simplemining does not apply powerlimit! please help 
it shows OC and 190 powerlimit at each gpu on startup but real powerlimit is all over the place.
12 gpu 1080ti rig

ccminer alexis lyra2v2. i itried other ccminers too.

powerlimit set 190w and i get 143W or 160w only

[2018-05-07 04:20:29] GPU#2: Gigabyte GTX 1080 Ti, 56.43MH/s
[2018-05-07 04:20:29] GPU#2: Gigabyte GTX 1080 Ti, 0.36MH/W, 0.038MH/Mhz
[2018-05-07 04:20:29] GPU#2: Gigabyte GTX 1080 Ti, 63C(F:60%) 1468/5005MHz(155W)
[2018-05-07 04:20:29] GPU#10: PNY GTX 1080 Ti, 56.40MH/s
[2018-05-07 04:20:29] GPU#10: PNY GTX 1080 Ti, 0.35MH/W, 0.038MH/Mhz
[2018-05-07 04:20:29] GPU#10: PNY GTX 1080 Ti, 74C(F:65%) 1468/5005MHz(163W)
[2018-05-07 04:20:29] GPU#8: PNY GTX 1080 Ti, 56.30MH/s
[2018-05-07 04:20:29] GPU#8: PNY GTX 1080 Ti, 0.35MH/W, 0.039MH/Mhz
[2018-05-07 04:20:29] GPU#8: PNY GTX 1080 Ti, 74C(F:60%) 1455/5005MHz(159W)
[2018-05-07 04:20:40] [S/A/T]: 2/369/372, diff: 3.892, 686.82MH/s yes!
[2018-05-07 04:20:41] GPU#7: EVGA GTX 1080 Ti, 57.40MH/s
[2018-05-07 04:20:41] GPU#7: EVGA GTX 1080 Ti, 0.4MH/W, 0.038MH/Mhz
[2018-05-07 04:20:41] GPU#7: EVGA GTX 1080 Ti, 64C(F:60%) 1506/5005MHz(143W)
[2018-05-07 04:20:46] [S/A/T]: 2/370/373, diff: 5.481, 686.75MH/s yes!
[2018-05-07 04:20:47] [S/A/T]: 2/371/374, diff: 3.909, 686.73MH/s yes!

i had same issue with older dtsm equihash but new dtsm works perfect.

powerlimit 190,190,190,190,190,190,190,190,190,190,190,190 does not work
--plimit=190w,190w,190w,190w,190w,190w,190w,190w,190w,190w,190w, does not work also