hello all. just a question for my own curiosity.
i picked up several identical systems for parts and during the course of testing the components, i found a bad cpu. no matter which motherboard i put it into, it would max out the fan speeds, and still oveheat to the point of major throttling. i tested several other identical cpu's under the same conditions and they never even got close to the max. so what would cause a cpu to constantly overheat like that?
the cpus are all intel Pentium D 945 processors 3.4ghz dual core (SL9QQ)
the thermal max is 63.4C
according to speedfan:
5 of the cpus idle at around 43C and max out at 59C when using prime 95
1 of the cpus idle at around 47C and always hits 63 and throttles when using prime 95
is it possible that the crappy thermal material betweeen the core and the heat spreader is no good?
Edited by he's dead jim, 07 June 2014 - 08:31 AM.