My pc set up is a Quad Core 6600 running on a Gigabyte GA 965P with 2 gigs ram and stock cooling. It is 18 months old. So far 2 cpus have died. The original was a core duo and when that bit the dust I upgraded to a quad core. The second chip was only 4 months old when it died. The guys at the store say that Intel chips never die. There were no surges, no over-clocking nothing. Any ideas why something like this might happen? Could it be my power supply? (850w). I'm getting tired of having to replace these chips - should I be using an aftermarket cooling fan or something? The replacement cpu I am temporarily using (an old pentium 4) is currently running at 57C - 60C or 134F - 140F. . . is that too hot?