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Back to Contents Page Before Working on Your Computer Dell Precision™ Service Manual Recommended Tools What You Need to Know for Your Safety Removing the Battery Replacing the Battery 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: l You have performed the steps in Before Working on Your Computer. l You have read the safety informa
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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). 2. Grip the battery and slide it out of the battery bay. 1 battery release latches (2) 2 battery 3. Turn the computer top-side up, open the display, and press the power
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Back to Contents Page Flashing the BIOS Dell Precision™ Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BIOS-update program CD is provided with a new system board, flash the BIOS from the CD. If you do not have a BIOS-update program CD, flash the BIOS from the hard drive. Flashing the BIOS From a CD NOTICE: Plug the DC adapter into a known good power source to prevent a loss of power. Failure to do so may cause system damage. 1. Ens
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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. 1. Follow the procedures in Before Working on Your Computer. 2. Remove the hard drive (see Removing the Hard Drive). 3. Remove the modular drive (see Removing the
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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). 7. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly). 8. Replace the modular drive (see Replacing the Modular Drive). 9. Replace the hard drive (see Replacin
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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. NOTICE: Disconnecting the coin-cell battery from the system board with no other power source causes the BIOS to reset to the default configuration and sets the realtime clock to t
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Back to Contents Page Processor Module Dell Precision™ 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. 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 Compu
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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
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Back to Contents Page Heat Sinks Dell Precision™ Service Manual Removing the Processor Heat Sink Removing the Discrete Graphics Heat Sink Replacing the Discrete Graphics Heat Sink Replacing 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
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1 vent-end of assembly 2 discrete graphics heat sink 3 captive screws (3) 4 screw-end of assembly . Replacing the Discrete Graphics 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. Before installing the discrete graphics heat sink, the processor heat sink must be removed.
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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. NOTICE: When removing the system board to access the I/O board, it is not necessary to remove the processor from the system board. 2. Remove the system bo
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Back to Contents Page
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Dell Precision™ Mobile Workstation M4400 Service Manual
Troubleshooting LED Cover
Before Working on Your Computer Keyboard
Right Speaker Grill and
Base Assembly
Fingerprint Reader
Hinge Covers Flash Cache Module
Hard Drive Palm Rest Assembly
WLAN Card SD Card Reader
WWAN Card Express Card Cage
WPAN/UWB Card System Board Assembly
Fan Modem
Heat Sinks I/O Board
Processor Module DC Power Cable
Memory Display Assembly
Coin-Cell Battery Flashing the BIOS
Modular Drive
Model PP30L
Notes, Not
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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. Removing the Bottom of the Base Assembly 1. Follow the procedures in Before Working on Your Computer. 2. Close the display
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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). 11. Remove the card in the WPAN/UWB/FCM slot, if present (see Removing a WPAN/UWB Card). 12. Remove the memory modules (see Removing a Memory Module). 13. Remove the
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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. 2. Install the modem cable. Place the external modem cable connector into its mounting slot, then route the cable through its cabling channel. 3. Replace the I/O board (see Replacing
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Back to Contents Page Display Assembly Dell Precision™ Service Manual Replacing the Camera and Removing the Display Assembly Microphone Assembly Replacing the Display Assembly Removing the Latch Hook Removing the Display Bezel Replacing the Latch Hook Replacing the Display Bezel Removing the Display Bracket Removing the Display Panel Replacing the Display Bracket Replacing the Display Panel Remove the Display Cover Display Inverter Replace the Display Cover
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8. Turn the computer topside up. 9. Open the display to 90 degrees and lift the display assembly off the base assembly. 1 display assembly 2 base assembly Replacing 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. 1. Align the display hinges with
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NOTICE: To release the snaps on the left and right sides of the bezel, push the bezel sides away or out from the LCD, while lifting up. To release the snaps along the top and bottom of the bezel, pull the bezel top or bottom toward or in to the LCD, while lifting up. 3. Follow the NOTICEs above to carefully release all bezel snaps. Special attention is required for the corners, especially for the bezels used with LED LCD panels. 4. Once all snaps are released, lift the bezel from t
