Acer AT350 F2 Series Service Manual page 61

Installing the heatsink and fan assembly
Caution! The heatsink fan assembly has a thermal interface material
(TIM) on the underside. Use caution so that you do not damage the
TIM. If a protective film is installed on the TIM, remove it.
1 Perform the pre-installation instructions described on page 26.
2 Remove the side panel described on page 28.
3 Lay the server on its side (components showing).
4 Do not apply any thermal grease to the heatsink or the processor die;
the required amount has already been applied.
5 Place the heatsink on top of the processor (1) so that the four
mounting holes are aligned with those on the (preinstalled) heatsink
retention mechanism.
6 Use a screwdriver to tighten the four heatsink screws (2). Do not fully
tighten the screws or you may damage the CPU.
7 Connect the heatsink fan cable (3) to its connector on the mainboard.
8 Observe the post-installation instructions described on page 27.
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