Hey people I just got a second 7970 and installed it today and I have been having some really weird problems. I am on 12.7 beta all crossfire cables are hooked up correctly and all that. When I turn on my pc it works fine I can adjust manual fan speed and overclock thru catalyst but when I open GPU-Z it takes several minutes to open and it extremely laggy. The second card has really weird readouts like it says 32-bit memory, only has half the readouts in sensors and none of them work at all. RPM goes between 660 and -- when the fan is actually spinning just normal speed I can see it. the voltages go all over the place as well as frequencies in a very unnatural laggy way. then i close gpu z and go to catalyst and i have no control over the second card and all the sensors in cataylst read 0. also if i boot and dont open gpu z at all then play a game and come back to catalyst i will have lost control and readouts again. it also freezes the whole pc occasionally making me have to reboot
both cards are HIS IceQ X2 same exact cards I have switching them around and running them both single so I know they both work fine. no matter what the configuration of two cards the same errors happen as i wrote above. I also tried switching between the second bios chip and the first on both cards which did not make any difference.
i thought i would also mention that in game it works perfectly fine, crossfire works fans work everything works i get about 100-110 fps in bf3 avg
PSU- ABS Majesty 1100 Watt Gold Certified
MoBo- ASUS P8Z77-V
CPU- Intel Core i7 3770
RAM- 16gb 1600MHz G.SKILL Ripjaws
OS- Windows 7 64
thanks for any advice i am a bit stumped on this one
both cards are HIS IceQ X2 same exact cards I have switching them around and running them both single so I know they both work fine. no matter what the configuration of two cards the same errors happen as i wrote above. I also tried switching between the second bios chip and the first on both cards which did not make any difference.
i thought i would also mention that in game it works perfectly fine, crossfire works fans work everything works i get about 100-110 fps in bf3 avg
PSU- ABS Majesty 1100 Watt Gold Certified
MoBo- ASUS P8Z77-V
CPU- Intel Core i7 3770
RAM- 16gb 1600MHz G.SKILL Ripjaws
OS- Windows 7 64
thanks for any advice i am a bit stumped on this one