On the video, there is my NZXT H1 with strange noise coming form PSU, but it's happening only sometimes, at boot, while idleing at windows.
But overall I didn't noticed any instability, (only random black screen in Warzone 2.0, but more likely it can be their issue, cuz no issues in other games) even while stress testing.
My 5600X has no VSS pin next to the gold triangle under the CPU. But works ish...
I noticed also, that when this happening "coil whine or sparking" my unused second monitor just starting up for a few sec, and going back to sleep again.
Can lack of VSS pin, causing PSU some issues ?