I am not too familiar with the register settings for P4 mobos, but many AMD motherboards do not implement the CPU_HLT command that causes the processor to truly idle. This was done for supposedly compatibility and also to avoid huge swings in current demands when the CPU goes under load. You might want to look around for a WPCredit file that is for the i850 (that is what the TH7-II is right?) and see if maybe the CPU is idling high in temp for that reason. 46C under load seems high to me for a P4 anyway; aren't those pretty low heat CPUs?
|