I have a P2B-F running a CII 533@800 on a MSI converter.
Volts set to 1.65, Bios is 1013.
Board does not read the CPU temp but it does not seem to be too hot, Intel HS/Fan just barly warm. I don't know where to attach the thermistor to get a good reading. Just set this up about 3 hrs ago, Could not get this processor to run stable on my Soyo 6vca but it is purring along just fine on this BX.
good luck....
scienceMan