Hello, I am lookign to upgrade my GPU in my HP H8-1234. About a year and half ago I upgraded my Radeon hd 7450 to a XFX radeon hd 7750. The card worked well, just for what I am doing with it (Gaming) it doesn't work as well as I would like. So I recently ordered a Gigabyte gtx 660, at the time I did not know about the bios locks that HP puts on their computers. So now I have the GPU sitting on my desk, useless. Luckily I can return it with no restock fee. The problem with it is that it boots, and then just sits on this screen that say press ESC to enter setup, or something like that. By the way my motherboard is a m3970am-hp. So I guess I have 2 questions.
1) Is there anything I can do to use the 660?
2) Assuming that the 660 is useless to me, what GPU is better than my 7750, and is compatible with my motherboard?