I have two Nvidia RTX 2080 GPUs on X16R. I am having issues with the fan on the second GPU. I have both fans set to 100% but the fans won’t run on the second GPU. They are both accepting power limit overclocking and If I swap the cables in the PCIe slots around the second GPU fan works but then the first doesn’t. It appears whatever GPU is listed as GPU 0 in HiveOS works and GPU 1 (2nd GPU) doesn’t.
I am running the latest Nvidia driver version 410.66 which I am starting to think might be the problem. I was using driver version 390.59 but there was no support for the RTX 2080 so I updated to the latest.