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

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

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® Windows® operating systems are not applicable.

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]

Troubleshooting: Dell Precision M6400 Service Manual

Back to Contents Page

Troubleshooting

Dell Precision™ M6400 Service Manual

Troubleshooting Tools Solving Problems Dell Technical Update Service

Troubleshooting Tools

Diagnostic Lights

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.

Your computer has three keyboard status lights located above the keyboard. During normal operation, the keyboard status lights display the current status (on or off) of the Num Lock, Caps Lock, and Scroll Lock features. If the computer starts without error, the lights flash, and then turn off. If the computer malfunctions, however, you can use the status of the lights to help identify the problem.

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). If the computer malfunctions, the individual lights display a status of either On

, Off , or Flashing .

Light Pattern

Problem Description

No memory modules are detected.

Suggested Resolution

If two or more memory modules are installed, remove the modules (see Removing a

Memory Module), then reinstall one module (see Replacing a Memory Module) and

restart the computer. If the computer starts normally, continue to install additional memory modules (one at a time) until you have identified a faulty module or reinstalled all modules without error. If available, install working memory of the same type into your computer (see

Memory

If the problem persists, contact Dell Support.

Memory modules are detected, but a memory failure has occurred.

Memory failed to initialize or

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

If two or more memory modules are installed, remove the modules (see Removing a

Memory Module), then reinstall one module (see Replacing a Memory Module) and

Memory

If the problem persists, contact Dell Support.

If two or more memory modules are installed, remove the modules (see Removing a

Memory Module), then reinstall one module (see Replacing a Memory Module) and

Troubleshooting: Dell Precision M6400 Service Manual

memory is

restart the computer. If the computer starts normally, continue to install additional

CAUTION: Before working inside your computer, read the safety information that shipped with your

unsupported.

System board failure has occurred.

A possible processor failure has occurred.

A possible graphics card/video failure has occurred.

A possible LCD failure has occurred.

System failed on hard drive initialization.

memory modules (one at a time) until you have identified a faulty module or reinstalled all modules without error. If available, install working memory of the same type into your computer (see

Memory

If the problem persists, contact Dell Support.

Contact Dell Support.

Reseat the processor (see Processor Module). If the problem persists, contact Dell Support.

Reseat any installed graphics cards. If available, install a working graphics card into your computer. If the problem persists, contact Dell Support.

Reseat the LCD cable (see Edge-to-Edge Display). If the problem persists, contact Dell Support.

Reseat the hard drive (see Hard Drive). If the problem persists, contact Dell Support.

System failed in Option ROM initialization.

If you have added any plug-in hardware with an option ROM, try removing or reseating it. If the problem persists, contact Dell Support.

Hardware Troubleshooter

If a device is either not detected during the operating system setup or is detected, but incorrectly configured, you can use the Hardware Troubleshooter to resolve the incompatibility.

Microsoft® Windows® XP:

1. Click Start® Help and Support.

2. Type hardware troubleshooter in the search field and press <Enter> to start the search.

3. In the Fix a Problem section, click Hardware Troubleshooter.

4. In the Hardware Troubleshooter list, select the option that best describes the problem and click Next to follow the remaining troubleshooting steps.

Microsoft Windows Vista®:

1. Click the Windows Vista start button

, and click Help and Support.

2. Type hardware troubleshooter in the search field and press <Enter> to start the search.

3. In the search results, select the option that best describes the problem and follow the remaining troubleshooting steps.

Dell Diagnostics

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Troubleshooting: 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.

When to Use the Dell Diagnostics

If you experience a problem with your computer, perform the checks in Solving Problems, and then run the Dell Diagnostics before contacting Dell for assistance.

Start the Dell Diagnostics from your hard drive or from the Drivers and Utilities media provided with your computer.

NOTE: The Drivers and Utilities media is optional and may not ship with your computer. NOTE: The Dell Diagnostics only operate on Dell computers.

Starting the Dell Diagnostics From Your Hard Drive

Before running the Dell Diagnostics, enter system setup to review your computer's configuration information, and ensure that the device you want to test is displayed in system setup and is active. For more information on using the system setup program, see the Dell™ Technology Guide at support.dell.com.

The Dell Diagnostics is located on a separate diagnostic utility partition on your hard drive.

NOTE: If the computer is connected to a docking device (docked), undock it. See the documentation that came with

your docking device for instructions.

NOTE: If your computer does not display a screen image, contact Dell Support.

1. Ensure that the computer is connected to an electrical outlet that is known to be working properly.

2. Press and hold the <Fn> key, then turn on your computer.

NOTE: Alternatively, you can select Diagnostics from the one-time boot menu at startup.

The computer runs the Pre-boot System Assessment (PSA), a series of initial tests of your system board, keyboard, display, memory, hard drive, etc.

During the assessment, answer any questions that appear. If failures are detected during the Pre-boot System Assessment, write down the error code(s) and contact

Dell Support. If the Pre-boot System Assessment completes successfully, the following message appears: "Booting

Dell Diagnostic Utility Partition. Press any key to continue."

NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics

from your Drivers and Utilities media (see Starting the Dell Diagnostics From the Drivers and Utilities Media

3. Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive.

4. Press <Tab> to select Test System and then press <Enter>.

NOTE: It is recommended that you select Test System to run a complete test on your computer. Selecting Test

Memory initiates the extended memory test, which can take up to thirty minutes or more to complete. When

the test completes, record the test results and then press any key to return to the previous menu.

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

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Troubleshooting: Dell Precision M6400 Service Manual

NOTE: Write down any error codes and problem descriptions exactly as they appear and follow the instructions

on the screen.

6. After all tests have completed, close the test window to return to the Dell Diagnostics Main Menu.

7. Close the Main Menu window to exit the Dell Diagnostics and restart the computer.

NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics

from your Drivers and Utilities media (see Starting the Dell Diagnostics From the Drivers and Utilities Media

Starting the Dell Diagnostics From the Drivers and Utilities Media

1. Insert the Drivers and Utilities media into the optical drive.

2. Restart your computer.

3. When the DELL logo appears, press <F12> immediately.

NOTE: Keyboard failure may result when a key is held down for extended periods of time. To avoid possible

keyboard failure, press and release <F12> in even intervals to open the Boot Device Menu.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop, then shut down your computer and try again.

4. When the boot device list appears, use the up- or down- arrow keys to highlight CD/DVD/CD-RW Drive then press <Enter>.

NOTE: Using the one-time boot menu changes the boot sequence for the current boot only. Upon restart, the

computer boots according to the boot sequence specified in system setup.

5. Press any key to confirm that you want to start from the CD/DVD.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop, then shut down your computer and try again.

6. Type 1 to Run the 32 Bit Dell Diagnostics.

7. At the Dell Diagnostics Menu, type 1 to select Dell 32-bit Diagnostics for Resource CD (graphical user interface).

8. Press <Tab> to select Test System and then press <Enter>.

NOTE: It is recommended that you select Test System to run a complete test on your computer. Selecting Test

Memory initiates the extended memory test, which can take up to thirty minutes or more to complete. When

the test completes, record the test results and then press any key to return to the previous menu.

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

NOTE: Write down any error codes and problem descriptions exactly as they appear and follow the instructions

on the screen.

10. After all tests have completed, close the test window to return to the Dell Diagnostics Main Menu.

11. Close the Main Menu window to exit the Dell Diagnostics and restart the computer.

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Troubleshooting: Dell Precision M6400 Service Manual

12. Remove the Drivers and Utilities media from the optical drive.

Dell Diagnostics Main Menu

After the Dell Diagnostics loads, the following menu appears:

Option Function

Test Memory Run the stand-alone memory test Test System Run system diagnostics Exit Exit the diagnostics

Press <Tab> to select the test you want to run and then press <Enter>.

NOTE: It is recommended that you select Test System to run a complete test on your computer. Selecting Test

Memory initiates the extended memory test, which can take up to thirty minutes or more to complete. When the test

completes, record the test results and then press any key to return to this menu.

After Test System is selected, the following menu appears:

Option Function

Express Test

Extended Test

Custom Test

Symptom Tree

NOTE: It is recommended that you select Extended Test to perform a more thorough check of devices in the

computer.

For any problem encountered during a test, a message appears with an error code and a description of the problem. Write down the error code and problem description exactly as it appears and follow the instructions on the screen. If you cannot resolve the problem, contact 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.

Performs a quick test of devices in the system. This typically can take 10 to 20 minutes.

NOTE: The Express Test requires no interaction on your part. Run Express Test first to increase the possibility

of tracing a problem quickly. Performs a thorough check of devices in the system. This typically can take an hour or more.

NOTE: The Extended Test periodically requires your input to answer specific questions.

Use to test a specific device or customize the tests to be run.

This option allows you to select tests based on a symptom of the problem you are having. This option lists the most common symptoms.

The following tabs provide additional information for tests run from the Custom Test or Symptom Tree option:

Tab Function

Results Errors Displays error conditions encountered, error codes, and the problem description. Help Describes the test and any requirements for running the test. Configuration Displays the hardware configuration for the selected device.

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Displays the results of the test and any error conditions encountered.

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.

Parameters Allows you to customize the test, if applicable, by changing the test settings.

Error Messages

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.

If the error message is not listed, see the documentation for the operating system or the program that was running when the message appeared.

A filename cannot contain any of the following characters: \ / : * ? " < > | — Do not use these characters in

filenames.

A required .DLL file was not found — The program that you are trying to open is missing an essential file. To remove and

then reinstall the program: Windows XP:

1. Click Start® Control Panel® Add or Remove Programs® Programs and Features.

2. Select the program you want to remove.

3. Click Uninstall.

4. See the program documentation for installation instructions.

Windows Vista:

1. Click Start

2. Select the program you want to remove.

3. Click Uninstall.

4. See the program documentation for installation instructions.

drive letter :\ is not accessible. The device is not ready — The drive cannot read the disk. Insert a disk into the drive

and try again.

Insert bootable media — Insert a bootable floppy disk, CD, or DVD.

Non-system disk error — Remove the floppy disk from the floppy drive and restart your computer.

Not enough memory or resources. Close some programs and try again — Close all windows and open the program

that you want to use. In some cases, you may have to restart your computer to restore computer resources. If so, run the program that you want to use first.

® Control Panel® Programs® Programs and Features.

Operating system not found — Contact Dell Support.

Solving Problems

Follow these tips when troubleshooting your computer:

If you added or removed a part before the problem started, review the installation procedures and ensure that the part is correctly installed.

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Troubleshooting: Dell Precision M6400 Service Manual

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 may help support personnel diagnose and fix the problem(s).

If an error message occurs in a program, see the program's documentation.

NOTE: The procedures in this document were written for the Windows default view, so they may not apply if you set

your Dell computer to the Windows Classic view.

Battery Problems

CAUTION: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery

only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.

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.

Drive Problems

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.

Ensure that Microsoft Windows Recognizes the drive —

Windows XP:

Click Start and click My Computer.

Windows Vista:

Click the Windows Vista Start button and click Computer.

If the drive is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive.

Test the drive —

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 —

See Hardware Troubleshooter

Run the Dell Diagnostics —

See Dell Diagnostics

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Troubleshooting: Dell Precision M6400 Service Manual

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 different regions worldwide and different disc formats, not all DVD titles work in all DVD drives.

Adjust the Windows volume control —

Click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up by clicking the slidebar and dragging it up. Ensure that the sound is not muted by clicking any boxes that are checked.

Check the speakers and subwoofer —

See Sound and Speaker Problems

Problems writing to an optical drive

Close other programs —

The optical drive must receive a steady stream of data during the writing process. If the stream is interrupted, an error occurs. Try closing all programs before you write to the optical.

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.

Hard drive problems

Run Check Disk —

Windows XP:

1. Click Start and click My Computer.

2. Right-click Local Disk C:.

3. Click Properties® Tools® Check Now.

4. Click Scan for and attempt recovery of bad sectors and click Start.

Windows Vista:

1. Click Start

2. Right-click Local Disk C:.

3. Click Properties® Tools® Check Now. The User Account Control window may appear. If you are an administrator on the computer, click Continue;

otherwise, contact your administrator to continue the desired action.

4. Follow the instructions on the screen.

and click Computer.

IEEE 1394 Device Problems

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.

NOTE: Your computer supports only IEEE 1394a standard.

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

Troubleshooting: Dell Precision M6400 Service Manual

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 system setup — For more information on using the system setup

program, see the Dell™ Technology Guide at support.dell.com.

Ensure that the IEEE 1394 device is recognized by Windows —

Windows XP:

1. Click Start and click Control Panel.

2. Under Pick a Category, click Performance and Maintenance® System® System Properties ® Hardware® Device Manager.

Windows Vista:

1. Click Start

2. Click Device Manager.

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.

® Control Panel® Hardware and Sound.

Lockups and Software Problems

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.

The computer does not start up

Check the diagnostic lights —

See Power Problems

Ensure that the power cable is firmly connected to the computer and to the electrical outlet

The computer stops responding

NOTICE: You may lose data if you are unable to perform an operating system shutdown.

Turn the computer off — If you are unable to get a response by pressing a key on your keyboard or moving your mouse,

press and hold the power button for at least 8 to 10 seconds (until the computer turns off), and then restart your computer.

A program stops responding

End the program —

file:///T|/htdocs/systems/wsm6400/en/sm/trouble.htm[11/16/2012 10:26:15 AM]

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.

Check the software documentation —

If necessary, uninstall and then reinstall the program.

A program is designed for an earlier Windows operating system

Run the Program Compatibility Wizard —

Windows XP: The Program Compatibility Wizard configures a program so that it runs in an environment similar to non-XP operating system

environments.

1. Click Start® All Programs® Accessories® Program Compatibility Wizard® Next.

2. Follow the instructions on the screen.

Windows Vista: The Program Compatibility Wizard configures a program so that it runs in an environment similar to non-Windows Vista

operating system environments.

1. Click Start

2. In the welcome screen, click Next.

3. Follow the instructions on the screen.

® Control Panel® Programs® Use an older program with this version of Windows.

A solid blue screen appears

Turn the computer off —

If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds (until the computer turns off), and then restart your computer.

Working on Your Computer: Dell Precision M6400 Service Manual

Back to Contents Page

Working on Your Computer

Dell Precision™ M6400 Service Manual

Recommended Tools Before Working on Your Computer After Working on Your Computer

This document provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that:

You have performed the steps in Before Working on Your Computer. You have 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.

NOTE: The color of your computer and certain computer components may appear differently than shown in this

document.

Recommended Tools

The procedures in this document may require the following tools:

Small flat-blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update (see the Dell Support website at support.dell.com)

Before Working on Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.

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.

CAUTION: Many repairs may only be done by a certified service technician. You should only perform

troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. 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.

NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by

periodically touching an unpainted metal surface, such as a connector on the back of the computer.

NOTICE: Handle components 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.

NOTICE: When disconnecting a cable, pull on the cable's connector or on its strain-relief loop, not on the

cable itself. For cable connectors with locking tabs, press inward on the locking tabs to release the connector. When connecting a cable, ensure that the connectors are correctly oriented and aligned to avoid damage to the connector and/or the connector's pins.

file:///T|/htdocs/systems/wsm6400/en/sm/before.htm[11/16/2012 10:26:20 AM]

Working on Your Computer: Dell Precision M6400 Service Manual

1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.

2. Shut down your computer.

In Windows XP, click Start® Shutdown® Shutdown.

In Windows Vista, click Start , click the arrow icon, and then click Shut Down to turn off your computer.

NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the

computer using the operating system, press and hold the power button for 4 seconds.

3. Disconnect your computer and all attached devices from their electrical outlets.

NOTICE: To disconnect a network cable, first unplug the cable from your computer, and then unplug it from

the network wall jack.

4. Disconnect any telephone or network cables from the computer.

NOTICE: To help prevent damage to the system board, you must remove the battery from the battery bay

before you service the computer.

5. Turn the computer upside down.

6. Slide the battery release latch and remove the battery.

1 battery 2 battery release latch

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.

file:///T|/htdocs/systems/wsm6400/en/sm/before.htm[11/16/2012 10:26:20 AM]

Working on Your Computer: Dell Precision M6400 Service Manual

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 the replacement procedures, ensure you connect the external devices, cards, and cables before turning 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.

2. Slide the battery into the battery bay and snap it into place.

3. Connect your computer and attached devices to their electrical outlets.

4. Turn on your computer.

Back to Contents Page

file:///T|/htdocs/systems/wsm6400/en/sm/before.htm[11/16/2012 10:26:20 AM]

Base Assembly: Dell Precision M6400 Service Manual

2. Slide the cover toward the back of the computer to engage the tabs and firmly attach the cover to the base assembly.

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. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

Removing the Base Assembly Cover

1. Follow the procedures in Before Working on Your Computer.

2. Close the display and turn the computer upside down.

3. Remove the two M2 x 3-mm screws.

4. Slide the cover toward the front of the computer to release the tabs from the base assembly.

5. Remove the cover from the base assembly.

1 M2 x 3-mm screws (2) 2 cover 3 bottom tabs (10) 4 front of the computer

Replacing the Base Assembly Cover

1. Align the tabs with the slots on the base assembly.

file:///T|/htdocs/systems/wsm6400/en/sm/base.htm[11/16/2012 10:26:22 AM]

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

3. Remove the primary hard drive (see Removing the Primary Hard Drive (HDD1)

Removing the Secondary Hard Drive (HDD2)

4. Remove the optical drive (see Removing the Optical Drive

5. Remove the LED cover (see Removing the LED Cover

6. Remove the keyboard (see Removing the Keyboard

7. Remove the display assembly (see Removing the Edge-to-Edge Display

8. Remove the palm rest (see Removing the Palm Rest Assembly

9. Remove the fan (see Removing the Fan

10. Remove the processor heatsink assembly (see Removing the Processor Heatsink Assembly

) and the secondary hard drive (see

or Removing the Display Assembly).

11. Remove the video card/heatsink assembly (see Removing the Video Card/Heatsink Assembly

12. Remove the card cage (see Removing the Card Cage

13. Remove the left I/O board (see Removing the Left I/O Board

14. Remove the right I/O board (see Removing the Right I/O Board

15. Remove the system board (see Removing the System Board

Replacing the Base Assembly

1. Replace the system board (see Replacing the System Board).

2. Replace the right I/O board (see Replacing the Right I/O Board

3. Replace the left I/O board (see Replacing the Left I/O Board

4. Replace the card cage (see Replacing the Card Cage

5. Replace the video card/heatsink assembly (see Replacing the Video Card/Heatsink Assembly

6. Replace the processor heatsink assembly (see Replacing the Processor Heatsink Assembly

7. Replace the fan (see Replacing the Fan

8. Replace the palm rest (see Replacing the Palm Rest Assembly

9. Replace the display assembly (see Replacing the Edge-to-Edge Display

10. Replace the keyboard (see Replacing the Keyboard

11. Replace the LED cover (see Replacing the LED Cover

file:///T|/htdocs/systems/wsm6400/en/sm/base.htm[11/16/2012 10:26:22 AM]

or Replacing the Display Assembly).

Base Assembly: Dell Precision M6400 Service Manual

12. Replace the optical drive (see Replacing the Optical Drive).

13. Replace the primary hard drive (see Replacing the Primary Hard Drive (HDD1)

Replacing the Secondary Hard Drive (HDD2)

14. Replace the base assembly cover (see Replacing the Base Assembly Cover

15. Follow the procedures in After Working on Your Computer

NOTE: If you use a BIOS update program disc to flash the BIOS, press <F12> before inserting the disc in order to set

the computer to boot from the disc for one time only. Otherwise, you must enter the system setup program to change the default boot order.

16. Flash update the BIOS (see Flashing the BIOS

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

for more information).

) and the secondary hard drive (see

file:///T|/htdocs/systems/wsm6400/en/sm/base.htm[11/16/2012 10:26:22 AM]

Hard Drive: Dell Precision M6400 Service Manual

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 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. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

CAUTION: Do not touch the metal housing of the hard drive if you remove the hard drive from the

computer while the drive is hot.

NOTICE: To prevent data loss, turn off your computer before removing the hard drive. Do not remove the

hard drive while the computer is on or in Sleep state.

NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive.

1. Follow the procedures in Before Working on Your Computer

2. Remove the base assembly cover (see Removing the Base Assembly Cover

3. Loosen the two captive screws on the HDD1 carrier, and remove the carrier.

4. Push in, then pull up on the safety loop to remove the cover.

1 HDD1 2 safety loop 3 captive screws (2) 4 carrier

5. Use the pull tab to disconnect the HDD1 from the connector on the system board, and remove the HDD1 from the computer.

file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM]

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.

1 HDD1 2 M3 x 3-mm screws (2) 3 pull tab

Replacing the Primary Hard Drive (HDD1)

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.

NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive.

NOTICE: Use firm and even pressure to slide the hard drive into place. Excessive force may result in

damage to the connector.

1. Attach the pull tab you removed in step 7

file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM]

of the removal procedure to the new HDD1.

Hard Drive: Dell Precision M6400 Service Manual

2. Place the HDD1 in the computer, and slide the HDD1 into the connector on the system board.

3. Replace the cover on the HDD1 and tighten the two captive screws.

4. Replace the base assembly cover (see Replacing the Base Assembly Cover

5. Follow the procedures in 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. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

CAUTION: Do not touch the metal housing of the hard drive if you remove the hard drive from the

computer while the drive is hot.

NOTICE: To prevent data loss, turn off your computer before removing the hard drive. Do not remove the

hard drive while the computer is on or in Sleep state.

NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive.

NOTE: The secondary hard drive is optional. If you did not order a secondary hard drive, the carrier will contain an

interposer board.

1. Follow the procedures in Working on Your Computer

2. Remove the base assembly cover (see Removing the Base Assembly Cover

3. Remove the two M3 x 3-mm screws that secure the carrier to the computer.

4. Pull up on the pull tab to remove the carrier.

1 carrier 2 M3 x 3-mm screws (2)

3 pull tab

5. Remove the two M3 x 3-mm screws that secure the carrier to the HDD2.

6. Remove the carrier from the HDD2. If your computer does not have an HDD2, remove the hard drive place-holder from the carrier.

file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM]

Hard Drive: Dell Precision M6400 Service Manual

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, 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.

NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive.

NOTICE: Use firm and even pressure to slide the hard drive into place. Excessive force may result in

damage to the connector.

1. Connect the interposer you removed in step 7

2. Snap the carrier onto the HDD2 ensuring the two fit securely together.

3. Replace the two M3 x 3-mm screws that secure the HDD2 to the carrier.

4. Slide the posts on the carrier into the slots on the base assembly, then lower the HDD2 into place.

5. Replace the two M3 x 3-mm screws that secure the HDD2 to the computer.

6. Replace the base assembly cover (see Replacing the Base Assembly Cover

7. Follow the procedures in 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

of the removal procedure to the new HDD2.

file:///T|/htdocs/systems/wsm6400/en/sm/hdd.htm[11/16/2012 10:26:26 AM]

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. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.

1. Follow the procedures in Before Working on Your Computer

2. Turn your computer upside down.

3. Remove the M2.5 x 8-mm screw in the battery bay.

4. Use the notch by the screw to push the optical drive out enough to pull it out from the bay.

1 M2.5 x 8-mm screw 2 notch by screw 3 plastic scribe 4 media bay 5 optical drive

Replacing the Optical Drive

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.

NOTE: The security screw on the optical drive is optional and may not be installed on your computer.

file:///T|/htdocs/systems/wsm6400/en/sm/optical.htm[11/16/2012 10:26:28 AM]

+ 56 hidden pages

Dell Precision M6400 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual