Here's a funny bug in BIOS F4a for ya. For the last two weeks or so I've had a "cold boot" bug where my system would not cold boot when overclocked. Every time I tried, the boot would stop and I would see "BOOT DISK FAILURE blah blah blah" and then I'd hit reset and everything would be fine. Well, I experimented a bit and here's what I found out. I have a 150GB Raptor and a 250GB WD 2500KS drive. When both are plugged into yellow SATA slots, the motherboard ALWAYS thinks my 2500KS drive is the boot drive on a cold boot. Changing the boot order does nothing. The 2500KS drive is always in position one after a cold boot. So I plugged the 2500KS into a purple slot and kept the Raptor in yellow slot 1 and now everything is fine.
Here's the real kicker. In any BIOS past F4a, the BIOS though the boot failure was caused by the overclocking and would reset my BIOS instead of stopping with the BOOT DISK ERROR message. So now that I have my drives on separate controllers, I'm going to try the official F4 and see if I'm OK now.
Has anybody else encountered this? It's almost like the motherboard is automatically making the largest HDD the boot drive.
EDIT: I'm fine with BIOS F4 now. I'm going to keep my HDDs on separate controllers from now on.
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