Xfire 6870's 2nd GPU values below setting

mistermike

Distinguished
May 23, 2010
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0
18,510
Hello good fellows of TH, I need your assistance troubleshooting my 6870 xfire! I recently put two hd6870's in crossfire they both are running stable under Furmark and all games--Crysis 3 Beta Dishonored Just Cause 2-- although I noticed that GPU2 was only running in performance state 2 at 775Mhz Core and 1050Mhz Memory @1.100V, even though GPU-Z, GPU Shark, and Furmark all listed GPU2 was under 99% load. It should be in performance state 3 at 920Mhz Core and 1120Mhz Memory @1.231V. Cards are running below 80°C even under max load. Can anyone possibly help me with my issue please?


System Spec.
Windows 7
AMD Phenom II x4 955 Black O.C. to 3.6Ghz
16Gb 1333Mhz DDR3
850W KingPin Xfire ready PSU
Asrock Extreme4 990fx Mobo bios version 1.80
HIS 6870 1GB (GPU1) adapter slot 0 Video output
Asus 6870 Direct C.U. 1GB (GPU2) adapter slot 1

I have already tried to;
-Overclock both cards and voltages using various values on CCC, and Trixx
-Use older/newer versions of CCC, Mobo Bios
-installed CCC Application Profiles CAP 2
-ULPS is Disabled

Thankyou in advance to any tips or help you can give! ;)