Hello all. I'm back again with a new problem. I installed new OCZ ram and computer would not boot. Changed back to old ram, same problem. Changed PSU, same problem.reseated all cables, same. Changed vid crd, same. Changed CPU for known good, same. cleared cmos, same. Changed HDD, same. The only thing I can think of is bad mobo?????? I get thru first post screen, one beep, stops after pci check on post and nothing else. Opinions, bad mobo????