yoda-sama said:

Other than that BIOS battery trick, I would have said to make sure to drain whatever capacitance was left in the mobo by unplugging the power then depressing the power switch for a few seconds. I've fixed a few odd issues that way (some of which BIOS updates did address what caused the problems).

That was the very first thing I tried ;-)

As for the RAM not working, is it exactly the same as the first set? If not, what are the differences (speed, timings, size, brand, etc.)? Also, have you tried putting in JUST the new RAM, to see if it is a conflict between the mix of old and new RAM (rather than an incompatibility between the new RAM and your mobo, or just bad RAM).

Yeah, I'm going to try that tomorrow. But the new RAMs should be exactly the same as the old ones - I even used the same link to order them. But I'm hoping a BIOS update will take care of it - my friends said he was reading up on it and it seems with older BIOS versions, this mobo had some trouble having all the RAM slots filled, so hopefully they fixed the issue in the upgrades.

EDIT: I just looked it up and it seems this is a problem typical for this mobo:

http://forum.giga-byte.co.uk/index.php/topic,13267.0.html

The thread is from almost a year ago, so I'm kinda hoping that they have since released an update taking care of it.