Heatsink Assembly - HP Dx5150 - Compaq Business Desktop Reference Manual

Removal and Replacement Procedures— Small Form Factor (SFF) Chassis

7.14 Heatsink Assembly

1. Prepare the computer for disassembly
2. Remove the computer access panel
3. Remove the front bezel
4. Rotate the drive cage to its full open position.
5. Disconnect the heatsink fan control cable from the system board.
6. Loosen the two captive screws 1 that secure the heatsink to the system board.
✎
You will need a straight shanked, flat blade, or Torx T15 screwdriver to loosen the heatsink
retaining screws.
7. Twist the heatsink slightly to break the bond between it and the processor then, lift the
heatsink from the processor 2
8. Set the heatsink on its side to keep the thermal grease from getting on the work surface.
✎
If reinstalling this heatsink, make sure that you clean its mounting surface and the mounting
surface of the processor with an alcohol pad then, apply a fresh coating of thermal grease to the
top of the processor.
CAUTION: Failure to apply a fresh coating of thermal grease could cause the computer to overheat.
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7–28
(Section 7.1, "Preparation for
(Section 7.3, "Computer Access
(Section 7.4, "Front Bezel,").
361685-001
Disassembly").
Panel").
Service Reference Guide, dx5150