Bought a GTX 660 graphics card, and i am having problems.
On boot up the boot screen is immediately corrupted with streaks/lines of blotchy colour. If it gets as far as the Windows login screen (which you can only just make out) it usually freezes and i have to reboot.
On the odd occasion that i have got further, i have tried the most recent driver, older drivers, and Beta. All with the same results.
It replaces a GTX 260 which requires more Wattage and more amps, so the PSU isn't the issue.
The 660 is pci-e x16 (3.0) But is backward compatable with my 2.0 m/board.
Windows 7 64 bit
12 GB DDR 3 ram
Intel i5 CPU.
When i put my GTX 260 back in all is normal again.
any suggestions/ Or do i just take it back to my local PC shop for a replacement?