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Old 2010-06-11, 20:12   #3
sdbardwick
 
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Aug 2002
North San Diego County

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IME, the most common causes of sudden Prime95 failure after an extended period of faultless operation are:
0. Unstable overclock of CPU or RAM.
1. Heat due to clogged/stopped CPU HSF.
2. Memory failure. Use Memtest86+ to verify.
3. Video driver bugs (primarily NVDIA); this has become much less likely than in years past, and is less likely than the first three.
4. Mainboard failure.
5. CPU failure.

Last fiddled with by sdbardwick on 2010-06-11 at 20:14 Reason: added 0 and 5
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