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Table 1. Screw list (continued)

Component

Screw type

Quantity

Image

3.5 in. hard-drive

#6-32

System board

#6-32

Side cover

Removing the side cover

Prerequisites

1. Follow the procedure in

before working inside your computer

NOTE:

Ensure that you remove the security cable from the security-cable slot (if applicable).

About this task

The following images indicate the location of the side cover and provide a visual representation of the removal procedure.

Removing and installing components

Содержание D29M

Страница 1: ...OptiPlex 3090 Tower Service Manual Regulatory Model D29M Regulatory Type D29M001 October 2021 Rev A00 ...

Страница 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 ...

Страница 3: ...rd drive assembly 17 Removing the 2 5 inch hard drive bracket 18 Installing the 2 5 inch hard drive bracket 19 Installing the 2 5 inch hard drive assembly 20 3 5 inch hard drive 22 Removing the 3 5 inch hard drive 22 Installing the 3 5 inch hard disk drive 22 Solid state drive 23 Removing the M 2 2230 PCIe solid state drive 23 Installing the M 2 2230 PCIe solid state drive 24 Removing the M 2 2280...

Страница 4: ...r 45 Power button 46 Removing the power button 46 Installing the power button 47 Power supply unit 48 Removing the power supply unit 48 Installing the power supply unit 50 Intrusion switch 52 Removing the intrusion switch 52 Installing the intrusion switch 53 Optional I O modules HDMI VGA DP Serial 54 Removing optional I O modules HDMI VGA DP Serial 54 Installing optional I O modules HDMI VGA DP S...

Страница 5: ...ng the BIOS from the F12 One Time boot menu 79 System and setup password 80 Assigning a system setup password 80 Deleting or changing an existing system setup password 80 Clearing BIOS System Setup and System passwords 81 Chapter 5 Troubleshooting 82 Dell SupportAssist Pre boot System Performance Check diagnostics 82 Running the SupportAssist Pre Boot System Performance Check 82 Diagnostic LED beh...

Страница 6: ...ructions that is shipped with the product or at www dell com regulatory_compliance CAUTION Before touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate static electricity which could harm internal components CAUTION When you disconnect a ca...

Страница 7: ... done through the use of a field service electrostatic discharge ESD kit When connecting a bonding wire ensure that it is connected to bare metal and never to a painted or non metal surface The wrist strap should be secure and in full contact with your skin and ensure that you remove all jewelry such as watches bracelets or rings prior to bonding yourself and the equipment Electrostatic discharge ...

Страница 8: ...ecommended to test the wrist strap and bonding wire at least once per week ESD Wrist Strap Tester The wires inside of an ESD strap are prone to damage over time When using an unmonitored kit it is a best practice to regularly test the strap prior to each service call and at a minimum test once per week A wrist strap tester is the best method for doing this test If you do not have your own wrist st...

Страница 9: ...replacement parts or parts to be returned to Dell it is critical to place these parts in anti static bags for safe transport After working inside your computer About this task CAUTION Leaving stray or loose screws inside your computer may severely damage your computer Steps 1 Replace all screws and ensure that no stray screws remain inside your computer 2 Connect any external devices peripherals o...

Страница 10: ...f screws and then place them in a screw storage box This is to ensure 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 Q...

Страница 11: ...er Prerequisites 1 Follow the procedure in before working inside your computer NOTE Ensure that you remove the security cable from the security cable slot if applicable About this task The following images indicate the location of the side cover and provide a visual representation of the removal procedure Removing and installing components 11 ...

Страница 12: ...r away from the computer Installing the side 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 side cover and provides a visual representation of the installation procedure 12 Removing and installing components ...

Страница 13: ...ver with the slots on the chassis 3 Slide the side cover towards the front of the computer to install it 4 Tighten the thumbscrew 6 32 to secure the side cover to the computer Next steps 1 Follow the procedure in after working inside your computer Removing and installing components 13 ...

Страница 14: ...the removal procedure Steps 1 Pry the retention tabs to release the front bezel from the computer 2 Slightly pull the front bezel and gently rotate to release the other tabs on the bezel from the slots in the computer chassis 3 Remove the front bezel from the computer Installing the front bezel Prerequisites If you are replacing a component remove the existing component before performing the insta...

Страница 15: ... the bezel until the tabs clicks into place Next steps 1 Install the side cover 2 Follow the procedure in after working inside your computer Fan shroud Removing the fan duct Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover About this task The following images indicate the location of the fan duct and provide a visual representation of the removal ...

Страница 16: ... Installing the fan duct 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 fan duct and provides a visual representation of the installation procedure 16 Removing and installing components ...

Страница 17: ...inside your computer 2 5 inch hard drive assembly Removing the 2 5 inch hard drive assembly Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct About this task The following images indicate the location of the 2 5 inch hard drive assembly and provide a visual representation of the removal procedure Removing and installing compon...

Страница 18: ...hassis 3 Tilt the hard drive assembly slightly at an angle 4 Lift the hard drive assembly from the computer NOTE Note the orientation of the hard drive so that you can replace it correctly Removing the 2 5 inch hard drive bracket Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct 4 Remove the 2 5 inch hard drive assembly 18 Rem...

Страница 19: ...ve the two M3x3 5 screws that secure the second hard drive to the hard drive metal bracket 4 Slide and lift the second hard disk drive from the hard drive metal bracket Installing the 2 5 inch hard drive bracket 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 ...

Страница 20: ...ots on the bracket with the slots on the hard drive 4 Replace the two M3x3 5 screws to secure the second hard drive to the hard drive metal bracket Next steps 1 Install the 2 5 inch hard drive assembly 2 Install the fan duct 3 Install the side cover 4 Follow the procedure in after working inside your computer Installing the 2 5 inch hard drive assembly Prerequisites If you are replacing a componen...

Страница 21: ...lot on the computer 2 Press the release tabs on the hard drive bracket and slightly align back to insert the hard drive assembly to the slot on the computer chassis 3 Connect the hard drive data and power cables to the connectors on the 2 5 inch hard drive module Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Removing and ins...

Страница 22: ...s from the connectors on the 3 5 inch hard drive module 2 Slide the 3 5 inch hard drive up to release the four 6 32 grommet screws from its slot on the chassis 3 Remove the 3 5 inch hard drive away from the chassis Installing the 3 5 inch hard disk drive Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The fol...

Страница 23: ...s on the hard drive module Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Solid state drive Removing the M 2 2230 PCIe solid state drive Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct About this task The following images indicate the location of the so...

Страница 24: ...alling the M 2 2230 PCIe 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 drive and provides a visual representation of the installation procedure 24 Removing and installing components ...

Страница 25: ...d Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Removing the M 2 2280 PCIe solid state drive Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct About this task The following images indicate the location of the solid state drive and provide a visual repres...

Страница 26: ...alling the M 2 2280 PCIe 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 drive and provides a visual representation of the installation procedure 26 Removing and installing components ...

Страница 27: ...ard Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Memory modules Removing the memory modules Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct About this task The following images indicate the location of the memory modules and provide a visual represent...

Страница 28: ...ry module slot Installing the memory modules 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 memory modules and provides a visual representation of the installation procedure 28 Removing and installing components ...

Страница 29: ...inside your computer Processor fan and heat sink assembly Removing the processor fan and heat sink assembly Prerequisites 1 Follow the procedure in before working inside your computer WARNING The heat sink may become hot during normal operation Allow sufficient time for the heat sink to cool before you touch it CAUTION For maximum cooling of the processor do not touch the heat transfer areas on th...

Страница 30: ...k assembly to the system board 3 Lift the processor fan and heat sink assembly off the system board Installing the processor fan and heat sink assembly Prerequisites NOTE If either the processor or the heat sink is replaced use the thermal grease provided in the kit to ensure that thermal conductivity is achieved About this task The following image indicates the location of the processor fan and h...

Страница 31: ...oard Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Processor Removing the processor Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct 4 Remove the processor fan and heat sink assembly NOTE The processor might still be hot after the computer is shut down ...

Страница 32: ...n removing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 3 Gently lift the processor from the processor socket Installing the processor 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 proces...

Страница 33: ...essor socket When the processor is properly seated all four corners are aligned at the same height If one or more corners of the processor are higher than the others the processor is not seated properly 3 When the processor is fully seated in the socket pivot the release lever down and place it under the tab on the processor cover Next steps 1 Install the processor fan and heat sink assembly 2 Ins...

Страница 34: ...the graphics card PCI Express 2 Lift the pull tab to open the PCIe door 3 Push and hold the securing tab on the graphics card slot and lift the graphics card from the graphics card slot Installing the graphics card 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 t...

Страница 35: ... firmly Ensure that the card is firmly seated 3 Lift the pull tab to close the PCIe door Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Graphical processing unit Removing the powered GPU Prerequisites 1 Follow the procedure in before working inside your computer Removing and installing components 35 ...

Страница 36: ...s 1 Lift the pull tab to open the PCIe door 2 Disconnect the power cable from the connector on the powered GPU 3 Push and hold the securing tab on the graphics card slot and lift the powered GPU away from the graphics card slot Installing the powered GPU Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 36 Removing and install...

Страница 37: ...onnector on the system board 2 Using the alignment post connect the powered GPU in the connector and press down firmly Ensure that the powered GPU is firmly seated 3 Connect the power cable to the connector on the powered GPU 4 Lift the pull tab to close the PCIe door Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Removing an...

Страница 38: ...and provide a visual representation of the removal procedure Steps 1 Using a plastic scribe gently pry the coin cell battery out of the slot on the system board 2 Remove the coin cell battery away from the computer Installing the coin cell battery Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The following ...

Страница 39: ...fan duct 3 Install the side cover 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 side cover 3 Remove the fan duct 4 Remove the powered GPU NOTE This step is required only if the system is configured with powered GPU About this task The following images indicate th...

Страница 40: ...nd remove the WLAN card from the connector on the system board 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 wireless card and provides a visual representation of the installation procedure 40 Removing and installing components ...

Страница 41: ...ck triangle Black 2 Place the WLAN card bracket to secure the WLAN antenna cables 3 Insert the WLAN card into the connector on the system board 4 Replace the M2x3 5 screw to secure the plastic tab to the WLAN card Next steps 1 Install the powered GPU NOTE This step is required only if the system is configured with powered GPU 2 Install the fan duct 3 Install the side cover 4 Follow the procedure i...

Страница 42: ...Steps 1 Disconnect the data and power cables from the slim ODD 2 Pull the securing tab to release the slim ODD from the chassis 3 Slide and remove the slim ODD from the ODD slot Installing the Slim Optical Disk Drive 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...

Страница 43: ...de cover 3 Follow the procedure in after working inside your computer Slim optical drive bracket Removing the slim ODD bracket Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct 4 Remove the slim Optical Disk Drive About this task The following images indicate the location of the slim ODD bracket and provides a visual represent...

Страница 44: ... performing the installation procedure About this task The following images indicate the location of the slim ODD bracket and provides a visual representation of the installation procedure Steps 1 Align and place the slim ODD bracket on the ODD slots 2 Snap the slim ODD bracket into the slim ODD Next steps 1 Install the slim Optical Disk Drive 2 Install the fan duct 3 Install the side cover 44 Rem...

Страница 45: ...eps 1 Disconnect the speaker cable from the connector on the system board 2 Unroute the speaker cable from the routing guides on the chassis 3 Press the tab and slide the speaker along with the cable from the slot on the chassis Installing the speaker Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The follow...

Страница 46: ...ct 2 Install the side cover 3 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 side cover 3 Remove the fan duct 4 Remove the front bezel About this task The following images indicate the location of the power button and provides a visual representation of the re...

Страница 47: ...e computer 3 Pull the power button cable out from the computer 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 images indicate the location of the power button switch and provides a visual representation of the installation procedure Removing and installing components...

Страница 48: ...he procedure in after working inside your computer Power supply unit Removing the power supply unit Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct NOTE Note the routing of all cables as you remove them so that you can route them correctly while you are replacing the power supply unit About this task The following images ind...

Страница 49: ...Removing and installing components 49 ...

Страница 50: ...er supply unit Prerequisites If you are replacing a component remove the existing component before performing the installation procedure WARNING The cables and ports on the back of the power supply unit are color coded to indicate the different power wattage Ensure that you plug in the cable to the correct port Failure to do so may result in damaging the power supply unit and or system components ...

Страница 51: ...Removing and installing components 51 ...

Страница 52: ...ctors on the system board Next steps 1 Install the fan duct 2 Install the side cover 3 Follow the procedure in after working inside your computer Intrusion switch Removing the intrusion switch Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the fan duct About this task The following images indicate the location of the intrusion switch an...

Страница 53: ...talling the intrusion switch 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 intrusion switch and provides a visual representation of the installation procedure Removing and installing components 53 ...

Страница 54: ...er working inside your computer Optional I O modules HDMI VGA DP Serial Removing optional I O modules HDMI VGA DP Serial Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the side cover 3 Remove the front bezel 4 Remove the fan duct About this task The following images indicate the location of the optional I O Modules and provides a visual representation of the r...

Страница 55: ...Removing and installing components 55 ...

Страница 56: ...56 Removing and installing components ...

Страница 57: ... O module from the computer Installing optional I O modules HDMI VGA DP Serial 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 system board and provides a visual representation of the installation procedure Removing and installing components 57 ...

Страница 58: ...58 Removing and installing components ...

Страница 59: ...Removing and installing components 59 ...

Страница 60: ...ly had no optional I O port 2 Insert the optional I O module Type C HDMI VGA DP Serial into its slot from the inside of your computer 3 Connect the I O cable to the connector on the system board 4 Replace the two M3X3 screws to secure the optional I O module to the system Next steps 1 Install the fan duct 2 Install the front bezel 3 Install the side cover 4 Follow the procedure in after working in...

Страница 61: ...re disconnecting the cables from the system board note the location of the connectors so that you can reconnect the cables correctly after you replace the system board 2 Remove the side cover 3 Remove the front bezel 4 Remove the fan duct 5 Remove the memory module 6 Remove the wireless 7 Remove the M 2 2230 SSD M 2 2280 SSD 8 Remove the coin cell battery 9 Remove the graphics card powered graphic...

Страница 62: ...62 Removing and installing components ...

Страница 63: ...chassis 2 Slide and remove the front I O bracket from the chassis 3 Disconnect all the cables that are connected to the system board 4 Remove the M 2 card standoff 6 32 screw and eight 6 32 screws that secure the system board to the chassis Removing and installing components 63 ...

Страница 64: ...d 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 system board and provides a visual representation of the installation procedure 64 Removing and installing components ...

Страница 65: ...Removing and installing components 65 ...

Страница 66: ... align the screw holes on the system board with the screw holes on the chassis 2 Replace the M 2 card standoff 6 32 screw and eight 6 32 screws that secure the system board to the chassis 3 Route and connect all the cables to the connectors on the system board 66 Removing and installing components ...

Страница 67: ...eless 7 Install the memory module 8 Install the fan duct 9 Install the front bezel 10 Install the side cover 11 Follow the procedure in after working inside your computer NOTE Your computer s Service Tag is stored in the system board You must enter the Service Tag in the BIOS setup program after you replace the system board NOTE Replacing the system board removes any changes that you have made to ...

Страница 68: ...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 68 Drivers and downloads ...

Страница 69: ...g or disabling base devices BIOS overview The BIOS manages data flow between the computer s operating system and attached devices such as hard disk video adapter keyboard mouse and printer Entering BIOS setup program Steps 1 Turn on your computer 2 Press F2 immediately to enter the BIOS setup program NOTE If you wait too long and the operating system logo appears continue to wait until you see the...

Страница 70: ...tem Information Displays the following information System Information Displays BIOS Version Service Tag Asset Tag Ownership Tag Manufacture Date Ownership Date and the Express Service Code Memory Information Displays Memory Installed Memory Available Memory Speed Memory Channel Mode Memory Technology DIMM 1 Size and DIMM 2 Size PCI Information Displays Slot1_M 2 Slot2_M 2 Processor Information Dis...

Страница 71: ...n Allows you to enable or disable the integrated USB controller for Enable USB Boot Support Enable Front USB Ports Enable Rear USB Ports All the options are enabled by default Front USB Configuration Allows you to enable or disable the front USB ports All the ports are enabled by default Rear USB Configuration Allows you to enable or disable the back USB ports All the ports are enabled by default ...

Страница 72: ...passwords when powered on from the off state a cold boot Also the system will always prompt for passwords on any module bay HDDs that may be present Password Change This option lets you determine whether changes to the System and Hard Disk passwords are permitted when an administrator password is set Allow Non Admin Password Changes This option is enabled by default UEFI Capsule Firmware Updates T...

Страница 73: ...eature Secure Boot Enable This option is not selected by default Secure Boot Mode Allows you to modify the behavior of Secure Boot to allow evaluation or enforcement of UEFI driver signatures Deployed Mode default Audit Mode Expert key Management Allows you to manipulate the security key databases only if the system is in Custom Mode The Enable Custom Mode option is disabled by default The options...

Страница 74: ...ulti Core Support This field specifies whether the process has one or all cores enabled The performance of some applications improves with the additional cores All Default 1 2 3 Intel SpeedStep Allows you to enable or disable the Intel SpeedStep mode of processor Enable Intel SpeedStep This option is set by default C States Control Allows you to enable or disable the additional processor sleep sta...

Страница 75: ...a special LAN signal This feature only works when the computer is connected to AC power supply Disabled Does not allows the system to power on by special LAN signals when it receives a wake up signal from the LAN or wireless LAN LAN or WLAN Allows the system to be powered on by special LAN or wireless LAN signals LAN Only Allows the system to be powered on by special LAN signals LAN with PXE Boot ...

Страница 76: ...e when warning or errors are detected Choose any one of the option Prompt on Warnings and Errors default Continue on Warnings Continue on Warnings and Errors Virtualization support Table 13 Virtualization Support Option Description Virtualization This option specifies whether a Virtual Machine Monitor VMM can utilize the additional hardware capabilities provided by the Intel Virtualization technol...

Страница 77: ...y from Hard Drive This option is set by default Allows you to recover the corrupted BIOS from a recovery file on the HDD or an external USB key NOTE BIOS Recovery from Hard Drive field must be enabled Always Perform Integrity Check Performs integrity check on every boot First Power On Date Allows you the set Ownership date The option Set Ownership Date is not set by default System logs Table 16 Sy...

Страница 78: ...nter the Service Tag of your computer and then click Search NOTE If you do not have the Service Tag use the SupportAssist feature to automatically identify your computer You can also use the product ID or manually browse for your computer model 3 Click Drivers Downloads Expand Find drivers 4 Select the operating system installed on your computer 5 In the Category drop down list select BIOS 6 Selec...

Страница 79: ...em re install For more information on this subject see Knowledge Article https www dell com support article sln153694 BIOS Update You can run the BIOS update file from Windows using a bootable USB drive or you can also update the BIOS from the F12 One Time boot menu on the computer Most of the Dell computers built after 2012 have this capability and you can confirm by booting your computer to the ...

Страница 80: ...ord 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 Security screen is displayed 2 Select System Admin Password and create a password in the Enter the new password field Use the following guidelines to assign the system password A passw...

Страница 81: ...nd press Enter or Tab NOTE If you change the System and or Setup password 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 BIOS System Setup and System passwords About this task To c...

Страница 82: ...lways ensure that you are present at the computer terminal when the diagnostic tests are performed For more information see https www dell com support kbdoc 000180971 Running the SupportAssist Pre Boot System Performance Check Steps 1 Turn on your computer 2 As the computer boots press the F12 key as the Dell logo appears 3 On the boot menu screen select the Diagnostics option 4 Click the arrow at...

Страница 83: ...set Error Clock failure Gate A20 failure Super I O failure Keyboard controller failure Flash latest BIOS version If problem persists replace the system board 3 1 CMOS battery failure Reset the CMOS battery connection If problem persists replace the RTS battery 3 2 PCI or Video card chip failure Replace the system board 3 3 BIOS Recovery image not found Flash latest BIOS version If problem persists...

Страница 84: ... OS Recovery User s Guide at www dell com serviceabilitytools Click SupportAssist and then click SupportAssist OS Recovery Real Time Clock RTC Reset The Real Time Clock RTC reset function allows you or the service technician to recover Dell systems from No POST No Power No Boot situations The legacy jumper enabled RTC reset has been retired on these models Start the RTC reset with the system power...

Страница 85: ...5 Turn on the wireless router 6 Turn on the modem 7 Turn on your computer Troubleshooting 85 ...

Страница 86: ... 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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