Update: Since I have a liquid cooling system, I did not plug in the CUP fan the first time. I did and the motherboard ran, and continued to power on and off fine after removing the thing.
I still have a problem, seemingly, with a pair of RAM sockets. I have 6 RAM cards and tried installing all of them but go the 3 beeps pause bios error. I tried shuffeling them around, but whenever I have the rams installed in those sockets, Channel A, the error resumes. When nothing is installed there the system boots up normally.
GPU: AMD HD radeon 6990
PSU: Black Widow 850W
RAM: 9 GB total (3 1GB cards and 3 2GB cards)
Everything else works as it should apart from when the RAMs are installed in said channel (the one closest to the CPU in location)