Ok so my question is this. It is very easy for me to use AMD overdrive to get my 965 to 4ghz no problem just by simply upping the multiplier. However performance does not seem to increase much. Alot of guides that I have read here advise that to oc these things well all you should do is up the multi. However I have read in several other guides that you will get much better performance by finding the balance between upping the multiplier, HT. REF clock, and the PCIe speed. Other guides on here say not to even mess with these. I believe by increasing these other factors it would seem to balance out the cpu clock per clock because it would increase performnce in other aspects as well. I am quite confused should I mess with the ref clock and PCIe speeds? Wouldnt that give me more performance than simply upping the multi? I would appreciate any comments about experience on this matter a I am trying to achieve the best possible OC. Thanx folks