Posted 12 July 2006 - 11:26 AM
Can you touch the heatsink on the side? If it's really 88 C that's near the boiling point of water, it should be way too hot to touch. Just try to gingerly get your fingertip as close as you can to the fins. If you can actually set your fingertip on them, even for a split second, then either the temp sensor is wrong or the heatsink is not making good contact with the processor chip.
History might help here. This is an old PC obviously. Did you get it new? If not, how long ago? How long have you been seeing this temperature? Does everything function normally? At 88 C I'd expect to see all kinds of random errors and crashes, followed in short order by total failure.