Fire hazard being messing something up by tinkering with the PSU. It’s not worth it over something that can be replaced for so little money. And I think it’s just more about swap out the most likely failing component (the PSU) and see if the problem goes away. If it doesn’t then you know it wasn’t the PSU.
When I played COD (whatever the last one was before this most recent release) I loved playing shipment for laughs. Hide in a corner and setup claymores while aiming my shotgun down sight. Stupid stuff like that. I’d be 10-30 by the end but I’d have so much fun. To me it’s almost like an arcade mode.