did u try to reset the bios using the bios reset jumper? i'm using abit an8 ultra..sometimes faced hanged problem entering bios, what i did just reset the jumper and everything back to default..i just managed to go to 2.6g 290httx9..my ram oer limit already..using only cap ayam ram 512ddr pc2100 only now ram running 189mhz, 2.5-2-2-5..i know quite low..planning to upgrade the ram la...hehe