That unit is draws close to the maximum of a 15AMP circuit.  I have this unit on a dedicated 20AMP circuit and have had zero problems for years.  When you are gaming, it is drawing at close to the max that a 15AMP circuit can handle.  If there is anything else on the circuit, the second it is activated, it will most-likely cause the breaker to trip because of the overload.  My suggestion is to get your rig on a circuit where this is the only thing on it or install a dedicated 20AMP circuit for your rig.

Your best bet is to talk to maintenance for your apartment, and ask them if they can upgrade your breaker. The wiring would absolutely need to support the upgrade from 15a to 20a, so that may not be an option. If the wiring only supports 15a, they will never install a 20a breaker.

Like grey_beard stated, if you have anything else on the circuit, like a refrigerator, microwave, washing machine, or large item that can pull significant power loads, then it is going to trip.

For starters, you can easily move to a different outlet that you know is on a different breaker. Move from the living room to a bedroom, and see if the trips continue.

If you know where your breaker box is, you can buy a Klein tool circuit breaker finder, and use that to find a different circuit that you can try out.

Klein Tools ET310 AC Circuit Breaker Finder with Integrated GFCI Outlet Tester https://smile.amazon.com/...ncoding=UTF8&psc=1

I Just bought This same power supply a couple of weeks ago.  My house was old knob and tube wiring with those glass fuses up until about a year back.  Electrical work is a major undertaking and is dangerous if you have no prior knowledge.  I replaced my panel and rewired most of my home with Romex.  I ran a homerun specifically for my computer and put a 20AMP breaker for that set of outlets my computer is on.  As pointed out previously, the wiring route could go anywhere as it depends on the electrician that originally wired the building or did maintenance over the years.