Dual 1080 Ti different sols. Mining zcash

[olal]

 I have 1 pc with 2 1080 TI mining zcash. I use EWBF. One card (GPU 0) gives me around 547 sols and the other one (GPU 1) gives me around 727 sols. Why cant get 727 in both? I have another pc with another couple of 1080 ti and have the same problem. GPU 0 gives 600 sols and GPU 1 gives 710 sols. They are not O.C. and both pcs use 850 watts psu 80plus. I dont know where is the problem. Hope someone can give me some light pls

[bluecoinX]

If your two CARDS are cross fire, I think maybe you should switch to a video card driver or a new mother bord, or try to replace the mining software.

[bluecoinX]

Mining is a troublesome thing, sometimes debugging software is really annoying, sometimes the software version will also have impact, I hope you can solve the problem in time.

[Zephid]

the first card its connected on the PCI-E 16x? with riser or no riser? u use windows or linux? u primary video its comming from the gpu or the onboard motherboard video?

maybe some config on u miner can resolve this, equihash for what i know dosent mess up the primary from the secondary card hash rate, use u intensitive -i command to see if change samething, need some time trying to resolve this its normal.