unknownZA have you tried dropping the multiplier, if you got to 8 and still get stuck at the same fsb then its the motherboard not the processor and you could try a much higher fsb at 8 and see if there is hole around 380 (i know there was on earlier bios's on teh pw5dh with dual cores, havent tried with quad and will likely be getting a different board for my g0 q6600 which is due in around the 8th).