AdviceNewly built PC tripping breaker
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AdviceNewly built PC tripping breakerPosted:

rieb1967
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I am having trouble with the pc I built. When it is under load it pulls high amps at the wall socket and trips the breaker. I have seen the amperage peak at 34 amps. I have tried multiple new power supplies and even a new graphics card. I have ran a bunch of stress tests and everything seems to be running fine except pulling high amps and tripping the breaker. No overheating issues, no hot spots on cpu, no crashing etc. it pulls about 20 amps with 75% load on the gpu. I have tried moving the gpu to a different slot and a new gpu but I get the same thing. I am running out of ideas PLEASE HELP if you can. I appreciate any ideas you got.
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you're pulling over your transient limit likely.

What is your supply voltage? 120/240 or 110/220.
What is the breaker rated for?
How are you reading the amperage?
What is the power supply rated for wattage wise?
What else is plugged in? see below.|

The odds of the PSU overdrawing because of a dead short are pretty low, they are limited to what they can supply through their rails and often doesn't reach the point of tripping your breaker.
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rieb1967
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Supply voltage is 110/220
Breaker is 15A. I have tried using a different circuit in the house and took it to a friends house.
I have a line splitter plugged into the wall and I put an amp clamp on that.
Power supply was a 750w gold. now I have an 850w gold. I should have more than enough power supply to handle what i have.

I5-12600k I have an i7 on the way for an upgrade and to see if it causing a problem. Also I will be replacing my RAM

MSI GTX 3060
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rieb1967 wrote Supply voltage is 110/220
Breaker is 15A. I have tried using a different circuit in the house and took it to a friends house.
I have a line splitter plugged into the wall and I put an amp clamp on that.
Power supply was a 750w gold. now I have an 850w gold. I should have more than enough power supply to handle what i have.

I5-12600k I have an i7 on the way for an upgrade and to see if it causing a problem. Also I will be replacing my RAM

MSI GTX 3060


you're given around 1600 watts on that 15a. Anything else on that rail somewhere down the line? I'd run a kill-a-watt to get what it's pulling on startup and work from there. In a perfect world you're pulling a little over 3200+ on startup which shouldn't be possible unless there is a dead short either on the board or in the supply itself. The rails within them usually are rated for a max amperage. i.e. the 12v rails can supply the full 850, or near it something like 835. a combination of overloaded rails can usually go 20% over before failure. ~970w would be the max draw.

Where it gets confusing is how the wall is getting taxed that hard. The power supply itself can provide say for a 850w around 70a over the 12v to get pretty close to 850. 850 would be ~70.8. the wall should only be getting ~8-9a to get that load under full load. Like i said previously is there anything else plugged in or just this? Most supply's are rated for 5-12 amps before the overcurrent protection kicks in and steps everything down or shuts the supply off.
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rieb1967
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Nothing else is using power on this circuit. Just pc and monitor. MSI replaced my mother board. I sent it back to them thinking that there was an issue with it. Got a new motherboard back and still have the same problem. I've tried multiple power supplies also. For the short time that I am able to run it under load (before i trip the breaker about 1 minute) nothing slows down, processor speeds stay the same, graphics card doesn't slow down and power supply never shuts off.
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