Can you write again what is wrong ?
I cannot find exactly what do you mean guys
Do You mean undervolting that it is not working properly ?

I will be looking into newest kernel and newer undervolting tool.
Most changes can be done in gpu bios itself to take less wattage.
Also if undervolting doesnt work in your current rig, please try older image:
http://download.simplemining.net/simpleminer-RX-v1118-16.60-dagfix.img.zip (this is with compute rock kernel)
http://download.simplemining.net/simpleminer-NV-RX-v1146-smos.img.zip (this is custom kernel -smos which is on main website and it seems that undervolting in some  some GPUs does not work under this kernel)
So please hover on rig name and see which one you curently have and try other one.
Both have dagfix patch in it so eth speed should be more less the same.