I know that the answer is yes, I should, but outlets near the setup are not grounded (even though they look like they are) and I don’t want to have wires running though my living room.
The real question is what are potential problems ? Occasional system reboots? Permanent damage to PSU? Permanent damage to other components?
Ah, the good old reverse polarity bootleg ground.
Fun fact: RPBG is the one fault that those plug-in outlet testers can’t recognize
Edit: Wait, no, that would be hot bootleg ground, they should catch that. RPBG has the hot and neutral switched, and also a bootleg ground to the neutral that’s actually hot