Hi all.
It has been two days that I have been trying to crossfire my 2 7970 and it just doesn't work. Now I am at a point where I have completely uninstalled all AMD stuff, ran Ccleaner and Driver Seeeper. I then reinstalled Catalyst 12.4 and enabled crossfire. When I run in Skyrim, Alan Wake and Hard Reset I get half the FPS or WORSE than on each 7970 alone. I check FPS with FRAPS. I had GPUZ running ok with CAT 12.3 but now it craches my pc when I try to read info on second video card. I disabled ulps. I had 2 entries, set them to 0. For Skyrim on single card i get 45fps with eveything set to max. Alan Wake is the same thing. Also the same with Hard Reset. I read a Guru3d 7970 crossfire review and they show benchmarks that Skyrim and Hard Reset scale at almost 100%. All my tests are at 2560x1600.
I tried with one and 2 crossfire bridges connected and I get the same results. And I have the 8pin and 6 pin connectors on each GPU connected to the PSU. And I tried both PCIE Power Supply locations on my PSU when I did the single card tests so I am pretty confident that my PSU is running ok and should be able to drive 2 GPUs. I am really stumped now. Any help would be appricated.
Here are my specs:
CPU: I7 2600K @ Stock 3.4 Ghz (for now)
MB: ASUS P9Z68-V Pro Gen 3
GPU: 2 x Saphhire Refence Radeon HD 7970 3TB
RAM: 16GB 4x4GB G
PSU: XFX Pro Series 1000W Platinum
It has been two days that I have been trying to crossfire my 2 7970 and it just doesn't work. Now I am at a point where I have completely uninstalled all AMD stuff, ran Ccleaner and Driver Seeeper. I then reinstalled Catalyst 12.4 and enabled crossfire. When I run in Skyrim, Alan Wake and Hard Reset I get half the FPS or WORSE than on each 7970 alone. I check FPS with FRAPS. I had GPUZ running ok with CAT 12.3 but now it craches my pc when I try to read info on second video card. I disabled ulps. I had 2 entries, set them to 0. For Skyrim on single card i get 45fps with eveything set to max. Alan Wake is the same thing. Also the same with Hard Reset. I read a Guru3d 7970 crossfire review and they show benchmarks that Skyrim and Hard Reset scale at almost 100%. All my tests are at 2560x1600.
I tried with one and 2 crossfire bridges connected and I get the same results. And I have the 8pin and 6 pin connectors on each GPU connected to the PSU. And I tried both PCIE Power Supply locations on my PSU when I did the single card tests so I am pretty confident that my PSU is running ok and should be able to drive 2 GPUs. I am really stumped now. Any help would be appricated.
Here are my specs:
CPU: I7 2600K @ Stock 3.4 Ghz (for now)
MB: ASUS P9Z68-V Pro Gen 3
GPU: 2 x Saphhire Refence Radeon HD 7970 3TB
RAM: 16GB 4x4GB G
PSU: XFX Pro Series 1000W Platinum