After replacing the motherboard with one purchased from eBay(cough), the computer is worse off than before. Plugging in thepower supply to the wall outlet starts the power supply fan, butnone of the drives. The three LED's on the keybaord flash likecrazy, then after a while only the one on the far right (scrolllock I think) stays constantly lit and the other two go out. Isit possible that the power supply or power cables have gone bad?Or could the processor have died? I hvae another processor Icould check with, but it's been sitting around for two years,and I won't be able to get it until the end of the month.