i was having some trouble with my pc last nite, i found a fix which was to remove the grahpics card then put it back in but it happend again today and i did something very very bad.... i flicked the volatage switch on the back of my psu and i heard a pop and saw a spark.... now the pc wont turn on will i be able to replace the psu? or is the whole PC fried
PSU FAIL`
- Thread starter ekam
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Soldato
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You flicked the voltage switch? Would that be the one that switches between 230V and 115V?
yeah that one
Soldato
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Was probably a poor PSU anyway, a decent one auto-senses between 110v and 230 v. Use this as a opportunity to get a decent PSU. 
Was probably a poor PSU anyway, a decent one auto-senses between 110v and 230 v. Use this as a opportunity to get a decent PSU.
yeah it was but i had some decent parts in that PC hope i didnt waste my money.... and fry the lot
Soldato
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Ah, unfortunately you killed it
Time for a new PSU. You will be very unlikely to be able to do an RMA replacement. You can try but you will have to pay for outward postage and they may bill you if/when they figure out what happened.
If you can tell us your PC specs we can specify you a good replacement.
As for whether the rest of the system is dead - you won't be able to tell until you have a working PSU to test it with. Just make sure you don't try and turn the PC on again with the bust PSU, i'd take it out of the case ASAP.
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Most PSU's even the cheap ones should have overvoltage protection so the chances are that your PC parts are ok. If you are extremely unlucky then they may not have survived but I'd be suprised if that was the case...
well i had blue screen, i restarted and the windows logo comes on saying laoding etc, that screen had white dots all over it, when it got into windows th resolution 800 by 600 it didnt recognise the gpu it says device cannot start code 10
Ah, unfortunately you killed it
Time for a new PSU. You will be very unlikely to be able to do an RMA replacement. You can try but you will have to pay for outward postage and they may bill you if/when they figure out what happened.
If you can tell us your PC specs we can specify you a good replacement.
As for whether the rest of the system is dead - you won't be able to tell until you have a working PSU to test it with. Just make sure you don't try and turn the PC on again with the bust PSU, i'd take it out of the case ASAP.
i kinda pressed the on button again when the pop happend but ive un plugged my pc now
i got 2 gig ram @ 800 mhz
geforce 8800GT
250 gig hdd
intell e8400 processor
Output overvoltage protection isn't there to protect components in primary but to prevent operating PSU from doing bad things.
Fortunately secondary is electrically separated from primary so unless primary is fed something like 2kV then it's rather hard to get anything through to PSU's output.
Sounds like reason is probably Nvidia's bad material choises in attaching of GPU to PCB.
Laptop GPUs aren't only ones where Nvidia screwed it up few years ago.
Most likely just a PSU that has gone, I have seen this a few times where a customer flicks the switch, I repaired one a couple of days ago, luckily just a varistor and fuse inside the PSU had blown so it was a pretty straight forward fix.
And as above, most likely a dry joint in one of the BGA balls on the graphics chip, very common with nvidia graphics card, most likely need a new card or a reball/reflow.
And as above, most likely a dry joint in one of the BGA balls on the graphics chip, very common with nvidia graphics card, most likely need a new card or a reball/reflow.