I'm going to give this a try as EWBF is only giving me this on a 4 GPU system:
Temp: GPU0: 59C GPU1: 65C GPU2: 69C GPU3: 64C
GPU0: 259 Sol/s GPU1: 265 Sol/s GPU2: 261 Sol/s GPU3: 262 Sol/s
Total speed: 1047 Sol/s
+-----+-------------+--------------+
| GPU | Power usage | Efficiency |
+-----+-------------+--------------+
| 0 | 220W | 1.18 Sol/W |
| 1 | 144W | 1.84 Sol/W |
| 2 | 170W | 1.54 Sol/W |
| 3 | 144W | 1.82 Sol/W |
+-----+-------------+--------------+
GPU0 is a 1080Ti and the other 3 are 1070's
I'm expecting around 1800 Sol/s (according to whattomine)
BTW, the zm.exe scan's mostly clean using virustotal, score is 4/68
https://www.virustotal.com/#/file/39209c0077e1fc42a5f511ac9e81817073a8d4623ebfc57fbec3308f96457316/detectionYour speed is low. You might need a good driver or reduce the memory frequency for the 1080Ti.