Hi, I have an old desktop (approaching 10 years) and I haven't really been using it for much, just to test GPUs on it. The computer stopped POSTing. I have 2 sticks of ram for it, both 4gb, one has been dead for a while. I tried both sticks recently, since I was trying to diagnose the no POST issue, I saw that it wasn't slotted in properly (I made a very big mistake and forgot to line the notch up) and now theres a burn mark on that stick of ram. Has this killed my motherboard? I know only one slot works, but no matter what I do, the system powers on, but no post, I tried onboard graphics and the discrete card, both slots of ram, still nothing. Any ideas of what this could be? Thanks.