Question Computer tripped fuse breaker when moved

[duncangroberts]

Hi there. This morning, my computer which has been running fine for over a year tripped the fuse box in my house, just when I moved it a little. It's on casters on the floor so I shifted it to the side to check something. Now, whenever I reset the fuse box and plug in any kettle lead, I've tried a few, the breaker trips. Have I nuked my pc? Everything else in the room works? As I write this, I unplugged the motherboard and GPU power and replugged them in and now I get nothing, no tripping or response from the pc. Bit of a nightmare! Any help much appreciated. It's a seasonic 1000w PSU with an Asus tug gaming x570 motherboard.

 

[punkncat]

The x570 motherboard and size of that power supply infers a CPU with no graphics and a card of good size.

Do you happen to have a very low power graphics card available to use?
Best bet would be to unplug everything that isn't critical to post, while using a very low power display only level graphics card and see if you get a response. Other aspects would include testing the power supply, looking for loose items in the case, making sure everything is seated properly. May even be worthwhile to breadboard the components for checking. A known good power supply could be handy as well.

Does your motherboard have any fault LED's or a speaker that you can hear beep codes from?

 

[duncangroberts]

Thanks for your response! Yes sorry it's a 5800x3d and a 3090. Unfortunately I don't have another graphics card to check and no real access to one. I don't get any response from the motherboard, just a straight trip on the fuse as soon as I plug it in and switch on the PSU at the back. I'll try unplugging the GPU and seeing if I get a response. If there's been something loose in the case, could this have fried the motherboard?

 

[bill001g]

I would try another outlet/circuit breaker although it likely will make no difference. Circuit breakers can only be tripped so many times and in effect wear out. When they go bad they trip very easily under much less load.

Generally quality power supplies have feature in them that protect against overload and against damaging other parts of the system if you get a failure.

Try to disconnect all the power supplies cables from the motherboard and gpu and anything else you have connected. Now go find a video on youtube that shows how to test a power supply using a paper clip. Best if you have a mulitimeter to test but in general you should be able to tell if the power supply comes on. Most times the fan will spin for a while. If it blows the circuit breaker with nothing connected then you assume a bad power supply.

You might also try to boot the motherboard without the video card. All you are looking for is does it appear to at least partially boot. You are going to have to look the led codes up for your board but I suspect it will get stuck on the one that means there is no video card. It still will give you a clue that the power supply and motherboard are ok and maybe it is the gpu causing it.

 

[pete_101]

Hi there. This morning, my computer which has been running fine for over a year tripped the fuse box in my house, just when I moved it a little. It's on casters on the floor so I shifted it to the side to check something. Now, whenever I reset the fuse box and plug in any kettle lead, I've tried a few, the breaker trips. Have I nuked my pc? Everything else in the room works? As I write this, I unplugged the motherboard and GPU power and replugged them in and now I get nothing, no tripping or response from the pc. Bit of a nightmare! Any help much appreciated. It's a seasonic 1000w PSU with an Asus tug gaming x570 motherboard.

I'd bet money something in your PSU shorted out, there is a good chance you'll need a new PSU.

There is nothing on your motherboard or GPU which could cause a fuse to trip, it has to be either the PSU or it's lead, and as you tried other leads, that only leaves the PSU.

 

[duncangroberts]

Thanks for all the responses. It's late here but I'll go at everything here tomorrow and report back. Really appreciate the help.

 

[stonecarver]

My thinking as well bad wall outlet, you moved Computer/ cord it put a bind on prongs in wall outlet and boom.

Hopefully just your power supply took the hit.

 

[duncangroberts]

Ok so I've run the test on the PSU using the official breaker tool rather than a paper clip and the PSU fan does not spin at all..I'm guessing it's the PSU and have ordered a new one. Fingers crossed!

 

[bill001g]

The fan test spinning test used to be a really good indicator but now fancy power supplies do not turn the fan on until they start to get warm.

I suspect though the power supply is the likely issue. Lets say you were to short out the wires going to the GPU. Most times that would either burn something out in the power supply or trip off a temporary circuit breaker inside the power supply itself. Years ago power supplies used to have actual fuses you could replace internally.

For the power supply to blow the circuit breaker in your power panel it is more likely it has a issue on the side of the power supply going to the wall rather than the part going to the computer. Hopefully it did not damage anything else it is pretty major when it trips off a house breaker.

 

[duncangroberts]

Update, a new PSU has resolved the issue. Thanks so much for all your help. The paperclip test was the thing that helped the most!