Dell Precision M6400 Service Manual
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Dell Precision M6400 Service Manual

Dell precision m6400 service manual
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See also: Setup and Features Information , Manual
Dell Precision M6400 Service Manual
Dell Precision™ M6400 Service Manual
Troubleshooting
Working on Your Computer
Base Assembly
Hard Drive
Optical Drive
WLAN/WiMax Card
WWAN Card
UWB WPAN Card and WPAN Card With Bluetooth®Wireless
Technology
Memory
Coin-Cell Battery
LED Cover
Keyboard
Edge-to-Edge Display
Model PP08X
Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to
avoid the problem.
CAUTION:
A CAUTION indicates potential for property damage, personal injury, or death.
If you purchased a DELL™ n Series computer, any references in this document to Microsoft
are not applicable.
Information in this document is subject to change without notice.
© 2008 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by
Bluetooth SIG, Inc., and is used by Dell under license; Microsoft, Windows, Windows Vista, and the Windows Vista start button logo are either
trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.
Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
September 2009
Rev. A01
file:///T|/htdocs/systems/wsm6400/en/sm/index.htm[11/16/2012 10:26:08 AM]
LED and CCFL Displays
Palm Rest Assembly
Fan
Processor Heatsink Assembly
Video Card/Heatsink
Assembly
Processor Module
Card Cage
IEEE 1394 Card
Left I/O Board
Right I/O Board
System Board
Flashing the BIOS
Biometer Cable
®
Windows
®
operating systems

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Summary of Contents for Dell Precision M6400

  • Page 1 Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc., and is used by Dell under license;...

  • Page 2: Diagnostic Light Codes During Post

    NOTE: After the computer completes POST, the Num Lock light may remain on, depending on your BIOS settings. For more information on using the system setup program, see the Dell™ Technology Guide at support.dell.com. Diagnostic Light Codes During POST To troubleshoot a problem with your computer, read the sequence of the keyboard status lights in order from left to right (Num Lock, Caps Lock, and then Scroll Lock).

  • Page 3: Hardware Troubleshooter

    Troubleshooting: Dell Precision M6400 Service Manual memory is restart the computer. If the computer starts normally, continue to install additional unsupported. memory modules (one at a time) until you have identified a faulty module or reinstalled all modules without error.

  • Page 4: When To Use The Dell Diagnostics

    5. At the Dell Diagnostics Main Menu, left-click with the touch pad/mouse, or press <Tab> and then <Enter>, to select the test you want to run (see Dell Diagnostics Main Menu).

  • Page 5: Starting The Dell Diagnostics From The Drivers And Utilities Media

    9. At the Dell Diagnostics Main Menu, left-click with the mouse, or press <Tab> and then <Enter>, to select the test you...

  • Page 6: Dell Diagnostics Main Menu

    Dell Support. NOTE: When contacting Dell Support, have your Service Tag ready. The Service Tag for your computer is located at the top of each test screen. The following tabs provide additional information for tests run from the Custom Test or Symptom Tree option:...

  • Page 7: Error Messages

    Troubleshooting: Dell Precision M6400 Service Manual The Dell Diagnostics obtains configuration information for all devices from System Setup, memory, and various internal tests, and displays the information in the device list in the left pane of the screen. NOTE: The device list may not display the names of all components installed on your computer or all devices attached to your computer.

  • Page 8: Battery Problems

    Insert another disc to eliminate the possibility that the original drive is defective. Insert a bootable floppy disk and restart the computer. Clean the drive or disk — For information on cleaning your computer, see the Dell™ Technology Guide at support.dell.com. Check the cable connections Run the Hardware Troubleshooter —...

  • Page 9: Optical Drive Problems

    Turn off standby mode in Windows before writing to a disc — For information about setting power options, see the Dell™ Technology Guide at support.dell.com. You can also search for the keyword standby in Windows Help and Support for information on power management modes.

  • Page 10: Lockups And Software Problems

    If your IEEE 1394 device is listed, Windows recognizes the device. If you have problems with a Dell IEEE 1394 device — Contact Dell Support. If you have problems with an IEEE 1394 device not provided by Dell — Contact the IEEE 1394 device manufacturer. Lockups and Software Problems...

  • Page 11: A Program Crashes Repeatedly

    Troubleshooting: Dell Precision M6400 Service Manual 1. Press <Ctrl><Shift><Esc> simultaneously to access the Task Manager. 2. Click the Applications tab. 3. Click to select the program that is no longer responding. 4. Click End Task. A program crashes repeatedly NOTE: Most software includes installation instructions in its documentation or on a floppy disk, CD, or DVD.

  • Page 12: Memory Problems

    Ensure that the memory you are using is supported by your computer. For more information about the type of memory supported by your computer, see the Setup and Quick Reference Guide for your computer at support.dell.com. Run the Dell Diagnostics (see Dell Diagnostics).

  • Page 13: No Sound From Speakers

    Check the headphone cable connection — Ensure that the headphone cable is securely inserted into the headphone connector. See the Setup and Quick Reference Guide for your computer at support.dell.com. Adjust the Windows volume control — Click or double-click the speaker icon in the lower-right corner of your screen.

  • Page 14: Dell Technical Update Service

    1. Shut down your computer and connect an external monitor to the computer. 2. Turn on the computer and the monitor and adjust the monitor brightness and contrast controls. If the external monitor works, the computer display or video controller may be defective. Contact Dell Support. Dell Technical Update Service The Dell Technical Update service provides proactive e-mail notification of software and hardware updates for your computer.

  • Page 15: Recommended Tools

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
  • Page 16 7. Disconnect any external devices and remove any cards before working on your computer: To remove a card, such as an ExpressCard, see the Dell™ Technology Guide at support.dell.com. To undock from a docking device, see the E-Port User's Guide or the E-Port Plus User's Guide at support.dell.com.

  • Page 17: After Working On Your Computer

    NOTE: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers. 1. Connect external devices, replace cards, and connect telephone or network cables to your computer.

  • Page 18: Base Assembly

    Base Assembly: Dell Precision M6400 Service Manual Back to Contents Page Base Assembly Dell Precision™ M6400 Service Manual Removing the Base Assembly Cover Replacing the Base Assembly Cover Removing the Base Assembly Replacing the Base Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 19: Removing The Base Assembly

    Base Assembly: Dell Precision M6400 Service Manual 3. Replace the M2 x 3-mm screws. 4. Follow the procedures in After Working on Your Computer. Removing the Base Assembly 1. Follow the procedures in Before Working on Your Computer. 2. Remove the base assembly cover (see Removing the Base Assembly Cover).
  • Page 20 17. Enter the system setup program to update the BIOS on the new system board with the computer Service Tag. For information on the system setup program, see the Dell™ Technology Guide at support.dell.com. Back to Contents Page...

  • Page 21: Hard Drive

    Removing the Secondary Hard Drive (HDD2) Replacing the Secondary Hard Drive (HDD2) NOTE: Dell does not guarantee compatibility or provide support for hard drives obtained from sources other than Dell. Removing the Primary Hard Drive (HDD1) CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 22 Hard Drive: Dell Precision M6400 Service Manual 1 HDD1 2 pull tab 6. Remove the two M3 x 3-mm screws that secure the pull tab to the HDD1. 7. Set the pull tab aside to use with the replacement HDD1.
  • Page 23 After Working on Your Computer. 6. Install the operating system, drivers, and utilities for your computer, as needed. For more information, see the Setup and Quick Reference Guide that shipped with your computer or at support.dell.com. Removing the Secondary Hard Drive (HDD2) CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 24 After Working on Your Computer. 8. Install the operating system, drivers, and utilities for your computer, as needed. For more information, see the Setup and Quick Reference Guide that shipped with your computer at support.dell.com. Back to Contents Page file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM]...

  • Page 25: Removing The Optical Drive

    Optical Drive: Dell Precision M6400 Service Manual Back to Contents Page Optical Drive Dell Precision™ M6400 Service Manual Removing the Optical Drive Replacing the Optical Drive Removing the Optical Drive CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 26 Optical Drive: Dell Precision M6400 Service Manual 1. Slide the optical drive into the media bay. 2. Replace the M2.5 x 8-mm screw. 3. Follow the procedures in After Working on Your Computer. Back to Contents Page file:///T|/htdocs/systems/wsm6400/en/sm/optical.htm[11/16/2012 10:26:28 AM]...

  • Page 27: Removing The Wlan/Wimax Card

    WLAN/WiMax Card: Dell Precision M6400 Service Manual Back to Contents Page WLAN/WiMax Card Dell Precision™ M6400 Service Manual Removing the WLAN/WiMax Card Replacing the WLAN/WiMax Card CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 28: Replacing The Wlan/Wimax Card

    WLAN/WiMax Card: Dell Precision M6400 Service Manual WLAN/WiMax card card connector Replacing the WLAN/WiMax Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card.

  • Page 29: Removing A Wwan Card

    WWAN Card: Dell Precision M6400 Service Manual Back to Contents Page WWAN Card Dell Precision™ M6400 Service Manual Removing a WWAN Card Replacing a WWAN Card CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 30: Replacing A Wwan Card

    WWAN Card: Dell Precision M6400 Service Manual WWAN card card connector Replacing a WWAN Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card.

  • Page 31: Bluetooth Wireless Technology

    UWB WPAN Card and WPAN Card With Bluetooth®Wireless Technology: Dell Precision M6400 Service Manual Back to Contents Page UWB WPAN Card and WPAN Card With Bluetooth®Wireless Technology Dell Precision™ M6400 Service Manual Removing a WPAN Card Replacing a WPAN Card...

  • Page 32: Replacing A Wpan Card

    UWB WPAN Card and WPAN Card With Bluetooth®Wireless Technology: Dell Precision M6400 Service Manual WPAN card card connector Replacing a WPAN Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card.

  • Page 33: Removing A Memory Module

    See "Specifications" in your Setup and Quick Reference Guide for information on the memory supported by your computer. Install only memory modules that are intended for your computer. NOTE: Memory modules purchased from Dell are covered under your computer warranty. Removing a Memory Module CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 34: Replacing A Memory Module

    Memory: Dell Precision M6400 Service Manual memory module securing clips (2) DIMM A and DIMM B DIMM C and DIMM D Replacing a Memory Module CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
  • Page 35 Memory: Dell Precision M6400 Service Manual notch DIMM A and DIMM B DIMM C and DIMM D 3. To replace DIMM A or DIMM B: a. Replace the keyboard (see Replacing the Keyboard). b. Replace the LED cover (see Replacing the LED Cover).

  • Page 36: Removing The Coin-Cell Battery

    Coin-Cell Battery: Dell Precision M6400 Service Manual Back to Contents Page Coin-Cell Battery Dell Precision™ M6400 Service Manual Removing the Coin-Cell Battery Replacing the Coin-Cell Battery Removing the Coin-Cell Battery CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 37 Coin-Cell Battery: Dell Precision M6400 Service Manual coin-cell battery coin-cell battery cable 3. Replace the base assembly cover (see Replacing the Base Assembly Cover). 4. Follow the procedures in After Working on Your Computer. Back to Contents Page file:///T|/htdocs/systems/wsm6400/en/sm/coinbatt.htm[11/16/2012 10:26:43 AM]...

  • Page 38: Removing The Led Cover

    LED Cover: Dell Precision M6400 Service Manual Back to Contents Page LED Cover Dell Precision™ M6400 Service Manual Removing the LED Cover Replacing the LED Cover Removing the LED Cover CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 39 LED Cover: Dell Precision M6400 Service Manual Back to Contents Page file:///T|/htdocs/systems/wsm6400/en/sm/ledcvr.htm[11/16/2012 10:26:45 AM]...

  • Page 40: Removing The Keyboard

    Keyboard: Dell Precision M6400 Service Manual Back to Contents Page Keyboard Dell Precision™ M6400 Service Manual Removing the Keyboard Replacing the Keyboard Removing the Keyboard CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
  • Page 41 Keyboard: Dell Precision M6400 Service Manual NOTICE: The key caps on the keyboard are fragile, easily dislodged, and time- consuming to replace. Exercise care when removing and handling the keyboard. 1. Align the notch on the center metal pull tab with the alignment tab on the computer.
  • Page 42 Edge-to-Edge Display: Dell Precision M6400 Service Manual Back to Contents Page Edge-to-Edge Display Dell Precision™ M6400 Service Manual Removing the Edge-to-Edge Display Replacing the Edge-to-Edge Display Removing the Edge-to-Edge Display CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 43 Edge-to-Edge Display: Dell Precision M6400 Service Manual 1 M2.5 x 5-mm screws (2) on left hinge 2 M2.5 x 5-mm screws (2) on right hinge 9. Pull the wireless antenna cables up through the computer. 10. Remove the LVDS captive screw.
  • Page 44 Edge-to-Edge Display: Dell Precision M6400 Service Manual Replacing the Edge-to-Edge Display CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 45: Removing The Display Bezel

    LED and CCFL Displays: Dell Precision M6400 Service Manual Back to Contents Page LED and CCFL Displays Dell Precision™ M6400 Service Manual Removing the Display Bezel Removing the Microphone/Camera Board Replacing the Display Bezel Replacing the Microphone/Camera Board Removing the Display Panel...

  • Page 46: Replacing The Display Bezel

    LED and CCFL Displays: Dell Precision M6400 Service Manual 1 left side of bezel 2 top of bezel 3 right side of bezel 4 M2.5 x 5-mm screws (2) 5 display assembly 6 bottom of bezel Replacing the Display Bezel...

  • Page 47: Removing The Display Panel

    LED and CCFL Displays: Dell Precision M6400 Service Manual 1 display bezel 2 M2.5 x 5-mm screws (2) 3 hinges 4 display cover 5. Follow the procedures in After Working on Your Computer. Removing the Display Panel CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 48 LED and CCFL Displays: Dell Precision M6400 Service Manual 1 M2 x 3-mm screws (8) 2 display panel 3 M2 x 3-mm screws (2) 4 bracket 5 antenna cables 5 display cover 5. Lift the display panel out of the display cover.

  • Page 49: Replacing The Display Panel

    LED and CCFL Displays: Dell Precision M6400 Service Manual 1 underside of display panel 2 cables (2) 3 cable connector 4 cable connector 5 release tabs 7. Remove two M2 x 3-mm screws along the top of the panel to remove the bracket.
  • Page 50 LED and CCFL Displays: Dell Precision M6400 Service Manual two in the bracket along the top of the display panel. 5. Replace the display bezel (see Replacing the Display Bezel). 6. Follow the procedures in After Working on Your Computer.
  • Page 51 LED and CCFL Displays: Dell Precision M6400 Service Manual 5. Follow the procedures in After Working on Your Computer. Removing the Microphone/Camera Board CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 52: Removing The Display Assembly

    LED and CCFL Displays: Dell Precision M6400 Service Manual 5. Follow the procedures in After Working on Your Computer. Removing the Display Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 53: Replacing The Display Assembly

    LED and CCFL Displays: Dell Precision M6400 Service Manual 1 M2.5 x 5-mm screws (2) on left hinge 2 M2.5 x 5-mm screws (2) on right hinge 9. Pull the wireless antenna cables up through the computer. 10. Remove the LVDS captive screw.

  • Page 54: Removing The Display Cover

    LED and CCFL Displays: Dell Precision M6400 Service Manual 5. Replace the LVDS captive screw. 6. Thread the WWAN, WLAN, and WPAN antenna cables through the computer. 7. Replace the keyboard (see Replacing the Keyboard). 8. Replace the LED cover (see Replacing the LED Cover).
  • Page 55 LED and CCFL Displays: Dell Precision M6400 Service Manual Back to Contents Page file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM]...

  • Page 56: Removing The Palm Rest Assembly

    Palm Rest Assembly: Dell Precision M6400 Service Manual Back to Contents Page Palm Rest Assembly Dell Precision™ M6400 Service Manual Removing the Palm Rest Assembly Replacing the Palm Rest Assembly Removing the Palm Rest Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 57: Replacing The Palm Rest Assembly

    Palm Rest Assembly: Dell Precision M6400 Service Manual 1 2 x 3-mm screws (9) 10. Disconnect the biometer, speaker, touch pad, contactless smart card, and power cables from the system board. NOTICE: Do not use force to separate the palm rest from the computer. If you encounter resistance, gently flex or apply pressure to the palm rest, or move along the edge, working away from the area of resistance, until the palm rest is free.
  • Page 58 Palm Rest Assembly: Dell Precision M6400 Service Manual CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance. 1. Place the palm rest on the computer, then gently press around the edges to firmly snap the palm rest to the base assembly.

  • Page 59: Removing The Fan

    Fan: Dell Precision M6400 Service Manual Back to Contents Page Dell Precision™ M6400 Service Manual Removing the Fan Replacing the Fan Removing the Fan CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 60: Replacing The Fan

    Fan: Dell Precision M6400 Service Manual 3 fan cable Replacing the Fan CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 61: Removing The Processor Heatsink Assembly

    Processor Heatsink Assembly: Dell Precision M6400 Service Manual Back to Contents Page Processor Heatsink Assembly Dell Precision™ M6400 Service Manual Removing the Processor Heatsink Assembly Replacing the Processor Heatsink Assembly Removing the Processor Heatsink Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 62: Replacing The Processor Heatsink Assembly

    Processor Heatsink Assembly: Dell Precision M6400 Service Manual Replacing the Processor Heatsink Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
  • Page 63 Video Card/Heatsink Assembly: Dell Precision M6400 Service Manual Back to Contents Page Video Card/Heatsink Assembly Dell Precision™ M6400 Service Manual Removing the Video Card/Heatsink Assembly Replacing the Video Card/Heatsink Assembly Removing the Video Card/Heatsink Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 64 Video Card/Heatsink Assembly: Dell Precision M6400 Service Manual 1 video card/heatsink assembly 2 captive screws (3) 3 fan cable Replacing the Video Card/Heatsink Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 65: Removing The Processor Module

    Processor Module: Dell Precision M6400 Service Manual Back to Contents Page Processor Module Dell Precision™ M6400 Service Manual Removing the Processor Module Replacing the Processor Module Removing the Processor Module CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 66: Replacing The Processor Module

    Processor Module: Dell Precision M6400 Service Manual until it comes to the cam stop. 1 ZIF socket 2 ZIF-socket cam screw NOTICE: To ensure maximum cooling for the processor, do not touch the heat transfer areas on the processor heatsink assembly. The oils in your skin can reduce the heat transfer capability of the thermal pads.
  • Page 67 Processor Module: Dell Precision M6400 Service Manual When the processor module is properly seated, all four corners are aligned at the same height. If one or more corners of the module are higher than the others, the module is not seated properly.

  • Page 68: Removing The Card Cage

    Card Cage: Dell Precision M6400 Service Manual Back to Contents Page Card Cage Dell Precision™ M6400 Service Manual Removing the Card Cage Replacing the Card Cage Removing the Card Cage CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

  • Page 69: Replacing The Card Cage

    Card Cage: Dell Precision M6400 Service Manual Replacing the Card Cage CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
  • Page 70 IEEE 1394 Card: Dell Precision M6400 Service Manual Back to Contents Page IEEE 1394 Card Dell Precision™ M6400 Service Manual Removing the IEEE 1394 Card Replacing the IEEE 1394 Card Removing the IEEE 1394 Card CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 71 IEEE 1394 Card: Dell Precision M6400 Service Manual computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance. 1. Place the IEEE 1394 card in at an angle to fit the connector into the base assembly.

  • Page 72: Left I/O Board

    Left I/O Board: Dell Precision M6400 Service Manual Back to Contents Page Left I/O Board Dell Precision™ M6400 Service Manual Removing the Left I/O Board Replacing the Left I/O Board Removing the Left I/O Board CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 73 Left I/O Board: Dell Precision M6400 Service Manual Replacing the Left I/O Board CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.
  • Page 74 Right I/O Board: Dell Precision M6400 Service Manual Back to Contents Page Right I/O Board Dell Precision™ M6400 Service Manual Removing the Right I/O Board Replacing the Right I/O Board Removing the Right I/O Board CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
  • Page 75 Right I/O Board: Dell Precision M6400 Service Manual 5 right I/O board Replacing the Right I/O Board CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

  • Page 76: Removing The System Board

    System Board: Dell Precision M6400 Service Manual Back to Contents Page System Board Dell Precision™ M6400 Service Manual Removing the System Board Replacing the System Board The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer.

  • Page 77: Replacing The System Board

    System Board: Dell Precision M6400 Service Manual 23. Remove the two M2.5 x 8-mm screws from the bracket and remove the bracket. 1 M2.5 x 8-mm screws (2) 2 system board 3 M2.5 x 5-mm screws (8) 4 bracket 24. Lift the system board out of the base assembly.
  • Page 78 26. Enter the system setup program to update the BIOS on the new system board with the computer Service Tag. For information on the system setup program, see the Dell™ Technology Guide at support.dell.com. Back to Contents Page...

  • Page 79: Flashing The Bios From A Cd

    1. Ensure that the AC adapter is plugged in, the main battery is properly installed, and a network cable is attached. 2. Turn on the computer. 3. Locate the latest BIOS update file for your computer at support.dell.com. 4. Click Download Now to download the file.
  • Page 80 Flashing the BIOS: Dell Precision M6400 Service Manual The file downloads to your desktop. 8. Click Close if the Download Complete window appears. The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.
  • Page 81 Biometer Cable: Dell Precision M6400 Service Manual Back to Contents Page Biometer Cable Dell Precision™ M6400 Service Manual Removing the Biometer Cable Replacing the Biometer Cable Removing the Biometer Cable CAUTION: Before working inside your computer, read the safety information that shipped with your computer.

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