I recently built a new HTPC with an Asrock Z77 Pro-4M motherboard. I have been using it with the i5 HD4000 internal graphics as I RMAed my Sparkle GTX460 as one of the DVI ports failed.
So far I’ve received two refurbished GTX460s – both will not work in my system. I’m trying to figure out if I’ve received a second defective card from Sparkle or if there could be a motherboard or software/setting issue. I have a 9800 gtx+ that works with no issues in this system, so this leads me to think it is not the motherboard.
With the first card, the computer would boot ok, but the video output was always corrupted – the display is blocky and pixilated. The second card is intermittent. On some boots, the display will be corrupted from the start. Or it will work during boot and for a few minutes once the OS loads, then the screen turns to this after a few minutes.
I’m using the latest Nvidia drivers and tried an older (285) version with the same result.
Anyone have any suggestions on troubleshooting? The only setting I can find in the BIOS related to PCI is “PCI ROM priority” – either Legacy or EFI Compatible makes no difference.
Any logical reason why the older 9800 would work, but the new card does not?
Thanks for the suggestions…
Guess my next step is to swap some hardware and try the 460 in my old Core2 based system….