Fan Sink - HP ProDesk 400 G3 Small Form Factor Maintenance And Service Manual

Fan sink

The fan sink is secured atop the processor with four captive Torx screws. The fan sink includes a heat sink and
a fan.
1. Prepare the computer for disassembly
2. Remove the access panel
3. Loosen the four captive Torx T15 screws (1) that secure the fan sink to the system board tray, and then
disconnect the fan cable from the system board connector labeled CPUFAN (2).
CAUTION:
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.
4. 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.
CAUTION:
seat the fan sink on the processor to avoid damage that could require replacing the system board.
Make sure to replace the fan duct. Failure to install the fan duct may cause the computer to overheat.
38 Chapter 4 Removal and replacement procedures: Small Form Factor
(Access panel on page
Remove fan sink retaining screws in diagonally opposite pairs (as in an X) to even the
Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
(Preparation for disassembly on page
18).
17).