shamsmu :
hu4228 :
Then is there a possibly a chance that there is an actual fault with the GPU?
yes there is a possibility. However, from experience, I would bet all my money on the fact that your OEM motherboard is what's causing all the problem. But you can test that graphic card on another computer if you can.
Hmm... then there's something I don't understand here.
Why does it work for 7750, where as it does not for 660?
Or is it because they're two completely different hardware?
Also again, I've never heard of a GPU making a computer hang in such a way, so I guess it is a problem with the OEM Foxconn Cupertino2 motherboard.
edit: I think I got 5 beeps, and according to this website(http://pcsupport.about.com/od/fixtheproblem/tp/ami-beep-codes.htm), it says it might be a problem with the expansion slot?
Anyway thank you shamsmu, for providing me a solution. I was on the verge of passing out as this has never happened.