I didn't think to change any BIOS settings because this was a brand new board right out of the box. I was trying to run the CPU at nominal settings, in fact, I tried three different CPU's, two coppermines and a tualeron, and nothing would POST. When I got the second board, absolutely no problems the first time. Man, I really like the features that Abit puts into their boards, but their QC has taken a dive. I'm waiting for the new DFI boards. A lot of Abit people have jumped ship to DFI and they are supposed to be designing new boards for the enthusiast.