My graphics took a dump and I got a used MSI Radeon HD 5770 Hawk ( I know its old, but hey we can't all afford new stuff). How do I know if it is compatible with my ASUS M4A78LT-M motherboard and my Ac Bel HBA008-ZA1GT 350 PSU. I have plugged it into my board, and of course the fan powers up, but the monitor is NOT recognizing anything being plugged in. Is this a board problem or psu problem? The cpu is an amd athlon II x2 220