Question AFCI tripping .. replaced PSU, now out of ideas

[mstevens901]

I moved into a new house with AFCI breakers about a year ago. Within the last month, my PC started to trip the breaker while gaming. Never when browsing the internet - only when under significant load.

I first tried testing my PC on a different circuit also with AFCI breakers. That tripped too. Same circumstances - only while gaming.

So I thought maybe it was my PSU. Replaced it and all the cables with a new one (EVGA SuperNova 650 G3). Same issue - PC is tripping the circuit while gaming.

At this point I don't know what to do. Seems to clearly be a component in my PC but what besides the PSU could be the problem?

 

[scout_03]

what else is plug on these afci breaker beside the pc .

 

[mstevens901]

A printer, a lamp, and my wife's computer. But the circuit breaker never trips unless I'm gaming.

 

[DSzymborski]

If your AFCI breaker is tripping, it's time for an electrician to check it out, either for an over-sensitive breaker or deteriorating wiring.

 

[mstevens901]

What makes it unusual is that this is happening on two separate circuits. So I'm not sure that it's an electrician issue? I think it might be my PC.

 

[BFG-9000]

If you are sure the neutral and ground are connected only in the main panel, perhaps try a different brand breaker.

This document from NEMA explains the difficulty in distinguishing a PC or laser printer from a real arc fault.