HELP my computer shuts down while playing games, went through weeks of this

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Ian Jans

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Sep 1, 2014
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Hello,
So i have a custom built gaming pc a bought about a year ago, and a month ago i started having problems.
Problem 1. No display after cleaning it. New mother board fixed that
Problem 2. Computer shuts down during gameplay of any games Examples = Minecraft, Arma 2, Grand theft Auto IV. Each of these games will shutdown during a 5-25 minute gameplay session.

I took it to tigerdirect, where they installed a new PSU, that didn't help. i need help i have no idea whats going on. They also ran a 1 hour or 3 hour benchmark on Valley benchmark, they had no problems of it shutting down.

Simple PC specs

CPU = Intel core i7 920 quad 2.66 ghz
GPU = 2 Nvidia GeForce GTS450 1GB each (SLI)
PSU = Brand new 500W thermalTake PSU
Motherboard = I think its a MSI board.. idk the exact specs.
RAM = 8GB DDR3? Don't know the brand or Mhz. Sorry.

If you need full specs or whatever let me know how to get them. running dxdiag or something? I dont know im not too great with computers.

PLEASE HELP ME IVE LOOKED EVERYWHERE!!!!!
 
Solution
I
Okay guys this is the simplest thing ever, i switched keyboards and it hasn't shut off since. was probably a short or something in my old 3-4 year old keyboard..
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Karadjgne

Karadjgne

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Run with just 1 card, see it it shuts down, then run with other. If it doesn't shut down either time, then SR-71 is correct (that's usually a given) and the psu is the culprit. Look for a decent 600-650w replacement, Antec HCG, Rosewill Capstone, XFX, Seasonic mII
 
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hackerk

hackerk

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it may possible that your SMPS (switch mode power supply) is of low power so you should make it stronger and u said that the pc works fine at other place so it may possible that the power supply to your pc at your home is may be the problem.You should try the stabilizer and one other thing there may also have the problem with the cooling of your cpu so you should place one more cpu fan in it and you can also try the software "SPEED FAN" it is free.


try this and reply to it.
 
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Karadjgne

Karadjgne

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Considering that the psu is the single most important component in a pc, I find it very strange that it is so misunderstood. I've seen many a post from people with huge psu's running tiny gpu, just answered one where a guy had insisted on going to buy a RM750 and pairing it with a unpowered gtx750. Why? It's not even difficult to use an online wattage calculator, just multiply the final answer by 1.5 and that's what you need.

I figure 150w for low-end, 200w for mid grade, 250w for unlocked cpu's, 50w for fans/drives, 75w for each pcie used, 75w for 6-pin,150w for 8-pin on gpu. The answer is what I need, plus any headroom for things like prime95, furmark, IBT and still come in right around 80% or so. Not hard, bases are covered, now it's time to pick something quality in that size.
 
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Ian Jans

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thanks for fast response
My processor isn't overclocked. my temps at idle stay around 45C. I've ran GPU Temp monitors and CPU temp monitors and the temps look fine :/
 
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Ian Jans

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how do i check? :/

thanks forfast response by the way
 
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Ian Jans

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What stabilizer? and my cpu temperatures are pretty cool :/
 
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Ian Jans

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what is confusing me though is for a year i ran off of a 460w cooler master, 60 watts less then what i have now with the same GPU, CPU, RAM etc. no problems then...
 
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Ian Jans

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I Don't understand what you're saying, do you mean i need to calculate my computer specs and see what it adds up too or are you saying my psu isn't able to handle my specs?

 
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Ian Jans

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but I ran off a 460W psu for a year before this 500w one.. now that i think of it my computer did shut down with my old motherboard and PSU. but not as often as it does now.
 
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Ian Jans

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Okay guys this is the simplest thing ever, i switched keyboards and it hasn't shut off since. was probably a short or something in my old 3-4 year old keyboard..
 
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Solution
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2ninup

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In that case I'll go with everybody else and say it's probably the PSU. Testing with 1 card is a good idea.

Good luck
 
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2ninup

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Good for you, nice trouble shooting.

 
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Karadjgne

Karadjgne

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To answer Op, by the way I calculate psu's for best performance, running maxed out at @80% (less stress on rails than 100%) you should be running with a decent 550w psu. Not all psus are the same. The 550w is a calculation based on a formula made up by the brand, or even sometimes made up entirely. I've seen a 4-rail 750w psu that had separate rails 1-cpu, 2-pcie, 3-motherboard and accessories, 4-pcie. It had just 18amps on each pcie, combined was just 30amps. That's only 360w, yet the claim was a 750w psu. By equivalence, my Seasonic 520w has 2x 20amp rails combined is 40amps or 480w. The 460w unit you had was probably a very quality psu like mine and had plenty of actual 12v amperage. The Thermaltake you currently own is not. It's very average quality at best. Do try and not max it out, average quality psu's of any size are not built to maintain maximum output for extended periods of time.
 
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matt leep

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I'm having same issue. I'm running triple monitors with bf4. Shuts down after about 5 mins of game play with no bsod. On the other token I can run Furmark 5760x1080 with 8x aa for 20mins with cpu burner running and all temps look normal. While running bf4 I notice cpu temp runs around 65-70c.
Nothing is overclocked. Already changed psu with same outcome. Tempted to setup dual psu to see if the one is getting overloaded but not sure why Furmark would run for 20mins maxed with cpu burner running also with no hiccups.

fx8350
990fxa-ud3 mobo
8gb ram
250 ssd
2x gigabyte r290x 4gb xfire
xion 1000w psu

Running 14.4 amd drivers next going to try 14.7 see if anything changes but i'm doubting it.
 
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Karadjgne

Karadjgne

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I've read numerous posts about AMD driver conflicts, most of which have happened because of either switching from nvidia or upgrading drivers. In both cases, there were 2 ways to fix the issue. First was a total deletion of everything AMD gpu related in the registry, every last scrap of it. Much easier to do with an intel cpu for sure. If that failed, the answer was a full clean install of windows.
The way it seems to be with AMD drivers is they don't always remove or update totally every part, so some keys end up looking for older version numbers, ends up in a dead end forcing a loop and confusing everything, which has the nasty affect of either slowing the gpu down abysmally, or just plain shutting it down.
 
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hackerk

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stabilizer is the kind of psu which stables the power provided to your machine's psu
 
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