Fan Sink - HP 280 G4 MT Maintenance And Service Manual

Fan sink

CAUTION:
If the computer will power on, before removing the fan sink, turn on the computer until it warms the fan sink.
Warming the fan sink lessens the bond between the heat sink and the processor, thereby making separating
them easier.
Make sure not to pull the processor out of the socket when you lift the fan sink, especially if you cannot warm
the fan sink prior to removal. Inadvertently removing the processor can damage the pins.
1. Prepare the computer for disassembly
2. Remove the access panel
3. Remove the front bezel
4. Remove the slim optical drive
5. Remove the drive cage
6. Loosen the four silver captive Torx screws (1) that secure the fan sink to the system board.
CAUTION:
downward forces on the processor. The pins on the socket are very fragile and any damage to them may
require replacing the system board.
7. Disconnect the fan cable from the system board connector labeled CPU_FAN (2).
8. Lift the heat sink from atop the processor.
When reinstalling the fan sink, make sure that its bottom has been cleaned with an alcohol wipe and fresh
thermal grease has been applied to the top of the processor.
40 Chapter 4 Removal and replacement procedures
The bond between the fan sink and the processor may be very tight.
(Access panel on page
(Front bezel on page
(Removing a slim optical drive on page
(Drive cage on page
Remove fan sink retaining screws in diagonally opposite pairs (as in an X) to even the
(Preparation for disassembly on page
17).
18).
19).
16).
29).