HP Pro 3330 HP Pro 3330 Microtower PC, HP Pro 3330 Small Form Factor PC, and H - Page 91

CAUTION, When reinstalling an existing heat sink

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5. Disconnect the fan sink cable from the white system board connector labeled CPU FAN. Figure 7-39 Removing the fan sink (fan sink appearance may vary) 6. Lift the fan sink from the processor and set it on its side to keep from contaminating the work area with thermal grease. CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heat sink to 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. When reinstalling an existing heat 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. New heat sinks come from the factory with fresh thermal grease already applied. Fan Sink Assembly 81

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5.
Disconnect the fan sink cable from the white system board connector labeled CPU FAN.
Figure 7-39
Removing the fan sink (fan sink appearance may vary)
6.
Lift the fan sink from the processor and set it on its side to keep from contaminating the work
area with thermal grease.
CAUTION:
Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X)
to evenly seat the heat sink to 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.
When reinstalling an existing heat 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. New heat sinks come
from the factory with fresh thermal grease already applied.
Fan Sink Assembly
81