Tripped breaker and built PC won't turn on

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tsquared27

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Nov 22, 2013
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I came into my room and my PC that I built just a few months ago was asleep. I pressed the space bar to wake it up and basically the entire room went out. After going and flipping the switch in the panel, the power in the room was on again, but my computer won't boot up now. I'm guessing the PSU is shot, so should I replace it? because that's like $90 I have to drop. Is there any way to test to make sure it's dead? Also, I would really like to know what caused the breaker to trip in the first place. Any help would be appreciated.

If it matters, PSU is a Seasonic M12II 620 BRONZE SS-620GM 80 Plus Power Supply
 
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Shaun o

Shaun o

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Oct 7, 2007
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Power supply's have many protection features.

In some cases the protection features kick in.

To reset the protection status.
The switch on the power supply must be turned off.
Remove the power cord for about 30 seconds.
Then reconnect it to the psu.

Turn the rocker switch back to normal operation.
And any protection circuit should be reset of the psu.

Note if you have a breaker in the house, the trip of it then a power up will cause the Psu protection circuit to do this.
 
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tsquared27

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Nov 22, 2013
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I tried this but I don't seem to be having any luck. Any other suggestions?
 
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unksol

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Sep 12, 2011
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what country are you in? is your power supply generally "stable"? that could be an issue BUT...


Seasonic is generally regarded as the top PSU maker. and their warranty is usually 5 years. Do an RMA. they may ask you to pay for shipping. if you don't want to pay call them and they may give in.

point here. seasonic is pretty much the top of the line PSU maker. they should stand behind their product no question. you might be out $10 shipping it. but def not $90

 
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tsquared27

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Nov 22, 2013
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This makes me feel a lot better, I'm just hoping it didn't destroy any of the other components, though I don't know if that is a common occurrence or not. I live in the US, and power fluctuations where I live tend to be uncommon. Like I said, it seemed to happen right when I woke the computer up from sleep mode, so I don't know how critical that was to the tripping and why it even happened at all.
 
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unksol

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Sep 12, 2011
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as an international forum we get some people with VERY unstable electric. hence why I asked.

As said there are many protection features and with seasonic you know they are there vs a low end PSU. I highly doubt your system was damaged. its always possible of course but very unlikely.

as for PSU testers
www.newegg.com/Product/ProductList.aspx?Description=power%20supply%20tester&Submit=ENE

I have one but I work on a lot of "friends" PCs. if you will only ever work on yours it is probably cheaper to just RMA the PSU
 
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tsquared27

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Nov 22, 2013
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I'm quite sure my boss has a tester, so I'm going to use that first to assess the damage and go from there I guess. I'm sure you're no electrician, but any ideas on how to prevent this from happening in the future? I wouldn't want this to become a usual occurrence.
 
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unksol

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Sep 12, 2011
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wellll.... I actually have a degree in electrical engineering and computer tech. right now it sounds like you got a rare bad PSU that shorted and tripped the breaker. this should in no way be usual or even preventable. but a bad part slips out sometimes
 
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tsquared27

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Nov 22, 2013
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Well that's very convenient! Alright well thanks for all the help! I'll test it out when I go into work next and send it back if there are any problems.
 
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tsquared27

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Nov 22, 2013
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So I borrowed a good PSU tester and I plugged my PSU into the wall and the atx cord into the tester. I get no response on the psu tester even though the PSU is switched on. I'm going to conclude that the thing is toast, right?
 
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