I guess I need to add more. I cant seem to get a clear concept of how to set hpet for a 890fx chipset. I think it is related to IOMMU, the only choice is on or off. I tried it again 2 cores 64 bit is good. I am not sure how an Phenom II AMD CPU works but I think it has a separated functions for 32 & 64. I also believe 64 bits is shut down in the CPU with a 32 bit only OS. Tried varying the CPU multiplier from 10-20 and FSB from 190-225. I tried this because Hpet has some thing to do with chipset function and timing. Still 4 cores is 32 bits only and 2 cores works both ways. Also 32 and 64 bits are daily stable at 3.9Ghz. Before I go to the bother of doing a USB boot for gaming with 32 bits I think I may just get an AMD 970BE and be done with it. Thanks
BTW HD 5770/50 and HD 6770/50 are the same chipsets. They will also Crossfire with A8 APUs with A75 chipsets.