PC keeps tripping my breaker

My friends pc randomly died so I gave him my psu (800w) to test if his psu (600w) was dead. His pc turned on, so it was a bad psu, but it ended up killing mine in the process. I went out and bought another one for my pc (850w), tested it on my own pc (which had no previous problems), and it trips my breaker (15A) every time it’s turned on. It’s been a really frustrating day lol.