Hi Jokester I need a bit of help in finding Max/high FSB on my mobo which is Gigabyte GA EP45 UD3LR so it is a P45 chipset mobo. Basically I can overclock my Q6600 to 3.4Ghz (378x9). Bios Vcore = 1.4125v Idle Voltage = 1.360v Load voltage = 1.312v However when I try to run my Q6600 @3.6Ghz (400x9), my pc crashes during prime testing. Ofcourse my Ram is always near stock speed of 800MHZ DDR2 or underclocked. Bios Vcore = 1.5v So should I use 400x8 or 400x6 (Q6600@2.4Ghz stock speed) to see if my mobo can handle 400FSB. I did notice that northbridge heatsink gets very hot when running at 3.6GHz.