Dipankar -The Asus 5750 works
Welsh- With the XFX, the computer will get to the "Windows is Starting" screen. Sometimes it makes it to the login screen, hangs, and then the display goes black. No soothing startup tone though.
Sometimes it goes straight from the "Windows is Starting" to a black screen.
Swapping when I swap in the Asus, I have no problems.
** I was able to log into Windows once today with the XFX. Opened GPU-Z, 15 seconds later I got a pink screen.