Compaq 164197-003 Deskpro EN Series of Personal Computers - Slim Desktop Model - Page 65
Processor Assembly, If the heatsink has a thermal interface attached to its bottom, peel off
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4.20 Processor Assembly 1. Prepare the computer for disassembly (Section 4.2). CAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage. 2. Remove the access panel (Section 4.6). CAUTION: To reduce the risk of personal injury from hot surfaces, allow the internal system components to cool before touching. 3. Remove the heatsink retaining clip 1 by pressing down on the clip's extended tab until it releases from the safety catch. 4. Twist the heatsink 2 slightly to break its adhesion to the processor and remove the heatsink from the processor. 5. Release the processor 3 from the socket by pulling the handle on the ZIF socket 4 out and upward. 6. Lift the processor out of the socket. To install a processor, reverse the removal procedures. ✎ If the heatsink has a thermal interface attached to its bottom, peel off the protective paper before installing the heatsink. ✎ All units with 800 MHz and faster processors require an active fansink. When installing the fan, make sure it is positioned so it blows down on the processor. ✎ All units with 933 MHz and faster processors require the chassis fan assembly (Section 4.23). When properly installed, this fan blows air away from the computer. CAUTION: Carefully remove the interface and all residue from the heatsink surface. Thermal interface heat transmission is reduced if residue remains on the heatsink or the heatsink surface is scratched. 4-32 Removal & Replacement Procedures