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Dell Precision™ Mobile Workstation M4400 Service Manual 
Before Working on Your Computer
WPAN/UWB Card
Fan
Heat Sinks
Memory
Coin-Cell Battery
 
Model PP30L
 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
Information in this document is subject to change without notice.
© 2008 Dell Inc. All rights reserved.
Reproduction 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.; Microsoft, Windows, Windows Vista, and the Windows 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.
August 2008     Rev. A00
Keyboard
Right Speaker Grill and
Fingerprint Reader
SD Card Reader
Modem
I/O Board
 
®
®
Windows
operating systems are not applicable.

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   Summary of Contents for Dell Precision M4400

  • Page 1

    Reproduction 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.; Microsoft, Windows, Windows Vista, and the Windows Start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.

  • Page 2: Base Assembly

    Back to Contents Page   Base Assembly Dell Precision™ Service Manual    Removing the Bottom of the Base Assembly   Replacing the Bottom of the Base Assembly   Removing the Base Assembly   Replacing the Base Assembly   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 3

      7. Remove the display assembly (see Removing the Display Assembly).   8. Remove the keyboard (see Removing the Keyboard).   9. Remove the card in the WWAN/FCM slot, if present (see Removing a WWAN Card).   10. Remove the card in the WLAN/WiMax slot, if present (see Removing a WLAN Card).

  • Page 4

     Replacing the Base Assembly The base assembly has no electronic components installed. It does include the battery latches.   1. Install the DC power cable into the base assembly. Place the external power cable connector into its mounting slot, then Route the cable through its cabling channel.

  • Page 5: Recommended Tools

    Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. 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.

  • Page 6: Removing The Battery, Replacing The Battery

    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.   6. Turn the computer over.  Removing the Battery   1. Slide the battery release latches to the open position. (The latches lock into place).

  • Page 7: Flashing The Bios, Flashing The Bios From A Cd

    1. Ensure that the DC 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 8: Express Card Cage

    Back to Contents Page   Express Card Cage Dell Precision™ Service Manual    Removing the Express Card Cage   Replacing the Express Card Cage  Removing the Express Card Cage   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 9

      3. Reconnect the Express card cable to the system board.   4. Replace the palm rest assembly (Replacing the Palm Rest Assembly).   5. Replace the keyboard (see Replacing the Keyboard).   6. Replace the display assembly (see Replacing the Display Assembly).

  • Page 10: Removing The Coin-cell Battery

    Back to Contents Page   Coin-Cell Battery Dell Precision™ Service Manual    Removing the Coin-Cell Battery   Replacing the Coin-Cell Battery  Removing the Coin-Cell Battery   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 12: Processor Module, Removing The Processor 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.   1. Follow the instructions in Before Working on Your Computer.

  • Page 13: Replacing The Processor 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. NOTICE: Do not touch the processor die. Press and hold the processor down on the substrate on which the die is mounted while turning the cam screw to prevent intermittent contact between the cam screw and processor.

  • Page 14: Removing The Processor Heat Sink

      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 Dell Precision™ M4400 contains two heat sinks. They are referred to as the processor heat sink and the discrete graphics heat sink.   Removing the Processor Heat Sink To remove the processor heat sink, complete the following steps:  ...

  • Page 15: Replacing The Processor Heat Sink

    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. Before installing the discrete graphics heat sink, the processor heat sink must be removed. See Removing the Processor Heat Sink.

  • Page 16

    Back to Contents Page   I/O Board Dell Precision™ Service Manual    Removing the I/O Board   Replacing the I/O Board  Removing the I/O Board   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Follow the procedures in Before Working on Your Computer.

  • Page 17

    Back to Contents Page  ...

  • Page 18: Display Assembly, 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. NOTICE: Position all display assembly cables toward the back, away from the base assembly before installing the display assembly.

  • Page 19: Replacing The Display Assembly, Removing The Display Bezel

    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. Align the display hinges with the holes in the base of the computer, and lower the display into place.

  • Page 20: Replacing The Display Bezel, Removing The Display Panel

    Replacing the Display Assembly).  Removing the Display Panel The Dell Precision M4400 laptop includes either a CCFL display panel or an LED display panel. Use the procedure applicable to the configuration of the laptop you are disassembling.   Removing a CCFL Display Panel  ...

  • Page 21

      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 instructions in Before Working on Your Computer.

  • Page 22: Replacing The Display Panel

    7. Remove the two M2 x 3-mm screws from both the right and left display panel brackets, then remove the brackets.  Replacing the Display Panel The Dell Precision M4400 laptop includes either a CCFL display panel or an LED display panel. Use the procedure applicable to the configuration of the laptop you are assembling.

  • Page 23: Display Inverter

    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 display panel brackets are labeled L (left) and R (right).

  • Page 24: Replacing The Camera And Microphone 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.   1. Connect the two display inverter connectors to the display inverter.

  • Page 25: Removing The Display Bracket

      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 instructions in Before Working on Your Computer.

  • Page 26

    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: Position all display assembly cables toward the back, away from the base assembly before installing the display assembly.

  • Page 27

    7. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).   8. Follow the procedure After Working on Your Computer. Back to Contents Page  ...

  • Page 28: Removing The Fan, 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.   1. Follow the instructions in Before Working on Your Computer.

  • Page 29

     ...

  • Page 30: Flash Cache Module

    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 Flash Cache Module (FCM) is an internal memory module that helps improve the performance of your computer. You can install the module in either the WWAN or WPAN Mini-Card slot.

  • Page 31

     Replacing an FCM NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the module and on the system board, and realign the module. NOTICE: To avoid damage to the FCM, ensure the cables are not under the module when you install it. NOTICE: The Mini-Card slot has WPAN/UWB/FCM silk-screened inside the slot.

  • Page 32: Hard Drive, Removing The Hard Drive

    Dell Precision™ Service Manual    Removing the Hard Drive   Replacing the Hard Drive NOTE: Dell does not guarantee compatibility or provide support for hard drives obtained from sources other than Dell.  Removing the Hard 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.

  • Page 33: Replacing The Hard Drive

    hard drive face plate M2 x 3-mm screw hard drive      Replacing the Hard Drive   1. If replacing the hard drive with a new one, remove the new drive from its packaging. Save the original packaging for storing or shipping the hard drive.  ...

  • Page 34: Hinge Covers, Removing The Hinge Covers, Replacing The Hinge Covers

    Back to Contents Page   Hinge Covers Dell Precision™ Service Manual    Removing the Hinge Covers   Replacing the Hinge Covers  Removing the Hinge Covers   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 35: Removing The Keyboard, Replacing The Keyboard

    Back to Contents Page   Keyboard Dell Precision™ Service Manual    Removing the Keyboard   Replacing the Keyboard  Removing the Keyboard   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.   1. Follow the procedures in Before Working on Your Computer.

  • Page 36

    1 keyboard connector 2 tabs (5) 3 M2 x 3-mm screw (2)       4. Replace the LED cover (see Replacing the LED Cover).   5. Close the display and turn the computer over.   6. Follow the procedure After Working on Your Computer.

  • Page 37: Led Cover, Removing The Led Cover

    Back to Contents Page   LED Cover Dell Precision™ Service Manual    Removing the LED Cover   Replacing the LED Cover  Removing the LED Cover   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 38: Removing A Memory Module

    If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module.

  • Page 39: Replacing A Memory Module

      2. Grasp the module at the side edges and pull it straight away from the connector. Place the module into anti-static packaging such as an anti- static bag.   DIMM A NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module retaining clips.  ...

  • Page 40

    5. If a memory module is installed into the DIMM B socket, replace it using procedures in DIMM   DIMM B   1. Ground yourself by touching a bare-metal part in the computer chassis.   2. Remove the memory module from its anti-static packaging and, grasping the module at the side edges, align the slot in the module edge connector with the key in the socket connector.

  • Page 41: Removing The Modem, Replacing The Modem

      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.

  • Page 42

    6. Follow the procedure After Working on Your Computer. Back to Contents Page  ...

  • Page 43: Modular Drive, Replacing The Modular Drive

    Back to Contents Page   Modular Drive Dell Precision™ Service Manual    Removing the Modular Drive   Replacing the Modular Drive The modular drive bay supports either a second hard drive, an optical drive, or an air bay for travel.  Removing the Modular Drive  ...

  • Page 44: Palm Rest Assembly, Removing The Palm Rest 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.   1. Follow the instructions in Before Working on Your Computer.

  • Page 45: Replacing The Palm Rest 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.   1. Attach the left and right speakers to the palm rest using two screws for each. Route the speaker cable through the palm rest assembly.

  • Page 46

      3. Lower the palm rest onto the computer ensuring that the cable to the I/O board is not pinched and the RJ-11 connector is properly seated.   4. Angle and connect the right side of the palm rest, then lower and snap the left side into place.  ...

  • Page 47: Dc Power Cable, Removing The Dc Power Cable

      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 instructions in Before Working on Your Computer.

  • Page 48: Replacing The Dc Power Cable

    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. Position the DC power connector in the base assembly, aligning the guides on the connector sides with the base.

  • Page 49

    Back to Contents Page   SD Card Reader Dell Precision™ Service Manual   Removing the SD Card Reader   Replacing the SD Card Reader  Removing the SD Card Reader   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 50

      3. Connect the SD card reader cable to the system board.   4. Replace the palm rest assembly (Replacing the Palm Rest Assembly).   5. Replace the keyboard (see Replacing the Keyboard).   6. Replace the display assembly (see Replacing the Display Assembly).

  • Page 51

    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: If you do not have a fingerprint reader, ignore steps to remove or install one.

  • Page 52

    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: If you are installing a new fingerprint reader/speaker grill assembly, remove the backing paper from the bottom of the cable.

  • Page 53: System Board Assembly, Removing The System Board 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.   1. Follow the instructions in Before Working on Your Computer.

  • Page 54: Replacing The System Board 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. NOTICE: Ensure that any loose cables do not get caught beneath the system board.

  • Page 55

    34. 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 on your computer on at support.dell.com. Back to Contents Page...

  • Page 56

    Reproduction 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.; Microsoft, Windows, Windows Vista, and the Windows Start button logo are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.

  • Page 57: Troubleshooting, Troubleshooting Tools, Diagnostic Lights, Diagnostic Light Codes During Post, Hardware Troubleshooter

    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 on your computer or 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 58: Dell Diagnostics, When To Use The Dell Diagnostics

    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...

  • Page 59: Starting The Dell Diagnostics From The Drivers And Utilities Media, Dell Diagnostics Main Menu

    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).

  • Page 60: Error Messages

    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 61: Solving Problems, Battery Problems, Drive Problems

     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.

  • Page 62: Optical Drive Problems, Hard Drive Problems

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

  • Page 63: Ieee 1394 Device Problems, Lockups And Software Problems, The Computer Does Not Start Up

    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 64: A Program Crashes Repeatedly, A Program Is Designed For An Earlier Windows Operating System

    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 65: Power Problems, Sound And Speaker Problems, No Sound From Speakers, No Sound From Headphones

     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 66: Video And Display Problems

    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. The service is free and can be customized for content, format, and how frequently you receive notifications.

  • Page 67: Wlan Card, Removing A Wlan Card, Replacing A Wlan Card

    Back to Contents Page   WLAN Card Dell Precision™ Service Manual    Removing a WLAN Card   Replacing a WLAN Card   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. Your computer supports a Wireless Local Area Network (WLAN) card. If you ordered a WLAN card with your computer, the card is already installed.

  • Page 68

    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. NOTICE: To avoid damage to the WLAN card, ensure the cables are not under the card when you place the card. NOTE: The card slot will be marked by a WLAN label.

  • Page 69

    Back to Contents Page   WPAN/UWB Card Dell Precision™ Service Manual   Removing a WPAN/UWB Card   Replacing a WPAN/UWB Card   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. Your computer supports a Wireless Personal Area Network (WPAN/UWB) card. If you ordered a WPAN/UWB card with your computer, the card is already installed.

  • Page 70

     Replacing a WPAN/UWB Card NOTICE: To avoid damage to the WPAN/UWB card, ensure the cables are not under the card when you replace the card. NOTICE: The Mini-Card slot has a WPAN/UWB/FCM label inside the slot. Do not install a WPAN (WPAN/UWB) card in any other location.  ...

  • Page 71: Wwan Card, Replacing A Wwan Card

    Back to Contents Page   WWAN Card Dell Precision™ Service Manual   Removing a WWAN Card   Replacing a WWAN Card   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. Your computer supports a Wireless Wide Area Network (WWAN) card. If you ordered a WWAN card with your computer, the card is already installed.

  • Page 72

    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. NOTICE: To avoid damage to the WWAN card, ensure the cables are not under the card when you click the card into place. NOTICE: Install the WWAN card into the compartment shown in the above photograph.

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  • eloi Sep 18, 2017 12:28:
    Im an owner of Dell precision M4400 and i want to have a manuel of this good but i cant to download or see it in website. Would you send me, please this manuals?
    Thanks a lot for youre regards!!!​
    Eloi
    eloi​.lokanga@g​mail.com
    T​ananarivo
    ​Madagascar