Hi,
Punters seem to ignore this but here it is anyway.
"Update the BIOS on your computer only if the newer BIOS version specifically solves a problem you have. We do not recommend BIOS updates for computers that do not need it. You can view all new BIOS fixes in the release notes."
I am still functioning with the BIOS as it came in the box, #17 I believe. However I haven't tried to hook up the fridge yet.
Cheers.