Unexpected System Shutdown

brochacholibre · August 23, 2018

Hi, guys,

I'm working the kinks out of my new build.

Having just completed this:

I was experimenting with using heavy workloads. I stress-tested using 3DMark and Kombustor with pretty positive results, and Blender renders were without a hitch.

The issue came when doing certain games. After a period of time, the system powered itself off in the middle of my gameplay (crash to power off).

I don't believe my CPU thermals are the culprit. At least when the titles in question are run, are pretty consistent under or at 60 deg C.

I have a few ideas: PSU, GPU, or chipset.

The GPU is, in all fairness, actually a Vega 56 with the Vega 64 BIOS loaded onto it and undervolted. However, I didn't think it an issue since I torture tested it both gaming-wise and computationally using 3D Mark and Blender, respectively.

The PSU is 650 watt. Is that enough?

I'm worried that the chipset isn't being cooled adequately. I currently have case fan set up to mirror temps from the PCH and the motherboard, but I worry about adequate ventilation in the case. As it is I only have one case fan installed in addition to the push/pull AIO setup.

I appreciate any help on this. Thanks guys.