I just bought an asus P8Z77-V LE PLUS, for a new build im doing. Ive tried many forums and returned the motherboard, even had it tested at the store. It works for them but when I plug it in at home it does not power up. fan moves for 1 sec. the only difference I can see from the store to me, is the PSU, is there a limit on compatibility with the PSU? i cant think of anything else. if not, any suggestions on what else it might be?