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CAUTION: When removing the processor module, pull the module straight up. Be careful not to bend the pins on the processor module. 1. Follow the procedures in Before You Begin. 2. Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor module. When the processor module is properly seated, all four corners are aligned at the same height. If one or more corners of the module are higher than the others, the module is not seated properly. 3. Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board. 4. Replace the central processor heat sink (see Replacing the Central Processor Heat Sink). Back to Contents Page NOTE: If a new processor is installed, you will receive a new thermal-cooling assembly, which will include an affixed thermal pad, or you will receive a new thermal pad along with documentation to illustrate proper installation. NOTE: The pin-1 corner of the processor module has a triangle that aligns with the triangle on the pin-1 corner of the ZIF socket. CAUTION: To avoid damage to the processor, hold the screwdriver perpendicular to the processor when turning the cam screw. Back to Contents Page Processor Heat Sink Dell Studio™ 1745/1747 Service Manual Central Processor Heat Sink Graphic Processor Heat Sink Central Processor Heat Sink Removing the Central Processor Heat Sink 1. Follow the instructions in Before You Begin. 2. Remove the battery (see Removing the Battery). 3. Follow the instructions from step 2 to step 20 in Removing the System Board. 4. In sequential order (indicated on the processor heat sink), loosen the four captive screws that secure the processor heat sink to the system board. 5. Lift the central processor heat sink off the system board. Replacing the Central Processor Heat Sink 1. Follow the procedures in Before You Begin. 2. Place the central processor heat sink on the system board. 3. Align the four captive screws on the central processor heat sink with the screw holes on the system board and tighten the screws in sequential order (indicated on the processor heat sink). WARNING: 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 WARNING: If you remove the processor heat sink from the computer when the heat sink is hot, do not touch the metal housing of the processor heat sink. CAUTION: 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. 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 your computer). CAUTION: To help prevent damage to the system board, remove the main battery (see Removing the Battery) before working inside the computer. 1 captive screws (4) 2 central processor heat sink NOTE: This procedure assumes that you have already removed the central processor heat sink and are ready to replace it. 4. Follow the instructions from step 5 to step 21 in Replacing the System Board. 5. Replace the battery (see Replacing the Battery). Graphic Processor Heat Sink Removing the Graphic Processor Heat Sink 1. Follow the instructions in Before You Begin. 2. Remove the battery (see Removing the Battery). 3. Follow the instructions from step 2 to step 20 in Removing the System Board. 4. In sequential order (indicated on the processor heat sink), loosen the four captive screws that secure the processor heat sink to the system board. 5. Lift the graphic processor heat sink off the system board. Replacing the Graphic Processor Heat Sink 1. Follow the procedures in Before You Begin. 2. Place the graphic processor heat sink on the system board. 3. Align the four captive screws on the graphic processor heat sink with the screw holes on the system board and tighten the screws in sequential order (indicated on the processor heat sink). 4. Follow the instructions from step 5 to step 21 in Replacing the System Board. 5. Replace the battery (see Replacing the Battery). Back to Contents Page 1 screws (4) 2 graphic processor heat sink NOTE: This procedure assumes that you have already removed the graphic processor heat sink and are ready to replace it. Back to Contents Page Display Dell Studio™ 1745/1747 Service Manual Display Assembly Display Bezel Display Panel Display Panel Cable Display Assembly Removing the Display Assembly 1. Follow the procedures in Before You Begin. 2. Remove the battery (see Removing the Battery). 3. Remove the base cover (see Removing the Base Cover). 4. Disconnect the antenna cables from the Mini-Card(s) (see Removing the Mini-Card). 5. Disconnect the subwoofer assembly cable from the subwoofer assembly cable connector on the system board (see Removing the P...