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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 help prevent damage to the system board, remove the main battery (see Before Working Inside Your Computer) before working inside the computer. 1 subwoofer 2 subwoofer cable connector NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. Back to Contents Page System Board Dell™ Studio XPS™ 1640 Service Manual Removing the System Board Replacing the System Board 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 a CD that provides a utility for transferring the Service Tag to the replacement system board. Removing the System Board 1. Follow the instructions in Before You Begin. 2. Remove the base cover (see Removing the Base Cover). 3. Remove the rear caps (see Removing the Rear Caps). 4. Remove the hard drive (see Removing the Hard Drive). 5. Remove the memory module(s) (see Removing the Memory Module(s)). 6. Remove the processor heat sink (see Removing the Processor Heat Sink). 7. Remove the thermal fan (see Removing the Thermal Fan). 8. Remove the coin-cell battery (see Removing the Coin-Cell Battery). 9. Remove the Mini-Cards, if any (see Removing the Mini-Card). 10. Remove the palm rest (see Removing the Palm Rest). 11. Remove the optical drive (see Removing the Optical Drive). 12. Remove the IEEE 1394 module (see Removing the IEEE 1394 Module). 13. Remove the subwoofer (see Removing the Subwoofer). 14. Remove the audio board (see Removing the Audio Board). 15. Disconnect the right power/battery light cable, left power/battery light cable, display cable, and camera cable from the system board connectors (see Removing the Display Assembly). 16. Remove the three screws that secure the system board to the computer base. 17. Disconnect the eSATA connector cable, AC adapter connector cable, and TV tuner card cable from the respective system board connectors. 18. Lift the system board at an angle toward the side of the computer and out of the computer base. 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 at NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer. 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 help prevent damage to the system board, remove the main battery (see Before Working Inside Your Computer) before working inside the computer. NOTICE: Handle components and cards by their edges, and avoid touching pins and contacts. Replacing the System Board 1. Replace the system board in the computer base. 2. Connect the eSATA connector cable, AC adapter connector cable, and TV tuner card cable to the respective system board connectors. 3. Replace the three screws that secure the system board to the computer base. 4. Place the right power/battery light cable, left power/battery light cable, display cable, and camera cable in the routing guides and connect them to the respective system board connectors (see Replacing the Display Assembly). 5. Replace the audio board (see Replacing the Audio Board). 6. Replace the subwoofer (see Replacing the Subwoofer). 7. Replace the IEEE 1394 module (see Replacing the IEEE 1394 Module). 8. Replace the optical drive (see Replacing the Optical Drive). 9. Replace the palm rest (see Replacing the Palm Rest). 10. Replace the Mini-Cards, if any (see Replacing the Mini-Card). 11. Replace the coin-cell battery (see Replacing the Coin-Cell Battery). 12. Replace the thermal fan (see Replacing the Thermal Fan). 13. Peel the backing off the new thermal cooling pads in the kit and adhere the pads to the portions of the processor heat sink that cover the central processor unit and the graphic processor unit. 14. Replace the processor heat sink (see Replacing the Processor Heat Sink). 15. Replace the memory module(s) (see Replacing the Memory Module(s)). 16. Replace the hard drive (see Replacing the Hard Drive). 17. Replace the rear caps (see Replacing the Rear Caps). 18. Replace the base cover (see Replacing the Base Cover). 1 system board 2 screws (3) 3 eSATA connector cable connector 4 AC adapter connector cable connector 5 computer base 6 TV tuner card cable connector NOTE: If the processor, thermal fan, or system board is replaced, use the thermal cooling pads provided in the kit on the processor heat sink to en...