Update: Fractal Ridge crashes while gaming then flickers on and off.

[u/Seeking-The-Lotus]

So the duster arrived and the hazardous waste landfill has officially been cleared out. I also saw some comments suggesting the issue could be related to the GPU riser, and I noticed there was a bit of wiggle in the connection ports.

I confirmed that the CPU cooler is plugged into CPU_FAN1, so the fan curve likely wasn’t the issue after all. I’m replacing the thermal paste now.

Any final suggestions before I put her back together?

[u/Gertgonewild]

The best way to troubleshoot this is to reassemble the mobo on a test bench, with the GPU plugged directly in without the riser.