I didn’t think of that. Thanks for pointing that out! I guess I can cover the inside in aluminium foil tape to stop the electrical noise

The original exhaust was at the bottom roughly where the green square is. Since the psu is mounted vertically and I’m designing a new top plate I was thinking it might be a good idea to mount the fan at the bottom so the it could be using convection to its advantage.

Here’s how the exact model psu looks like

A thin wire attached to some tape placed perfectly to short them?