Power cord came out of the wall. Few questions.

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GargantuanOne

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Mar 11, 2015
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Hello everyone. I have a $1000 gaming PC and I just moved, so I had to place my tower on some boxes for now along with my speakers and such. My cords run near the back of the room to the other side. My psu cord is connected to a power surge protector strip, and the strip is connected to the wall. My dogs jumped on my bed, and one of them jumped off the other end without my knowledge and pulled the cords down, ripping the surge strip cord out of the wall a bit. Not all the way, but it was dangling out to an extent. The computer shut down but it turned back on and I didn't notice anything was wrong after. Although at startup just when it turns on there's a half-second black flash which I'm not sure was there before the incident.

My questions are:

Is there a good chance my some parts are damaged?

Did the surge protector protect the parts from a voltage surge upon startup? Or protect it in general?

And is there any real way of knowing if anything is damaged?

Also, what parts are the most likely to be damaged from abrupt power shut offs?

All help is appreciated, thank you.
 
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Since any surge would have occurred between the socket and the prongs of the surge protector, the surge protector should have done its job of suppressing the surges between the socket and the computer - if it's functioning properly. If you have faith in your unit, it's good.

The most likely part to be damaged would be the PSU. Anything downstream (mobo, etc) should have been protected by the PSU if it is of good quality. A poor quality PSU (read cheap) wouldn't have that protection and other things might be damaged but it sounds like you are OK. If you are in doubt, reset your BIOS as the mobo manual instructs.

About the only way to identify other damaged parts without an electronics shop is physical inspection, looking for scorch...
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thx1138v2

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Jun 18, 2011
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Since any surge would have occurred between the socket and the prongs of the surge protector, the surge protector should have done its job of suppressing the surges between the socket and the computer - if it's functioning properly. If you have faith in your unit, it's good.

The most likely part to be damaged would be the PSU. Anything downstream (mobo, etc) should have been protected by the PSU if it is of good quality. A poor quality PSU (read cheap) wouldn't have that protection and other things might be damaged but it sounds like you are OK. If you are in doubt, reset your BIOS as the mobo manual instructs.

About the only way to identify other damaged parts without an electronics shop is physical inspection, looking for scorch marks or discoloration of parts and/or circuit board compared to similar parts/areas around them. And of course, parts that malfunction.

My guess overall is that you are fine and resetting the BIOS might solve that momentary black screen you are seeing.

BTW, if you have another similar problem be sure to turn the PSU off at the PSU switch, plug it in, and then turn it on just to be safe..
 
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GargantuanOne

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I don't have extremely expensive parts, but enough that the computer should be protected like a child. An i5, an EVGA NEX supernova 750w (which should come with a built in over-voltage protector I believe), etc.
With the surge protector and built in psu surge protection I think the protection is enough to prevent any damage from occurring. Am I right?
 
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GargantuanOne

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Appreciate it, thank you. The psu is EVGA SuperNOVA NEX 750 B 80 PLUS BRONZE Certified 750W which is sort of cheap, isn't 80 plus gold certified, but it does state under specs: Over-voltage protection: Yes.

 
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TJ Hooker

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Maybe I'm missing something, but what makes you think a surge even occurred? Do you have any reason to think anything was damaged, other than some sort of flash on startup (don't really know what you're describing here), which may or may not have always been there?
 
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GargantuanOne

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The black flash is basically a very fast (half-second) flash of blackness on my screen upon startup when my Win 10 desktop appears. It just flashes black very fast out of nowhere and everything is fine after. I can't say whether or not a surge did occur, but that's why I'm here to ask questions and get answers. It's very possible for a surge to occur after the power is suddenly shut off and turned back on. It happened to my other computer and ruined my psu.
 
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TJ Hooker

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Did your previous PSU experience the same thing, i.e. being physically unplugged/replugged very quickly? Or did your house experience a momentary power outage?

I honestly don't know how unplugging/replugging the PSU quickly could cause a surge. And if it did I feel like it'd be more likely to be a current surge, which probably wouldn't be protected by a surge protector as they're typically designed to protect against voltage spikes.
 
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thx1138v2

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FYI, the 80 PLUS certification is only related to the efficiency of the PSU, not the quality. You always want to check the PSU specs and not rely on the certification. Over voltage protection is what you want vis-a-vis surges/power outages.
 
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