Problem: 2.8GHz shows HT enabled in the BIOS and can run 2 separate threads just as you would on a multi-processor pc. The 2.4GHz shows HT enabled in the BIOS but I am unable to run separate threads as I do on the 2.8GHz. When I do the applications compete for cpu time. The MB have the identical BIOS versions installed. The MB, processors and memory all support hyper-threading technology. Am I missing something?