chaos seems to be saying it works too so i don't know. i was just looking for a changelog and when i googled it several links popped up all saying p5k3. why would asus give 2 different bios's the same number? if it borks up boards they would be hosed. afaik these boards use different bios's since one is ddr3 and the other ddr2. i just noticed the discrepancy and wanted to point it out in case it is the wrong file.