Page 51: ...ion of the installation procedure NOTE If either the system board or the heat sink is replaced use the thermal pad that is provided in the kit to ensure that thermal conductivity is achieved Steps 1 Place the fan and heat sink assembly on the system board and align the screw holes on the fan and heat sink assembly with the screw holes on the system board 2 In reverse sequential order 6 5 4 3 2 1 r...

Page 52: ...e 6 Remove the wireless card 7 Remove the system board NOTE The system board can be removed as an assembly with the memory modules fan and heat sink assembly ethernet and audio board and USB board attached About this task The following image indicates the location of the USB board and provides a visual representation of the removal procedure Steps 1 Turn the system board assembly over 2 Remove the...

Page 53: ...stem board and align the screw holes on the USB board to the screw holes on the system board 2 Replace the two screws M2x4 that secure the USB board to the system board 3 Turn the system board assembly over Next steps 1 Install the system board 2 Install the wireless card 3 Install the solid state drive 4 Install the rear cover 5 Install the battery 6 Install the base cover 7 Follow the procedure ...

Page 54: ...s fan and heat sink assembly ethernet and audio board and USB board attached Steps 1 Turn the system board assembly over 2 Remove the two screws M2x4 that secure the ethernet and audio board to the system board 3 Disconnect and remove the ethernet and audio board from the system board Installing the ethernet and audio board Prerequisites If you are replacing a component remove the existing compone...

Page 55: ...ate drive 4 Install the rear cover 5 Install the battery 6 Install the base cover 7 Follow the procedure in After working inside your computer Power button Removing the power button Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Remove the battery 4 Remove the rear cover 5 Remove the solid state drive 6 Remove the wireless card 7 Remove the sy...

Page 56: ...rest and keyboard assembly 3 Lift the power button board assembly off the palm rest and keyboard assembly 4 Lift the power button off the palm rest and keyboard assembly Installing the power button Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following image indicates the location of the power button a...

Page 57: ...Install the system board 2 Install the wireless card 3 Install the solid state drive 4 Install the rear cover 5 Install the battery 6 Install the base cover 7 Follow the procedure in After working inside your computer Palm rest and keyboard assembly Removing the palm rest and keyboard assembly Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Rem...

Page 58: ...tes we are left with the palm rest and keyboard assembly NOTE When replacing the palm rest the solid state drive holder and the touchpad bracket must to be removed from the existing palm rest and transferred to the replacement palm rest Installing the palm rest and keyboard assembly Prerequisites If you are replacing a component remove the existing component before performing the installation proc...

Page 59: ...l the power adapter port 7 Install the speakers 8 Install the wireless card 9 Install the solid state drive 10 Install the display assembly 11 Install the keboard controller board 12 Install the touchpad 13 Install the rear cover 14 Install the battery 15 Install the base cover 16 Follow the procedure in After working inside your computer Removing and installing components 59 ...

Page 60: ...rivers and downloads When troubleshooting downloading or installing drivers it is recommended that you read the Dell Knowledge Based article Drivers and Downloads FAQ 000123347 3 60 Drivers and downloads ...

Page 61: ...k Turn on or restart your computer and press F2 immediately Navigation keys NOTE For most of the System Setup options changes that you make are recorded but do not take effect until you restart the system Table 3 Navigation keys Keys Navigation Up arrow Moves to the previous field Down arrow Moves to the next field Enter Selects a value in the selected field if applicable or follow the link in the...

Page 62: ...Drive if available Diagnostics The boot sequence screen also displays the option to access the System Setup screen System setup options NOTE Depending on this computer and its installed devices the items that are listed in this section may or may not be displayed Table 4 System setup options System information menu Overview BIOS Version Displays the BIOS version number Service Tag Displays the Ser...

Page 63: ...vailable Memory Speed Displays the memory speed Memory Channel Mode Displays single or dual channel mode Memory Technology Displays the technology that is used for the memory Device Information Video Controller Displays the integrate graphics information of the computer dGPU Video Controller Displays the discrete graphics information of the computer Video BIOS Version Displays the video BIOS versi...

Page 64: ...es all integrated audio controller Default ON Enable Microphone Enables or disables microphone Default ON Enable Internal Speaker Enables or disables internal speaker Default ON USB Configuration Enable Boot Support Enables or disables booting from USB mass storage devices such as external hard drive optical drive and USB drive Enable External USB Ports Enables or disables USB ports to be function...

Page 65: ... running on AC power EcoPower Enables or disables EcoPower which increases the battery life by reducing the screen brightness when appropriate Default ON Table 8 System setup options Security menu Security Enable Admin Setup Lockout Enables or disables the user from entering BIOS Setup when an Admin Password is set Default OFF Password Bypass Bypass the System Boot Password and the internal hard d...

Page 66: ...ber of characters that are allowed for Admin and System passwords Admin Password Sets Changes or deletes the administrator admin password sometimes called the setup password System Password Sets Changes or deletes the system password Enable Master Password Lockout Enables or disables the master password support Default OFF Table 9 System setup options Secure Boot menu Secure Boot Enable Secure Boo...

Page 67: ...Enables the computer to automatically power on for defined days and times Default Disabled The system will not automatically power up Battery Charge Configuration Enables the computer to run on battery during power usage hours Use the below options to prevent AC power usage between certain times of each day Default Adaptive Battery settings are adaptively optimized based on your typical battery us...

Page 68: ...or disables Numlock when the computer boots Default ON Enable Adapter Warnings Enables the computer to display adapter warning messages during boot Default ON Extend BIOS POST Time Configures the BIOS POST Power On Self Test load time Default 0 seconds Fastboot Configures the speed of the UEFI boot process Default Thorough Performs complete hardware and configuration initialization during boot Fn ...

Page 69: ...the event of EC corruption ME corruption or a hardware issue The recovery image must exist on an unencrypted partition on the drive BIOS Auto Recovery Enables the computer to automatically recover the BIOS without user actions This feature requires BIOS Recovery from Hard Drive to be set to Enabled Default OFF Start Data Wipe CAUTION This Secure Wipe Operation will delete information in a way that...

Page 70: ...f it is not locked and left unattended NOTE System and setup password feature is disabled Assigning a system setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set About this task To enter the system setup press F12 immediately after a power on or reboot Steps 1 In the System BIOS or System Setup screen select Security and press Enter The Secu...

Page 71: ...word reenter the new password when prompted If you delete the System and or Setup password confirm the deletion when prompted 5 Press Esc and a message prompts you to save the changes 6 Press Y to save the changes and exit from System Setup The computer restarts Clearing CMOS settings About this task CAUTION Clearing CMOS settings will reset the BIOS settings on your computer Steps 1 Turn off your...

Page 72: ...the bootable USB drive 4 Connect the bootable USB drive to the computer that needs the BIOS update 5 Restart the computer and press F12 6 Select the USB drive from the One Time Boot Menu 7 Type the BIOS setup program filename and press Enter The BIOS Update Utility appears 8 Follow the on screen instructions to complete the BIOS update Updating the BIOS from the F12 One Time boot menu Update your ...

Page 73: ... off state insert the USB drive where you copied the flash into a USB port of the computer 2 Turn on the computer and press F12 to access the One Time Boot Menu select BIOS Update using the mouse or arrow keys then press Enter The flash BIOS menu is displayed 3 Click Flash from file 4 Select external USB device 5 Select the file and double click the flash target file and then click Submit 6 Click ...

Page 74: ...o not apply pressure to the surface of the battery Do not bend the battery Do not use tools of any type to pry on or against the battery If a battery gets stuck in a device as a result of swelling do not try to free it as puncturing bending or crushing a battery can be dangerous Do not attempt to reassemble a damaged or swollen battery into a laptop Swollen batteries that are covered under warrant...

Page 75: ...ng table shows different power and battery status light patterns and associated problems Table 20 LED codes Diagnostic light codes Problem description 1 1 TPM detection failure 1 2 Unrecoverable SPI flash failure 1 5 i Fuse failure 1 6 EC internal failure 2 1 Processor failure 2 2 System board BIOS or ROM Read Only Memory failure 2 3 No memory or RAM Random Access Memory detected 2 4 Memory or RAM...

Page 76: ...k Built in self test BIST M BIST M BIST Built In Self Test is the system board s built in self test diagnostics tool that improves the diagnostics accuracy of system board embedded controller EC failures NOTE M BIST can be manually initiated before POST Power On Self Test How to run M BIST NOTE M BIST must be initiated on the system from a power off state either connected to AC power or with batte...

Page 77: ...ntervention confirm functionality of the LCD Recovering the operating system When your computer is unable to boot to the operating system even after repeated attempts it automatically starts Dell SupportAssist OS Recovery Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating system It consists of tools to diagnose and troubl...

Page 78: ... com support Real Time Clock RTC reset The Real Time Clock RTC reset function allows you or the service technician to recover the recently launched model Dell Latitude and Precision systems from No POST No Boot No Power situations You can initiate the RTC reset on the system from a power off state only if it is connected to AC power Press and hold the power button for 25 seconds The system RTC res...

Page 79: ... Service Tag or Express Service Code at www dell com support For more information on how to find the Service Tag for your computer see Locate the Service Tag on your computer Dell knowledge base articles for a variety of computer concerns 1 Go to www dell com support 2 On the menu bar at the top of the Support page select Support Knowledge Base 3 In the Search field on the Knowledge Base page type...

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