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Dell Latitude 3320, Service Manual

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Dell Latitude 3320 Service Manual Download Page 51

10. Remove the 

heatsink assembly

.

11. Remove the 

power button with fingerprint reader

.

About this task

The following image indicates the connectors on your system board.

Figure 1. System-board connectors

1. Power button with fingerprint reader cable

2. Speaker cable

3. Display cable

4. Power cable

5. Backlit LED cable

6. Keyboard cable

7. Touchpad cable

8. Coin-cell battery cable

9. Input output board cable

The following images indicate the location of the system board assembly and provide a visual representation of the removal
procedure.

Removing and installing components

51

Summary of Contents for Latitude 3320

Page 1: ...Latitude 3320 Service Manual Regulatory Model P146G Regulatory Type P146G001 August 2021 Rev A02 ...

Page 2: ...ential 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 2021 Dell Inc or its subsidiaries All rights reserved Dell EMC and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners ...

Page 3: ...se cover 14 Installing the base cover 16 Solid state drive 17 Removing the M 2 2230 solid state drive 17 Installing the M 2 2230 solid state drive 18 Removing the M 2 2280 solid state drive 20 Installing the M 2 2280 solid state drive 20 Speakers 21 Removing the speakers 21 Installing the speakers 22 WLAN card 23 Removing the WLAN card 23 Installing the WLAN card 24 Coin cell battery 26 Removing t...

Page 4: ...ving the system board 50 Installing the system board 53 Power adapter port 56 Removing the power adapter port 56 Installing the power adapter port 57 Palmrest assembly 58 Removing the palmrest assembly 58 Chapter 3 Drivers and downloads 60 Chapter 4 System setup 61 BIOS overview 61 Entering BIOS setup program 61 Boot menu 61 Navigation keys 61 Boot Sequence 62 System setup options 62 Updating the ...

Page 5: ...ce Check 76 Built in self test BIST 76 M BIST 76 LCD Power rail test L BIST 77 LCD Built in Self Test BIST 77 System diagnostic lights 77 Recovering the operating system 79 Real Time Clock RTC Reset 79 Backup media and recovery options 79 WiFi power cycle 80 Drain residual flea power perform hard reset 80 Chapter 6 Getting help and contacting Dell 81 Contents 5 ...

Page 6: ... and cards with care Do not touch the components or contacts on a card Hold a card by its edges or by its metal mounting bracket Hold a component such as a processor by its edges not by its pins CAUTION When you disconnect a cable pull on its connector or on its pull tab not on the cable itself Some cables have connectors with locking tabs if you are disconnecting this type of cable press in on th...

Page 7: ... computer and conduct repairs without disconnecting the battery cable from the system board To exit Service Mode 1 Connect the AC adapter to the power adapter port on your computer 2 Press the power button to turn on the computer Your computer will automatically return to normal functioning mode Safety precautions The safety precautions chapter details the primary steps to be taken before performi...

Page 8: ...atent 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 protection Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage Handle all static sensitive co...

Page 9: ...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 original box that the new part arrived in ESD sensitive devices should be removed from packaging only at an ESD protected work surface and parts should never be...

Page 10: ...e Screw List The following table shows the screw list and the image of the screws Table 1 Screw list Component Screw type Quantity Image Base cover Captive screws 7 3 cell battery M2x3 3 4 cell battery M2x3 5 Solid state drive bracket M2x3 1 WLAN M2x3 1 Left system Fan M2x3 2 Right system Fan M2x3 2 Display cable bracket M2x2 5 1 Display hinge bracket M2x2 5 M2x3 1 4 Input Output board M2x2 5 1 To...

Page 11: ...ontinued Component Screw type Quantity Image Touchpad M2x2 2 Heatsink assembly Captive screws 4 Power button with fingerprint reader M2x3 1 System board M2x2 5 1 Type C bracket M2x3 1 Removing and installing components 11 ...

Page 12: ...Major components of your system 1 Base cover 12 Removing and installing components ...

Page 13: ...ystem configuration purchased These parts are available according to warranty coverages purchased by the customer Contact your Dell sales representative for purchase options MicroSD card Removing the microSD card Prerequisites 1 Follow the procedure in before working inside your computer About this task The following image provides a visual representation of the microSD card removal procedure Step...

Page 14: ...sert the microSD card into its slot until it clicks into place Next steps 1 Follow the procedure in after working inside your computer Base cover Removing the base cover Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode About this task The following images indicate the location of the base cover and provide a visual repre...

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

Page 16: ...he base cover 4 Carefully lift and remove the base cover from the chassis NOTE Be careful of the latches while removing the base cover as the latches may break Installing the base cover Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following images indicate the location of the base cover and provide a v...

Page 17: ...procedure in after working inside your computer Solid state drive Removing the M 2 2230 solid state drive Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover About this task The following image indicates the location of the solid state drive and provides a visual representation of the removal procedu...

Page 18: ...m board 3 Remove the solid state drive bracket from the system board 4 Slide and remove the solid state drive from the M 2 card connector on the system board Installing the M 2 2230 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 solid state ...

Page 19: ...ures the solid state drive bracket to the system board 5 Close the solid state drive mylar sheet to cover the solid state drive NOTE There is a protective mylar sheet covering the solid state drive This mylar sheet must be closed after the installation procedure Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 Follow the procedure in After working inside you...

Page 20: ...ylar sheet covering the solid state drive This mylar sheet must be opened in order to proceed with the removal procedure 2 Remove the single screw M2x3 that secures the solid state drive to the system board 3 Slide and remove the solid state drive from the M 2 card connector on the system board Installing the M 2 2280 solid state drive Prerequisites If you are replacing a component remove the exis...

Page 21: ...tate drive This mylar sheet must be closed after the installation procedure Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 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 microSD card 3 Enter the service mode 4 Remove the base ...

Page 22: ...rs in place 4 Remove the speakers from the chassis 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 installation procedure 22 Removing and installing components ...

Page 23: ...ll the base cover 3 Install the microSD card 4 Follow the procedure in after working inside your computer WLAN card Removing the WLAN card Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover About this task The following images indicate the location of the WLAN card and provide a visual representatio...

Page 24: ...AN card 4 Lift and remove the WLAN card from the WLAN card slot Installing the WLAN 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 WLAN card and provides a visual representation of the installation procedure 24 Removing and installing components ...

Page 25: ... should be taken while replacing them Table 2 Antenna cable guide Cable color Connector White cable Main White triangle on the WLAN module of the system board Black cable Aux Solid triangle on the WLAN module of the system board 4 Align and place the WLAN card bracket on the WLAN card 5 Install the screw M2x3 to secure the WLAN card bracket to the system board Next steps 1 Install the base cover 2...

Page 26: ...ell battery is removed it clears the CMOS settings The following image indicates the location of the coin cell battery and provides a visual representation of the removal procedure Steps 1 Disconnect the coin cell battery cable from the connector on the system board 2 Lift and remove the coin cell battery from the palmrest assembly Installing the coin cell battery Prerequisites If you are replacin...

Page 27: ...on battery precautions CAUTION Exercise caution 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 ...

Page 28: ...used and should be replaced and disposed properly For guidelines on how to handle and replace swollen Lithium ion batteries see Handling swollen Lithium ion batteries Removing the battery cable Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover 5 Remove the battery About this task NOTE The battery c...

Page 29: ...representation of the installation procedure Steps Connect the battery cable to the connector on the system board Next steps 1 Install the battery 2 Install the base cover 3 Exit the service mode 4 Install the microSD card 5 Follow the procedure in After working on your computer Battery Removing the 3 cell battery Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove...

Page 30: ... adhesive tapes and unroute the battery cable from the routing channel in the battery 4 Remove the three M2x3 screws that secure the battery to the palmrest assembly 5 Carefully lift and remove the battery from the chassis Installing the 3 cell battery Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The follo...

Page 31: ...re the battery in place Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 Follow the procedure in After working on your computer Removing the 4 cell battery Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover About this task The following image indicates the loc...

Page 32: ...ve the five M2x3 screws that secure the battery to the palmrest assembly 5 Carefully lift and remove the battery from the chassis Installing the 4 cell battery 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 battery and provides a visual representation of the ...

Page 33: ...attery in place Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 Follow the procedure in After working on your computer System fan Removing the left system fan Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Remove the base cover 4 Remove the battery About this task The following image indicates the loc...

Page 34: ... off the palmrest assembly Installing the left system fan 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 left system fan and provides a visual representation of the installation procedure 34 Removing and installing components ...

Page 35: ...cover 3 Install the microSD card 4 Follow the procedure in after working inside your computer Removing the right system fan Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Remove the base cover 4 Remove the battery About this task The following image indicates the location of the right system fan and provides a visual representation of the re...

Page 36: ...he system fan in place 4 Lift the system fan off the palmrest assembly Installing the right system fan 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 right system fan and provides a visual representation of the installation procedure 36 Removing and installin...

Page 37: ...lace 3 Connect the system fan cable to the connector on the system board 4 Close the solid state drive mylar sheet to cover the solid state drive Next steps 1 Install the battery 2 Install the base cover 3 Install the microSD card 4 Follow the procedure in after working inside your computer Removing and installing components 37 ...

Page 38: ...icroSD card 3 Enter the service mode 4 Remove the base cover About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure NOTE The display assembly removal procedure is the same for both laptop and convertible chassis 38 Removing and installing components ...

Page 39: ...he connector on the system board 3 Peel the adhesive tape that secures the display cable 4 Remove the M2x2 5 screw and four M2x3 screws that secure the display hinges to the system 5 Lift the left and right hinges in upward direction away from the system 6 Lift the system chassis off the display assembly Removing and installing components 39 ...

Page 40: ...ove the existing component before performing the installation procedure NOTE The display assembly installation procedure is the same for both laptop and convertible chassis About this task The following images indicate the location of the display assembly and provide a visual representation of the installation procedure 40 Removing and installing components ...

Page 41: ...Removing and installing components 41 ...

Page 42: ...ew to secure the display cable bracket Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 Follow the procedure in after working inside your computer Input Output board Removing the Input Output board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover About this ...

Page 43: ... M2x2 5 screw that secures the Input Output board to the palmrest assembly 5 Lift the Input Output board off the palmrest assembly Installing the Input Output board 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 I O board and provides a visual representation ...

Page 44: ...nward direction toward the system 5 Install the two M2x3 screws to secure the left display hinge to the system Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 Follow the procedure in after working inside your computer Heatsink assembly Removing the heatsink assembly Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the mic...

Page 45: ...rse order 4 3 2 1 that secure the heatsink assembly to the system board 3 Slide lift and remove the heatsink assembly from the system board Installing the heatsink 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 heatsink assembly and provides a visual...

Page 46: ... 3 Close the solid state drive mylar sheet to cover the solid state drive Next steps 1 Install the base cover 2 Exit the service mode 3 Install the microSD card 4 Follow the procedure in after working inside your computer Touchpad Removing the touchpad Prerequisites 1 Follow the procedure in before working inside your computer 46 Removing and installing components ...

Page 47: ...et to the touchpad module 3 Lift and remove the touchpad bracket from the touchpad module 4 Remove the two M2x2 screws that secure the touchpad module to the palmrest assembly 5 Lift and remove the touchpad module from the palmrest assembly Installing the touchpad Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this ta...

Page 48: ...1 Install the battery 2 Install the base cover 3 Install the microSD card 4 Follow the procedure in after working inside your computer Power button board Removing the power button board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover 5 Remove the display assembly 6 Remove the input output board 7...

Page 49: ...ve the power button board from the chassis Installing the power button board 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 board and provides a visual representation of the installation procedure Removing and installing components 49 ...

Page 50: ...display assembly 4 Install the base cover 5 Exit the service mode 6 Install the microSD card 7 Follow the procedure in after working inside your computer System board Removing the system board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the microSD card 3 Enter the service mode 4 Remove the base cover 5 Remove the speaker 6 Remove the M 2 solid state drive ...

Page 51: ...oard connectors 1 Power button with fingerprint reader cable 2 Speaker cable 3 Display cable 4 Power cable 5 Backlit LED cable 6 Keyboard cable 7 Touchpad cable 8 Coin cell battery cable 9 Input output board cable The following images indicate the location of the system board assembly and provide a visual representation of the removal procedure Removing and installing components 51 ...

Page 52: ... the power cable power button with finger print reader cable speaker cable and coin cell battery cable from the connectors on the system board 3 Open the latch and pull the input output board cable from the connector on the system board 4 Remove the M2x2 5 screw that secures the system board in place 52 Removing and installing components ...

Page 53: ...stallation procedure About this task The following image indicates the connectors on your system board Figure 2 System board connectors 1 Power button with fingerprint reader cable 2 Speaker cable 3 Display cable 4 Power cable 5 Backlit LED cable 6 Keyboard cable 7 Touchpad cable 8 Coin cell battery cable 9 Input output board cable The following images indicate the location of the system board and...

Page 54: ...54 Removing and installing components ...

Page 55: ...r on the system board and close the latch 6 Connect the power cable power button with finger print reader cable speaker cable and coin cell battery cable to the connectors on the system board 7 Connect the touchpad cable keyboard cable and LED cable to the connectors on the system board and close the latch Next steps 1 Install the power button with fingerprint reader 2 Install the heatsink assembl...

Page 56: ...ly 11 Remove the power button with fingerprint reader 12 Remove the system board NOTE The system board can be removed with the heat sink attached About this task The following image indicates the location of the power adapter port and provides a visual representation of the removal procedure Steps 1 Unroute the power adapter port cable from the screw post CAUTION Carefully unroute the power adapte...

Page 57: ...ON Carefully route the power adapter port cable through the screw post for installing the power adapter port on the chassis Next steps 1 Install the system board NOTE The system board can be installed with the heat sink attached 2 Install the power button with fingerprint reader 3 Install the heatsink assembly 4 Install the input output board 5 Install the display assembly 6 Install the system fan...

Page 58: ...the heatsink assembly 11 Remove the touchpad 12 Remove the power button with fingerprint reader 13 Remove the system board NOTE The system board can be removed with the heat sink attached About this task The following image indicates the location of the palmrest and provides a visual representation of the removal procedure Steps After performing the preceding steps you are left with the palmrest a...

Page 59: ...l the input output board 6 Install the display assembly 7 Install the system fan 8 Install the M 2 solid state drive 9 Install the speakers 10 Install the battery 11 Install the base cover 12 Install the microSD card 13 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: ...d disk video adapter keyboard mouse and printer Entering BIOS setup program About this task Turn on or restart your computer and press F2 immediately Boot menu Press F12 when the Dell logo appears to initiate a one time boot menu with a list of the valid boot devices for the system Diagnostics and BIOS Setup options are also included in this menu The devices listed on the boot menu depend on the b...

Page 62: ...X denotes the SATA drive number Optical Drive if available SATA Hard Drive if available Diagnostics NOTE Choosing Diagnostics displays the SupportAssist screen The boot sequence screen also displays the option to access the System Setup screen System setup options NOTE Depending on your system and its installed devices the items that are listed in this section may or may not appear Table 3 System ...

Page 63: ...ys the total system memory available 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 Devices Information Panel Type Displays the Panel Type of the system Video Controller Displays the video controller type of the system Video Memory Displays the video memory information of the syst...

Page 64: ...ts By default the Enable External USB Ports option is enabled Enable or disable booting from USB mass storage devices such as external hard drive optical drive and USB drive By default the Enable USB Boot Support option is enabled Disable USB4 PCIE Tunneling Disable the USB4 PCIE Tunneling option By default the option is disabled Video Power only on Type C Ports Enable or disable the Type C port f...

Page 65: ...stem by reducing the display brightness when appropriate By default Enable EcoPower option is enabled Full Screen Logo Enable or disable full screen logo By default the option is not enabled Table 8 System setup options Connection menu Connection Wireless Device Enable WLAN Enable or disable the internal WLAN device By default the option enabled Bluetooth Enable or disable the internal Bluetooth d...

Page 66: ...onnecting a Dell USB C Dock will wake the system from Standby Hibernate and Power Off By default the Wake on Dell USB C Dock option is enabled Block Sleep Enables to block entering sleep S3 mode in the operating system By default the Block Sleep option is disabled Lid Switch Enabled Lid Switch Enable or disable the lid switch By default the Enable Lid Switch option is enabled Power On Lid Open Whe...

Page 67: ...rmanently Disabled is selected Absolute Persistence cannot be re enabled No further changes to the Enable Disable states are allowed NOTE The Enable Disable options will be unavailable while Computrace is in the activated state UEFI Boot Path Security Controls whether the system will prompt the user to enter the admin password if set when booting to a UEFI boot path device from the F12 boot menu B...

Page 68: ...tem setup options Service menu System Management Service Tag required Displays the Service Tag of the system Asset Tag optional Create a system Asset Tag BT disabled By default the option is disabled Table 13 System setup options Update Recovery menu Update Recovery UEFI Capsule Firmware Updates Enable or disable BIOS updates through UEFI capsule update packages NOTE Disabling this option will blo...

Page 69: ...d time This option can be configured only if the Auto On Time is set to Everyday Weekdays or Selected Days By default the option is disabled Table 15 System setup options Keyboard menu Keyboard Numlock Enable Allows you to enable or disable the Numlock function when the system boots By default the option Fn Lock Options is enabled Fn Lock Options By default the Fn lock option is enabled Lock Mode ...

Page 70: ...t Intel Virtualization Technology Intel VT for Direct I O By default the option is disabled Table 18 System setup options Performance menu Performance Multi Core Support Active Cores Enables to change the number of CPU cores available to the operating system By default the All Cores option is enabled Intel SpeedStep Enable Intel SpeedStep Technology Enables the system to dynamically adjust process...

Page 71: ...mpted to enter the recovery key to progress and the system will ask for this on each reboot If the recovery key is not known this can result in data loss or an unnecessary operating system re install For more information on this subject see Knowledge Article https www dell com support article sln153694 Steps 1 Go to www dell com support 2 Click Product support In the Search support box enter the S...

Page 72: ...u Update your computer BIOS using the BIOS update exe file that is copied to a FAT32 USB drive and booting from the F12 One Time boot menu About this task CAUTION If BitLocker is not suspended before updating the BIOS the next time you reboot the system it will not recognize the BitLocker key You will then be prompted to enter the recovery key to progress and the system will ask for this on each r...

Page 73: ...r computer You can create a system password and a setup password to secure your computer CAUTION The password features provide a basic level of security for the data on your computer CAUTION Anyone can access the data stored on your computer if 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 ne...

Page 74: ...tus is Unlocked 3 Select System Password alter or delete the existing system password and press Enter or Tab 4 Select Setup Password alter or delete the existing setup password and press Enter or Tab NOTE If you change the System and or Setup password re enter the new password when prompted If you delete the System and Setup password confirm the deletion when prompted 5 Press Esc and a message pro...

Page 75: ...he 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 warranty should be returned to D...

Page 76: ...e diagnostic test 7 Select the device from the left pane and click Run Tests 8 If there are any issues error codes are displayed Note the error code and validation number and contact Dell 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 BIS...

Page 77: ...ncing is an inherent problem with the LCD screen of the Dell laptop or with the video card GPU and PC settings When you notice screen abnormalities like flickering distortion clarity issues fuzzy or blurry image horizontal or vertical lines color fade etc it is always a good practice to isolate the LCD screen by running the Built In Self Test BIST How to invoke LCD BIST Test 1 Power off the Dell l...

Page 78: ...sts replace the memory module 2 4 Memory RAM failure Reset and swap memory modules among the slots If problem persists replace the memory module 2 5 Invalid memory installed Reset and swap memory modules among the slots If problem persists replace the memory module 2 6 System board Chipset Error Replace the system board 2 7 LCD failure SBIOS message Replace the LCD module 2 8 LCD failure EC detect...

Page 79: ... tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system It enables you to diagnose hardware issues repair your computer back up your files or restore your computer to its factory state You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to soft...

Page 80: ...tery is removed For your safety and to protect the sensitive electronic components in your computer you are requested to drain residual flea power before removing or replacing any components in your computer Draining residual flea power also known as a performing a hard reset is also a common troubleshooting step if your computer does not power on or boot into the operating system To drain residua...

Page 81: ...r 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 the keyword t...

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