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?
Can confirm. Neighbors house had an attic fire with knob & tube wiring.
… Just like the stuff still in my place today. Eek! Landlord won’t upgrade unless there is a problem. In my house, the breakers are all 20amp and that’s a lot to run on, best guess, 70 year old wires.
Oh, and do not assume anything is wired as expected. Test after. I’ve found a couple plugs “upgraded” to 3-prong by jumping the load and ground together. That made for a fun firework show when my metal fan touched something metal. Even the landlord was impressed by that stupidity.
A cheaper solution is to take a copper wire and connect the ground screw of the socket to a water pipe. It does the job and is better than nothing.
Note to anyone heeding this advice: it has to be a metal water pipe, no plastic.