I just put together an Athlon 64 2800+ CPU and a Gigabyte GA-K8NS MB. Runs great however the CPU temperature is 69-70 C.

Motherboard Monitor, Aida32 and Everest all report that temp.

I pulled the heat sink, removed the factory pad and applied Arctic Silver. Same problem. (the factory pad showed good contact)

When I reboot to BIOS it reports the CPU temp at about 28-29C. So I set the BIOS to warn me if the temp got to 60C. Rebooted to windows and it didn't take long to get the BIOS warning. So I reset BIOS to warn at 70C.

I haven't gotten the BIOS temp warning since, however the CPU is still running at 69-70C according to MBM. OEM fan is running at about 3100 RPM.

Any ideas? TIA