Like it says... turns out my MBB maybe had been trying to tell me something when it wouldn't work with certain SATA ports in use.. I just finished tearing it apart and rebuilding it to get my GPU back in the loop and lapped my CPU, and now my MBB is throwing an "88" error...which according to the manual means that the NB is toast.
So, anyone have a S775 MBB they want to get rid of? I'm hoping to not spend more than ~$50 +shipping since I can get a usable one new for about that, but figured I'd try and see if I can find something better used.