Thanks bagggi. I ran Prime 95 last night and watched the temps. The cpu temp stayed decent but the individual core temps all jumped up to 100 C very quickly. A short time later the computer shut itself off.

When I first started checking on this, I assumed core temps and cpu temps were the same thing. However, I'm now seeing big differences using SpeedFan program in what is reported for the cpu temp versus the core temperatures. I need a better understanding of the relationship or lack thereof between cpu temps and core temps.

Thanks!
KP