I am dropping my HT Multi to 2x and trying different combinations of FSB raising and multi dropping, I know my motherboard can do 290HTT and my RAM can 1:1 it at 2.5-3-3-7. It seems that my CPU is just crappy, because I can't get it prime stable 1mhz past stock pretty much. My PCI lock is working also. Im going to try priming for 12 hours on stock tomorrow, and do memtest86 on each stick afterwards. As for the comment about my PSU, I don't think its the problem because I had a 2.8ghz Prescott P4 running at 3.8ghz with a 300w PSU. This isn't a PCI-E rig.