Computer won't turn on after socket outage.

bakes0310

bakes0310

bakes0310

Soldato
Joined
22 Oct 2004
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I turned my pc on this morning, a second later it turned off and it turned all the sockets in the house off. Flicked the switch on to get the sockets back on. Tried the computer and it won't come on at all there's no lights on the system or fans moving, just nothing.
Computer is completely new and built at start of October, what's wrong and how do I fix it?
 
Remove the GPU and try to start the PC. I had the same issue and a short had developed on the GPU. the PSU sensed the short and stopped the PC starting.
 
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If the fault tripped a ring circuit MCB or RCD and it wouldn't turn on after power was restored then it is indeed highly likely that the PSU has suffered an interval fatal fault. RMA is correct action. Opening the PC and risking terms of warranty is not.
 
I had the exact same issue 6 years ago. turned my pc on and and it went straight off tripping the sockets in the process. I switched the sockets back on and my psu went bang and yes it did go bang, very loud. This is likely a psu fault and as @therealdippy has said. Risking warranty is not worth it by opening it up. While under warranty rma is always best. 95% of high end psu's can take the full short and not damage any other components connected. Had a few psu short/pop/bang and never lost additional hardware.
 
Thanks for the reply everyone. So I managed to take the PSU out and put it back in original box. Off to my local post office tomorrow and hope overclockers confirm it's a PSU.
 
Bit late
But if something trips the rcd
Make sure the switch on the psu
Is at the off position
Before turning the power back on/flipping the rcd
Had this happen years ago
Power went off
And apparently the surge/inrush when you restore power
Can blow stuff that's at the on position
Even if its currently not actually turned on
At least that's the explanation from my energy supplier
I have my pc on a surge protector
As well as having an up to date consumer unit
 
Mcnumpty2323 said:
And apparently the surge/inrush when you restore power
Can blow stuff that's at the on position
Even if its currently not actually turned on
At least that's the explanation from my energy supplier
Click to expand...
Highly unlikely. I really struggle to imagine how any device would suffer unless there was another fault condition present. The only problem I can imagine is if the circuit is at or near its maximum load (32A for most UK ring circuits) and so the combined inrush current is sufficient to immediately trip the breaker. But this would not cause any damage.
Mcnumpty2323 said:
I have my pc on a surge protector
Click to expand...
Surge protectors are for over voltage protection - nothing to do with current surge. Main risk is from lightning. The IET recommend them for instances where an overvoltage condition could result in injury or loss of life. That would be very case and equipment dependent. Good idea if you have expensive equipment, but they are not 100% protection. We had a lightning strike which cause damaged to a network switch, but not over the mains supply, we we just unlucky that the EM affected low voltage circuits directly.
 
Update:
Overclockers stated that the power supply was faulty, but they couldn't replace it with another one as it was out of stock. So instead they are replacing it with the platinum model at no extra cost. Fantastic support from them and a bit of relief to know it was a faulty PSU else I would be a bit stuck on what went wrong.
 
Installed new power supply, everything is up and running from what I can tell. Is there any checks I should do to make sure it's okay?
So far I have:
Checked device manager
Temps of parts
Checked bios for temps aswell, also to see if my expo is still on.
Played 5 minutes of baldurs gate 3, no changes.
 
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