Page 2 - Troubleshooting; Troubleshooting Tools; Diagnostic Lights; Diagnostic Light Codes During POST
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] Back to Contents Page Troubleshooting Dell Precision™ M6400 Service Manual Troubleshooting Tools Solving Problems Dell Technical Update Service Troubleshooting Tools Diagn...
Page 3 - Hardware Troubleshooter; Dell Diagnostics
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] memory is unsupported. restart the computer. If the computer starts normally, continue to install additional memory modules (one at a time) until you have identified a fau...
Page 4 - When to Use the Dell Diagnostics; Starting the Dell Diagnostics From Your Hard Drive
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance. When to Use the ...
Page 7 - Error Messages
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] The Dell Diagnostics obtains configuration information for all devices from System Setup, memory, and various internal tests, and displays the information in the device li...
Page 8 - Battery Problems; Drive Problems
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] If a peripheral device does not work, ensure that the device is properly connected. If an error message appears on the screen, write down the exact message. This message m...
Page 9 - Optical drive problems; Problems writing to an optical drive; Hard drive problems
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] Optical drive problems NOTE: High-speed optical drive vibration is normal and may cause noise, which does not indicate a defect in the drive or the media. NOTE: Because of...
Page 10 - Lockups and Software Problems; The computer does not start up; The computer stops responding
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] Ensure that the cable for the IEEE 1394 device is properly inserted into the device and into the connector on the computer Ensure that the IEEE 1394 device is enabled in s...
Page 11 - A program crashes repeatedly; A program is designed for an earlier Windows operating system; A solid blue screen appears; Other software problems
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] 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 re...
Page 12 - Memory Problems
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] Back up your files immediately Use a virus-scanning program to check the hard drive, floppy disks, CDs, or DVDs Save and close any open files or programs and shut down you...
Page 13 - No sound from speakers; No sound from headphones; Video and Display Problems; Only part of the display is readable
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] No sound from speakers NOTE: The volume control in MP3 and other media players may override the Windows volume setting. Always check to ensure that the volume on the media...
Page 14 - Dell Technical Update Service
Troubleshooting: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM] Connect an external monitor — 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 br...
Page 15 - Working on Your Computer; Recommended Tools
Working on Your Computer: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/before.htm[11/16/2012 10:26:20 AM] Back to Contents Page Working on Your Computer Dell Precision™ M6400 Service Manual Recommended Tools Before Working on Your Computer After Working on Your Compute...
Page 17 - After Working on Your Computer
Working on Your Computer: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/before.htm[11/16/2012 10:26:20 AM] 8. Turn the computer topside up, open the display, and press the power button to ground the system board. After Working on Your Computer After you have completed t...
Page 18 - Base Assembly; Removing the Base Assembly Cover; Replacing the Base Assembly Cover
Base Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/base.htm[11/16/2012 10:26:22 AM] 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...
Page 19 - Removing the Base Assembly
Base Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/base.htm[11/16/2012 10:26:22 AM] 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 Comp...
Page 21 - Hard Drive
Hard Drive: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM] Back to Contents Page Hard Drive Dell Precision™ M6400 Service Manual Removing the Primary Hard Drive (HDD1) Replacing the Primary Hard Drive (HDD1) Removing the Secondary Hard Dri...
Page 24 - Replacing the Secondary Hard Drive (HDD2)
Hard Drive: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM] 7. Remove the interposer from the HDD2 or the place-holder, and set the interposer aside. Replacing the Secondary Hard Drive (HDD2) CAUTION: Before working inside your computer, re...
Page 25 - Optical Drive; Removing the Optical Drive; Replacing the Optical Drive
Optical Drive: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/optical.htm[11/16/2012 10:26:28 AM] 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 wo...
Page 27 - Removing the WLAN/WiMax Card
WLAN/WiMax Card: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/wlan.htm[11/16/2012 10:26:31 AM] 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 comp...
Page 28 - Replacing the WLAN/WiMax Card
WLAN/WiMax Card: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/wlan.htm[11/16/2012 10:26:31 AM] 1 WLAN/WiMax card 2 card connector Replacing the WLAN/WiMax Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on...
Page 29 - WWAN Card; Removing a WWAN Card
WWAN Card: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/wwan.htm[11/16/2012 10:26:34 AM] 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 inform...
Page 30 - Replacing a WWAN Card
WWAN Card: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/wwan.htm[11/16/2012 10:26:34 AM] 1 WWAN card 2 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...
Page 31 - UWB WPAN Card and WPAN Card With; Removing a WPAN Card
UWB WPAN Card and WPAN Card With Bluetooth®Wireless Technology: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/wpan.htm[11/16/2012 10:26:36 AM] Back to Contents Page UWB WPAN Card and WPAN Card With Bluetooth®Wireless Technology Dell Precision™ M6400 Service Manual Remov...
Page 32 - Replacing a WPAN Card
UWB WPAN Card and WPAN Card With Bluetooth®Wireless Technology: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/wpan.htm[11/16/2012 10:26:36 AM] 1 WPAN card 2 card connector Replacing a WPAN Card NOTICE: The connectors are keyed to ensure correct insertion. If you feel re...
Page 33 - Memory; Removing a Memory Module
Memory: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/memory.htm[11/16/2012 10:26:40 AM] Back to Contents Page Memory Dell Precision™ M6400 Service Manual Removing a Memory Module Replacing a Memory Module Your computer has four user -accessible SODIMM sockets: DIMM A a...
Page 34 - Replacing a Memory Module
Memory: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/memory.htm[11/16/2012 10:26:40 AM] 1 memory module 2 securing clips (2) 3 DIMM A and DIMM B 4 DIMM C and DIMM D Replacing a Memory Module CAUTION: Before working inside your computer, read the safety information that...
Page 36 - Removing the Coin-Cell Battery; Replacing the Coin-Cell Battery
Coin-Cell Battery: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/coinbatt.htm[11/16/2012 10:26:43 AM] 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 Batte...
Page 38 - LED Cover; Removing the LED Cover; Replacing the LED Cover
LED Cover: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/ledcvr.htm[11/16/2012 10:26:45 AM] 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 com...
Page 40 - Keyboard; Removing the Keyboard; Replacing the Keyboard
Keyboard: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/keyboard.htm[11/16/2012 10:26:47 AM] Back to Contents Page Keyboard Dell Precision™ M6400 Service Manual Removing the Keyboard Replacing the Keyboard Removing the Keyboard CAUTION: Before working inside your comput...
Page 45 - LED and CCFL Displays; Removing the Display Bezel
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] Back to Contents Page LED and CCFL Displays Dell Precision™ M6400 Service Manual Removing the Display Bezel Replacing the Display Bezel Removing the Display Panel R...
Page 46 - Replacing the Display Bezel
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 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 CAUTION: Before w...
Page 47 - Removing the Display Panel
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 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: Be...
Page 49 - Replacing the Display Panel
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 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 ...
Page 50 - Removing the Inverter Board (CCFL Display Only); Replacing the Inverter Board (CCFL Display Only)
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 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...
Page 51 - Removing the Microphone/Camera Board; Replacing the Microphone/Camera Board
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 5. Follow the procedures in After Working on Your Computer . Removing the Microphone/Camera Board CAUTION: Before working inside your computer, read the safety info...
Page 52 - Removing the Display Assembly
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 5. Follow the procedures in After Working on Your Computer . Removing the Display Assembly CAUTION: Before working inside your computer, read the safety information...
Page 53 - Replacing the Display Assembly
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 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 capt...
Page 54 - Removing the Display Cover
LED and CCFL Displays: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/displayb.htm[11/16/2012 10:27:02 AM] 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....
Page 56 - Palm Rest Assembly; Removing the Palm Rest Assembly
Palm Rest Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/palmrest.htm[11/16/2012 10:27:08 AM] 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 A...
Page 57 - Replacing the Palm Rest Assembly
Palm Rest Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/palmrest.htm[11/16/2012 10:27:08 AM] 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 sepa...
Page 59 - Fan; Removing the Fan
Fan: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/fan.htm[11/16/2012 10:27:10 AM] Back to Contents Page Fan Dell Precision™ M6400 Service Manual Removing the Fan Replacing the Fan Removing the Fan CAUTION: Before working inside your computer, read the safety informatio...
Page 60 - Replacing the Fan
Fan: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/fan.htm[11/16/2012 10:27:10 AM] 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, ...
Page 61 - Processor Heatsink Assembly; Removing the Processor Heatsink Assembly
Processor Heatsink Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/cpucool.htm[11/16/2012 10:27:12 AM] Back to Contents Page Processor Heatsink Assembly Dell Precision™ M6400 Service Manual Removing the Processor Heatsink Assembly Replacing the Processor Heatsin...
Page 62 - Replacing the Processor Heatsink Assembly
Processor Heatsink Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/cpucool.htm[11/16/2012 10:27:12 AM] Replacing the Processor Heatsink Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additi...
Page 63 - Video Card/Heatsink Assembly; Removing the Video Card/Heatsink Assembly
Video Card/Heatsink Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/video.htm[11/16/2012 10:27:14 AM] Back to Contents Page Video Card/Heatsink Assembly Dell Precision™ M6400 Service Manual Removing the Video Card/Heatsink Assembly Replacing the Video Card/Heats...
Page 64 - Replacing the Video Card/Heatsink Assembly
Video Card/Heatsink Assembly: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/video.htm[11/16/2012 10:27:14 AM] 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...
Page 65 - Processor Module; Removing the Processor Module
Processor Module: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/cpu.htm[11/16/2012 10:27:18 AM] Back to Contents Page Processor Module Dell Precision™ M6400 Service Manual Removing the Processor Module Replacing the Processor Module Removing the Processor Module CAUTION...
Page 66 - Replacing the Processor Module
Processor Module: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/cpu.htm[11/16/2012 10:27:18 AM] 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 processo...
Page 68 - Card Cage; Removing the Card Cage
Card Cage: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/cardcage.htm[11/16/2012 10:27:21 AM] 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 c...
Page 69 - Replacing the Card Cage
Card Cage: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/cardcage.htm[11/16/2012 10:27:21 AM] Replacing the Card Cage CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices informat...
Page 70 - Removing the IEEE 1394 Card; Replacing the IEEE 1394 Card
IEEE 1394 Card: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/1394.htm[11/16/2012 10:27:22 AM] 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 ...
Page 72 - Removing the Left I/O Board
Left I/O Board: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/leftio.htm[11/16/2012 10:27:25 AM] 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: Befor...
Page 73 - Replacing the Left I/O Board
Left I/O Board: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/leftio.htm[11/16/2012 10:27:25 AM] 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 ...
Page 74 - Removing the Right I/O Board
Right I/O Board: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/rightio.htm[11/16/2012 10:27:27 AM] 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:...
Page 75 - Replacing the Right I/O Board
Right I/O Board: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/rightio.htm[11/16/2012 10:27:27 AM] 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 s...
Page 76 - System Board; Removing the System Board
System Board: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/sysboard.htm[11/16/2012 10:27:29 AM] 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 Servic...
Page 77 - Replacing the System Board
System Board: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/sysboard.htm[11/16/2012 10:27:29 AM] 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 board3 M2.5 x 5-mm screws (8) 4 bracket 24. Lift the system ...
Page 79 - Flashing the BIOS; Flashing the BIOS From a CD
Flashing the BIOS: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/bios.htm[11/16/2012 10:27:31 AM] Back to Contents Page Flashing the BIOS Dell Precision™ M6400 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BIOS-update program CD i...
Page 81 - Biometer Cable; Removing the Biometer Cable; Replacing the Biometer Cable
Biometer Cable: Dell Precision M6400 Service Manual file:///T|/htdocs/systems/wsm6400/en/sm/biocable.htm[11/16/2012 10:27:32 AM] Back to Contents Page Biometer Cable Dell Precision™ M6400 Service Manual Removing the Biometer Cable Replacing the Biometer Cable Removing the Biometer Cable CAUTION: Bef...
