|I think there is a ittle typo in #3 "do do it" should read "do not do it".|
You should not do BIOS updates at a whim like other updates. Good to hear you've been lucky but if anything goes wrong you might need a new motherboard. BIOS updates flash the chip! As said, you should only update BIOS when it shows a fix for some definite problem you are having. Mostly it is to accommodate a different processor and things like that.
Always pop back and let us know the outcome - thanks