I think the most important question needs to be asked, and it seems it's been overlooked. Why the heck were you upgrading your BIOS? You're lucky it didn't turn your computer into a gigantic paperweight or oversized doorstop. If your BIOS was working fine, then you shouldn't upgrade it, unless the BIOS is so old it won't read hard drives larger than a certain size. If you were seeing BIOS errors before the upgrade, then yes, I would upgrade, but if the computer was working fine to begin with, there's no need to take the biggest risk.