Just got a license for 2 rigs to get out of HiveOS.

Unfortunately, I'm unable to overclock any of my 10 GPUs on the first rig where I want tot test AM.

RIG OS: Ubuntu 20.04
Linux agent installed  (RIG is fully managed by AM)
Rig discovered by AM Windows app
Can stat mining... but useless as I can't at least set fan speeds to what I want. Overheat within a minute and I have to stop it
GPUs: RTX A4000 and RTX A2000 and one RTX 2060 super

Error message I get: Unable to read GPU information.

Should I conclude that overclocking feature is useless for a mining rig running on a Linux OS?  if so, I will have to ask a refund as I don't want to run on Windows