Fan Sink - HP EliteDesk 705 G2 Small Form Factor Maintenance And Service Manual

Fan sink

CAUTION: The bond between the fan sink and the processor may be very tight.
If the computer will power on, before removing the fan sink, turn on the computer until it warms the fan sink.
Warming the heat sink lessens the bond between the fan 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.
The fan sink is secured atop the processor with four captive Torx screws. The fan sink does not include a fan.
1. Prepare the computer for disassembly
2. Remove the access panel
3. Rotate the drive cage to its upright position.
4. Rotate the small baffle into the upright position
5. Remove the fan baffle
6. Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then loosen the four
captive screws (2) that secure the fan sink to the system board tray.
CAUTION:
the downward forces on the processor. This is especially important as the pins on the socket are very
fragile and any damage to them may require replacing the system board.
7. Lift the fan sink from atop the processor (3) and set it on its side to keep from contaminating the work
area with thermal grease.
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.
(Access panel on page
(Fan baffle on page
Fan sink retaining screws should be removed in diagonally opposite pairs (as in an X) to even
(Preparation for disassembly on page
20).
(Small baffle on page
48).
19).
47).
Fan sink 55