[rescue] Replacing CPU cooler fan on ultra 1
jonathanjg at wo.co.za
Fri Jul 15 05:52:46 CDT 2005
Can anyone tell me what the trick is to replacing the cpu cooler fan on
an Ultra1? There seem to be no instructions for doing so in the ultra 1
service manual that I have, is it perhaps in another manual?
There are five screws holding down the plastic plate that holds down the
fan. Four of these screws, directly surrounding the fan can be removed
from above. The fifth screw, on the far side of the plastic plate seems
to be inserted from UNDERNEATH the motherboard. Also, underneath the
plastic plate appears to be a layer of a yellow foam or it could be
double-sided tape that may also be sticking this plastic plate to the
heatsink fins. Must the entire motherboard be removed and this double
sided tape as well just to replace the cooler fan?
The board is the version with the 3 SBus connectors and the CPU in
question identifies itself as an UltraSPARC 143MHz. The machine works
and turns on fine, but the non-working CPU fan gets quite hot.
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