Well, I have since turned it down but haven't been running long enough to know if it is going to happen again. Last time it happened I was running at 207MHz FSB and the multiplier is set to 11 which is factory. I had the Vcore set to 1.55. It seems like it is my memory causing the problem but I am not positive. I am running the DIMMS at 1.75v.

System:
Athlon 64 3200 Newcastle
MSI K8N Neo Platinum nForce 3 250
1 Gig. PC3200 DDR CL2
Radeon 9800 Pro