My PC broke down a few months ago and I'm just getting around to repairing it. When it broke I had a "GTX 750 TI" that I bought off of Ebay and it turned out to be a GTX 550 TI. Well that was when things went south... the computer refuses to post and I was thinking it was the RAM, the motherboard, or the CPU. But I got to thinking could that fake GPU have killed my PCI-E slot, because my FX-4300 has no integrated graphics and I only have 1 PCI-E slot on my motherboard. Does anyone know how to diagnose a dead PCI-E slot in my circumstances? Any help is appreciated! Thanks!