bws48... HP Pavilion desk top tower (box store special)about 3 years old... I unsuccessfully attempted several times to restart.... as soon as the AC dropped the temp below 85F it restarted without a problem... it has never been cleaned, but there is air flow out of the fan

I used Apples at school (IIe to Graphite Macs), and none were fan cooled (IIRC) but never temp that high either...