Why did my PC trip the breaker while gaming?

Make sure to consider what was plugged in at the time. In apartments, there are often limited circuits, so if other high-draw devices like AC units or heaters were running, they could easily overload the circuit. It's wise to keep heavy devices on separate circuits when possible to avoid these issues.

A PC usually shouldn't trip a standard 15A breaker on its own. Check to see what else is plugged into the same circuit; things like air conditioners, heaters, or microwaves can cause overload. If your PC is on a circuit shared with heavy appliances, it might explain the trip.

It's possible that while gaming, your GPU demanded enough power for a long enough time to trip the breaker. How powerful is your GPU? If you have a decent power supply, you should be fine, but it might be a good idea to run some benchmarks to check the power draw and temperatures. Try using HWinfo to monitor everything during the tests. If the PC runs smoothly afterward, then you’re likely in the clear.