PC Power(?) Issues -- Only at my girlfriend's house

Clarkyy

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Aug 9, 2015
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To cut a long story short, I've had trouble with my computer at my girlfriend's house for as long as I started taking it over there every now and again. To quickly describe the problem:
When I play some games my computer will, after a varying period of time depending on how graphically intensive the game is, completely power down. Black screen; no BSOD, simply turns off. It will then turn back on after 2 or 3 seconds. When this happens it also seems to reduce the amount of time between these incidents, meaning that if I was to play a game for 10 minutes then have a shutdown, it may only last 5 minutes the next time I try and boot it up.

This issue has occurred at most 4 or 5 times at my house but is a guarantee at my girlfriend's house. I don't know enough about household electricity to really be able to figure this out on my own. I've tried numerous different powerpoints in different spots across the house, and I'm fairly certain I've ruled out it being a temperature issue (especially considering I don't experience this problem at home).

The only luck I've had in stemming this issue is by reducing my GPU's memory clock, but that's something I'd definitely prefer to not be doing. I don't know why this has any effect but again, it leads me to thinking it's some kind of power issue with the house.

Any troubleshooting advice or possible solutions to his would be largely appreciated, as I like to stay at my girlfriend's during the week because it's easier to get to university from her place.

EDIT: Just some quick computer specs:
- AMD R9 290 2GB
- i5 3570k
- 8GB Memory
- 64-bit Windows 7
 

atheus

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Aug 2, 2010
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If you have a multimeter, try sticking the prongs into the AC outlet and see how many volts you've got coming from the wall in your house and your girlfriend's house. If it's a POS $5 multimeter you may want to consider goggles and some gloves while you do it. It' possible your girlfriend's house only has 100 volts or so. The answer would potentially be having an electrician fix up the wiring at her house, or investing in a higher quality "active PFC" PSU if you don't have one already. PFC means Power Factor Correction, which (among other things) corrects input voltage and increases efficiency. There are a lot of crappy PSU's on the market, and it's possible that you have an active PFC PSU that's just not doing a very good job of it. Something to consider.
 

Clarkyy

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Aug 9, 2015
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The box is at home and I currently am not so I can't give the exact model, but I know it's an older (4-5 years roughly) Corsair 750W PSU. It is a good quality one for its time but is a bit aged.
 

Clarkyy

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Aug 9, 2015
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If this does turn out to be the issue would you have any recommendations for a PSU that has PFC? Also, as I said in another post I can't get the exact model right now because I don't have time to open up my rig at the moment to check (about to leave for Uni) and the box is at home, but it's a roughly 4 or 5 year old Corsair 750W PSU.
 

Clarkyy

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Aug 9, 2015
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Thanks, I'll be sure to have a look. With any luck a new PSU will solve everything >_<