Maintenance and Service Guide HP ProDesk 400 G1 Microtower HP ProDesk 480 G1 Microtower HP ProDesk 490 G1 Microtower HP ProDesk 400 G1 Small Form Factor

4. Lift the fan sink from atop the processor.
CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to
evenly seat the heat sink 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.
Fan sink
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