NVML: cannot get current temperature, error 15

[bobster316]

I am running SimpleMining on a 6 GPU rig and getting this intermittent error  "NVML: cannot get current temperature, error 15"

Prior to getting this error which hangs up the system, there is no indication of any
temp issues on any of the GPU's.

Can anyone help to advise best way to identify what is causing this issue. Are there
any log files I can check to narrow down what the problem is?
I have removed any overclocking just in case.

Thanks

[fanatic26]

Please post in the proper section, this section is not for GPU mining rigs.