RTX 2060 getting hung on Ubuntu Server 16.04.6 x64

Last few days suddenly the gpu is getting hung. Reboot recovers but its now happening everyday. nvidia-smi gives error something like, cannot determine GPU … please reboot.

Any suggestion on troubleshooting would be greatly appreciated. Wondering if there is a log file somewhere to see wheats causin it.
nvidia-installer.log (1.46 KB)
nvidia-bug-report.log (382 KB)

You’re getting an XID 79, this is most likely caused by either overheating or lack of power. Please monitor gpu temperature, check fans, check/replace psu.