Can a power cut mess up PSU when PC is in sleep mode

[Sloppy2288]

I recently bought a PC and its just over a month old. Everything was working fine.

My build is AMD 7800 X3D - Sapphire Nitro + Radeon 7900 XTX

Mother board is MSI MAG Tomahawk B650

PSU is Corsair RM1000e

 

Yesterday I left my PC in sleep mode and went out. There was a huge rain and power cut. I think there was a power surge too. When I came back home I noticed that the circuit breaker for my room had tripped. Initially I didn't think it was due to my PC. When I tried to switch it(circuit breaker) back it kept tripping. So I unplugged everything and started switching on one-by-one and it was due to my PC.

I tried plugging it in another room and circuit breaker of that room also tripped.
Disheartened, I took my PC to a local PC repair shop and unfortunately he didn't have a high watt power supply to test everything. He tried with a 500W PSU to test if at least the motherboard starts, of course that didn't work.

So I'm about to start my RMA battle and just hoping that the damage is limited to my PSU and mother board.

 

I wanted to know, what are the chances that the power cut (any maybe power surge) could cause this? Is there any thing I can do to avoid this (I know..I know turn off my PC before going out...any thing besides that?).

[8tg]

A power surge would absolutely do this. And the symptoms present sound like damage from a power surge.

Your board and psu are most likely dead, your cpu, ram, drives, GPU and such are probably fine but you will want to inspect the GPU power delivery for a blown fuse. They have little surface mount fuses around the pcie power connectors and the power pins of the slot.

 

Unplug your unprotected electronics during a storm. This was the norm for a very long time with older wiring and no surge protectors.

Or get a surge protector.

[ChrisLoudon]

11 minutes ago, Sloppy2288 said:

I recently bought a PC and its just over a month old. Everything was working fine.

My build is AMD 7800 X3D - Sapphire Nitro + Radeon 7900 XTX

Mother board is MSI MAG Tomahawk B650

PSU is Corsair RM1000e

 

Yesterday I left my PC in sleep mode and went out. There was a huge rain and power cut. I think there was a power surge too. When I came back home I noticed that the circuit breaker for my room had tripped. Initially I didn't think it was due to my PC. When I tried to switch it(circuit breaker) back it kept tripping. So I unplugged everything and started switching on one-by-one and it was due to my PC.

I tried plugging it in another room and circuit breaker of that room also tripped.
Disheartened, I took my PC to a local PC repair shop and unfortunately he didn't have a high watt power supply to test everything. He tried with a 500W PSU to test if at least the motherboard starts, of course that didn't work.

So I'm about to start my RMA battle and just hoping that the damage is limited to my PSU and mother board.

 

I wanted to know, what are the chances that the power cut (any maybe power surge) could cause this? Is there any thing I can do to avoid this (I know..I know turn off my PC before going out...any thing besides that?).

Ooft,

 

Well at least you've narrowed down the culprit.

 

I would say the powering unexpectedly going off is unlikely to cause any issues except some data loss if the PC was on and doing something at the tome of the cut but if there was a surge when it came back on the that could definitely have damaged something.

 

Have you tried just changing the power cable? It could just be a burned fuse or melted wire that's causing the breaker to trip.

 

Do you have another PSU you can use to make sure nothing further down the line has been damaged???

[leclod]

Did the repair shop take the gpu out of the case and try with the igpu (which should work with 500W) ?

If yes then this points towards mobo.

I doubt two things died.

 

I was also thinking maybe blown fuse in the psu, and then I found this :

Edited June 17 by leclod

[Sloppy2288]

1 hour ago, ChrisLoudon said:

Do you have another PSU you can use to make sure nothing further down the line has been damaged???

No, I dont have any other PSUs to test.

My only option is to give all the components to respective service centers one by one and test them when I get them back.

[Sloppy2288]

59 minutes ago, leclod said:

Did the repair shop take the gpu out of the case and try with the igpu (which should work with 500W) ?

If yes then this points towards mobo.

I doubt two things died.

 

I was also thinking maybe blown fuse in the psu, and then I found this :

I already took out the GPU before taking it to the shop to prevent damage from moving the PC around.

 

He tested the mobo only with the cooler loosely mounted. None of the on board lights lit up.

[Sloppy2288]

1 hour ago, 8tg said:

but you will want to inspect the GPU power delivery for a blown fuse. They have little surface mount fuses around the pcie power connectors and the power pins of the slot.

Any reference video? I didn't get clear picture on how to do this.

[8tg]

4 minutes ago, Sloppy2288 said:

Any reference video? I didn't get clear picture on how to do this.

You’re looking for these

 

if you see one that’s visibly damaged or burnt, it’s likely that it did its job and popped to save the card

it’s an easy soldering job to revive the card if it’s dead due to a fuse burning  

 

that’s if power got that far, there are other fused components ahead of this which can pop before the GPU fuses, there’s a good chance the psu dying saved the GPU as well