Is it normal the fsb to fluctuate on the AA8XE? I'm running the latest bios and have tried it with 3 cpu's; 560 3.6es, 571 3.8es, and a 650 3.4es. It doesn't matter what fsb I select, the board will fluctuate up to 4 fsb from what I have it set at. For example, I was running the 3.4 at 275fsb X 15 multi (which it's perfectly stable at on an Asus P5AD2). If I open cpuz and run SuperPi I can watch the fsb run up to 278.8 and now and then my system will crash from the extra fsb. Is this a problem with these boards, or do I need to rma mine? I went to the Abit for the XE chipset but the way it is I could run better oc's with the Asus 925e board.