My 4x GTX 1060 6GB @60%FAN @~64C @70% Power Limit @100MHs
2x Galax Dual Fan @64C & 2x Zotac Mini Single Fan @61C~59C -i 23 ''CCminer-x64''
100% Power Limit @80Fan @74C @120MHs (Galax) @70C (Zotac mini)
My 2x Old R9 270x 2GB not working with sgminer (tribus*)
And GTX 770 4GB & GTX 760 2GB *UNDERCLOCK
[2017-06-25 19:09:34] GPU #0: Gigabyte GTX 770, 8683.36 kH/s
[2017-06-25 19:09:34] accepted: 1/1 (diff 0.031), 10.13 MH/s yes!
[2017-06-25 19:09:34] GPU #1: GeForce GTX 760, 6245.81 kH/s
[2017-06-25 19:09:35] tribus block 20295, diff 17.724
[2017-06-25 19:09:36] accepted: 2/2 (diff 0.011), 16.37 MH/s yes!
[2017-06-25 19:09:40] GPU #1: GeForce GTX 760, 6327.80 kH/s
[2017-06-25 19:09:40] accepted: 3/3 (diff 0.010), 16.45 MH/s yes!
[2017-06-25 19:09:41] accepted: 4/4 (diff 0.053), 16.41 MH/s yes!
[2017-06-25 19:09:45] GPU #0: Gigabyte GTX 770, 10.09 MH/s
[2017-06-25 19:09:45] GPU #0: 1206 MHz 132.29 MH/W 0W 72C FAN 70%
[2017-06-25 19:09:45] accepted: 5/5 (diff 0.017), 16.40 MH/s yes!
[2017-06-25 19:09:48] accepted: 6/6 (diff 0.032), 16.38 MH/s yes!
[2017-06-25 19:09:50] GPU #1: GeForce GTX 760, 6187.15 kH/s
[2017-06-25 19:09:51] accepted: 7/7 (diff 0.036), 16.35 MH/s yes!
[2017-06-25 19:09:51] GPU #0: Gigabyte GTX 770, 9894.41 kH/s
[2017-06-25 19:09:51] accepted: 8/8 (diff 0.027), 16.31 MH/s yes!
[2017-06-25 19:09:52] accepted: 9/9 (diff 0.019), 16.27 MH/s yes!
[2017-06-25 19:09:52] accepted: 10/10 (diff 0.020), 16.24 MH/s yes!
[2017-06-25 19:09:54] accepted: 11/11 (diff 0.044), 16.22 MH/s yes!
[2017-06-25 19:09:55] GPU #0: Gigabyte GTX 770, 9799.22 kH/s
[2017-06-25 19:09:55] accepted: 12/12 (diff 0.066), 16.20 MH/s yes!
[2017-06-25 19:10:01] GPU #1: GeForce GTX 760, 6181.45 kH/s
[2017-06-25 19:10:01] GPU #1: 979 MHz 90.55 MH/W 0W 70C FAN 80%
[2017-06-25 19:10:01] accepted: 13/13 (diff 0.085), 16.19 MH/s yes!
Intensity is set to 17, but it doesn't make a big difference between 16-17-18.
As I said, I have old cards, and not an optimized system...
What is your average hashrate for those cards?