Hi folks! I have a question. Will BIOS gets corrupted if CMOS battery is left dead for a while? The reason I ask is because I bought a P4 mobo from vendor and it is an non-retailer box. Apparently when I receive the mobo, I tested the CMOS battery is dead and when I put everything together, there is no POST or beep at all coming from the mobo but power light and fan are on. Any idea? I suspect the BIOS is corrupted because the baterry is left dead for too long. Is my theory correct? Please advice. Thanks.