User guide

4-44 Sun Fire X2100 Server User Guide • April 2007
7. Gently distribute the thermal grease and remove any excess so that only an
extremely thin, uniform layer remains. If any voids or crevices appear that could
lead to air pockets, reapply the grease until you achieve a thin but compact
consistency.
8. Use an alcohol pad to remove all thermal grease from the bottom of the heatsink.
9. Inspect the heatsink for dust and lint. Clean if necessary.
10. Ensure that the foam strip under the heatsink area is intact and has not been
removed, loosened, or damaged. This foam strip is critical to proper air flow.
11. Carefully position the heatsink on the CPU, aligning it with the mounting posts
to reduce movement after it makes initial contact with the layer of thermal grease.
Caution – If the heatsink is moved too much during its installation, the layer of
thermal grease may become uneven, leading to component damage.
12. If necessary, install the spring onto each of the two heatsink screws, followed by
the washer, before fastening the screws to the heatsink.
See
FIGURE 4-33 for the correct order of hardware installation.
13. Fasten the two screws attaching the heatsink to the motherboard. See
FIGURE 4-35.
FIGURE 4-35 Installing the Heatsink