Dell Precision™ Mobile Workstation M4400 Service Manual Troubleshooting LED Cover Before Working on Your Computer Keyboard Base Assembly Right Speaker Grill and 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 Note
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 and turn the computer over. 3. Loosen the M2.
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 fan (see Removing the Fan). 14.
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 the I/O Board). 4.
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 information that shipped with 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. 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 button to ground the system board.
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.
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 Modular Drive). 4.
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 Replacing the Hard Drive). 10.
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 the build date.
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 Computer. 2.
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.
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.
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.
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.
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Back to Contents Page Display Assembly Dell Precision™ Service Manual Removing the Display Assembly Replacing the Camera and 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 Removing the Camera and Microphone
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.
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 the display assembly.
1 M2.5 x 5-mm screw (4) 2 display panel 3 display cover 4 inverter backlight cable 6. Lift the display panel out of the display cover and lay the display panel flat on your workspace. Use extreme care when handling the display near the hinges and cables on the display cover to prevent damage to the display. 7. Disconnect the display cable by first squeezing the release tabs together, then separating the cable from of the connector. 1 back of display panel 2 display panel cable connector 8.
1 M2.5 x 5-mm screw (4) 2 display panel 3 display cover 5. Lift the display panel out of the display cover and lay the display panel flat on your workspace. Use extreme care when handling the display near the hinges and cables on the display cover to prevent damage to the display. 6. Disconnect the display cable using the pull tab. 1 back of display panel 2 display panel cable connector 7. Remove the two M2 x 3-mm screws from both the right and left display panel brackets, then remove the brackets.
5. Route the display cable around the notch on the display cover and set the display panel in place. 6. Replace the four M2.5 x 5-mm screws that secure the display panel to the display cover. 7. Replace the display bezel (see Replacing the Display Bezel). 8. Replace the display assembly (see Replacing the Display Assembly). Replacing an LED Display Panel CAUTION: Before working inside your computer, read the safety information that shipped with your computer.
1 M2 x 3-mm screw (2) 2 display inverter connector 3 display inverter 4 display inverter connector Replacing the 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. 1. Connect the two display inverter connectors to the display inverter. 2.
4. Tighten the M2 x 3-mm screw that secures the camera/microphone assembly to the display cover. 5. Replace the display bezel (see Replacing the Display Bezel). 6. Replace the display assembly (see Replacing the Display Assembly). Removing the Latch Hook 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.
2. Remove the display bracket. 1 display panel 2 M2 x 3-mm screw (2) 3 display panel bracket Replacing the Display Bracket 1. Position the display bracket on the display panel. 2. Replace the two M2 x 3mm screws to secure the display bracket to the panel. Remove the Display Cover 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.
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 Fan Dell Precision™ Service Manual Removing the Fan Replacing the Fan Removing the Fan CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance. 1. Follow the instructions in Before Working on Your Computer. 2. Close the display and turn the computer over. 3.
Back to Contents Page Flash Cache Module Dell Precision™ Service Manual Removing an FCM Replacing an FCM 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 Flash Cache Module (FCM) is an internal memory module that helps improve the performance of your computer.
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. Do not install an FCM in any other Mini-Card slot. 1. Slide the FCM into the connector at a 30-degree angle to the system board. 2.
Back to Contents Page 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.
1 hard drive face plate 3 hard drive 2 M2 x 3-mm screw 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. 2. If the face plate is detached from the hard drive, attach it with a M2 x 3-mm screw. NOTICE: Use firm and even pressure to slide the drive into place. If you use excessive force, you may damage the connector. 3.
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. The hinge covers are not interchangeable; the left one covers the multimode DisplayPort and the right one covers the RJ-45 network connector. 1. Follow the procedures in Before Working on Your Computer. 2.
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. 2. Remove the LED cover (see Removing the LED Cover). 3. Remove the two M2 x 3-mm screws along the top of the keyboard.
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.
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. 1. Follow the procedures in Before Working on Your Computer. 2. Open the display. 3. Using a plastic scribe, lift the right end of the LED cover. Lift the remainder of the cover to remove it from the laptop.
Back to Contents Page Memory Dell Precision™ Service Manual Removing a Memory Module Replacing a Memory Module Verifying System Operation CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Dell™ Product Information Guide. CAUTION: 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.
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. 1. To remove the DIMM A module, spread away the retaining clips from the side edges of the memory module and lift the free edge of the module so that it sits at about a 30-degree angle to the system board. 2.
5. If a memory module is installed into the DIMM B socket, replace it using procedures in DIMM B. 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. 3. Slide the memory module into the DIMM B connector at a 30-degree angle to the system board until it is fully seated. 4.
Back to Contents Page Modem Dell Precision™ Service Manual Removing the Modem Replacing the Modem Removing 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. 2. Close the display and turn the computer over. 3.
6. Follow the procedure After Working on Your Computer.
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 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. NOTE: The modular drive security screw is optional and may not be installed on your computer. 1.
Back to Contents Page Palm Rest Assembly Dell Precision™ Service Manual Removing the Palm Rest Assembly Replacing the Palm Rest Assembly Removing the Palm Rest Assembly CAUTION: Before working inside your computer, read the safety information that shipped with your computer. 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. 2.
1 thermal plate 2 M2.5 x 4-mm screw (4) 12. Disconnect the wireless catcher cable from the system board. 13. Disconnect the speaker cable from the system board. 14. Use the pull tab to disconnect the touch pad cable from the system board. 15. Lift up on the lever to disconnect the contactless smartcard cable from the system board. 16. Lift up on the lever to disconnect the fingerprint reader cable from the system board (optional).
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. 5.
Back to Contents Page DC Power Cable Dell Precision™ Service Manual Removing the DC Power Cable Replacing the 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. 2.
1 DC power connector 2 DC cable 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. 2. Route the DC power cable through the base assembly. 3.
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. 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 Modular Drive). 4.
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). 7. Replace the modular drive (see Replacing the Modular Drive). 8. Replace the hard drive (see Replacing the Hard Drive). 9. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly). 10.
Back to Contents Page Right Speaker Grill and Fingerprint Reader Dell Precision™ Service Manual Removing the Right Speaker Grill and Fingerprint Reader Replacing the Right Speaker Grill and Fingerprint Reader Removing the Right Speaker Grill and Fingerprint Reader 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.
1 fingerprint reader cable connector 2 fingerprint reader cable 3 speaker/fingerprint reader grill 1 screw (3) 2 left speaker 3 underside of palm rest 4 speaker cables 5 right speaker Replacing the Right Speaker Grill and Fingerprint Reader 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.
Back to Contents Page System Board Assembly Dell Precision™ Service Manual Removing the System Board Assembly Replacing the System Board Assembly The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes media that provides a utility for transferring the Service Tag to the replacement system board.
1 M2 x 3-mm screw (2) 2 PC card cage 3 latch tab 4 plastic scribe 25. Remove five M2.5 x 5-mm screws labeled with white arrows from the system board. 26. Pull out on the top, left corner of the base assembly to release the DC, USB, and serial connectors. 27. Lift the top, right edge of the system board to disconnect the it from the I/O board, then carefully lift the system board out of the computer.
7. Replace the two M2 x 3-mm screws securing the PC card cage. 8. Replace the Express card cage (see Replacing the Express Card Cage). 9. Connect the Express card cable to the system board. 10. Replace the SD card reader assembly (see Replacing the SD Card Reader). 11. Connect the SD card cable to the system board. 12. Replace the palm rest assembly (see Replacing the Palm Rest Assembly). 13. Replace the keyboard (see Replacing the Keyboard). 14.
Back to Contents Page Service Manual 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.
Back to Contents Page Troubleshooting Dell Precision™ Service Manual Troubleshooting Tools Solving Problems Dell™ Technical Update Service Troubleshooting Tools Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. Your computer has three keyboard status lights located above the keyboard.
2. Type hardware troubleshooter in the search field and press 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. ® Windows Vista : 1. Click the Windows Vista start button , and click Help and Support. 2. Type hardware troubleshooter in the search field and press to start the search. 3.
Diagnostics Main Menu). 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.
Test System Run system diagnostics Exit Exit the diagnostics Press to select the test you want to run and then press . 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.
Windows Vista: 1. 2. 3. 4. Click Start ® Control Panel® Programs® Programs and Features. Select the program you want to remove. Click Uninstall. 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.
l 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 on your computer or at support.dell.com. Check the cable connections Run the Hardware Troubleshooter — See Hardware Troubleshooter. Run the Dell Diagnostics — See Dell Diagnostics. 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.
4. Follow the instructions on the screen. IEEE 1394 Device Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. NOTE: Your computer supports only IEEE 1394a standard.
1. 2. 3. 4. Press simultaneously to access the Task Manager. Click the Applications tab. Click to select the program that is no longer responding. 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.
l l l l Save and close any open files and exit any open programs you are not using to see if that resolves the problem. See the software documentation for minimum memory requirements. If necessary, install additional memory (see Replacing a Memory Module). Reseat the memory modules (see Memory) to ensure that your computer is successfully communicating with the memory. Run the Dell Diagnostics (see Dell Diagnostics).
that the sound is not muted. Video and Display Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. NOTICE: If your computer came with a PCI graphics card installed, removal of the card is not necessary when installing additional graphics cards; however, the card is required for troubleshooting purposes. If you remove the card, store it in a safe and secure location. For information about your graphics card, go to support.
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. Removing a WLAN Card 1. Follow the procedures in Before Working on Your Computer. 2.
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. Do not install the WLAN card into any other card slot. 1. Slide the WLAN card into the connector at a 30-degree angle to the system board. 2.
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. Removing a WPAN/UWB Card 1. Follow the procedures in Before Working on Your Computer. 2.
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. 1. Slide the WPAN/UWB card into the connector at a 30-degree angle to the system board. 2. Press the card down onto the alignment post and hold in position. 3. Install the M2 x 3-mm screw to secure the WPAN/UWB card. 4.
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. Removing a WWAN Card 1. Follow the procedures in Before Working on Your Computer. 2.
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. Do not install it in any other location. 1. Slide the WWAN card into the connector at a 30-degree angle to the system board. 2.