PC Shuts Off w/out Warning

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Aidan Johnston

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Jul 25, 2013
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My apologies if this should be posted somewhere else. If so, just tell me where!

So I have had my PC for three years or so now. It used to happen while playing Halo 2, but now my problem has spread to GTA 4, Skyrim, and any other graphically taxing game. When I play, for various amounts of time, my computer just shuts off. It goes black, then reboots by itself. I had previously thought it was my lack of CPU cooling, so I underclocked and went on my way for all these years. I just bought a Corsair H60 water cooling unit and installed it properly. My processer now runs at 30C in BIOS, 45-50C in Windows, and 55-60C while playing games like Borderlands 2. I THINK these temperatures are okay. Since I bought the cooling I have reset my BIOS to run regularly. My computer has begun to shut off mid-game again. Any thoughts would be much appreciated.

In short: My PC shuts off mid-game without warning.

I will upload any additional requested information; however, I'm a newb. Just tell me how to find it!


Windows 7 (x64) Ultimate
Asus P6X58D-E
4GB Ram
intel i7 930 w/Corsair H60
ATI Radeon 5700
Thermaltake TR2 RX-750AH3CH 750W PSU
 
Solution
ekagori
A pc shutting down out of the blue while gaming is a common symptom of a PSU that is failing. It cannot deliver the amount of power required by the system and thus the pc shuts down to prevent damage. Since your cpu and gpu are not showing unusually high temperatures, or there is no weird artifacts or tearing on your screen before it shuts down, we can rule out both components. A bad motherboard would most likely not turn on, much less go through POST, so you can most likely, rule that out as well, and RAM usually causes BSOD's and not black screens with a shut down.
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BrushesTeethOnlyWhenGoingOut

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Jul 23, 2013
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check if all ur plugs are plugged into ur mobo correctly. I had an issue a while ago where my pc would shut down while under load because my atx cable was loose. 60c under load is fine, i wouldn't worry about it. It sounds like your psu is crapping out. borrow a friends psu and test it out.

whats your gpu temp under load? do you get weird artifacts or a colored screen right before your pc shuts down?
 
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ekagori

ekagori

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Feb 9, 2013
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http://www.hardwaresecrets.com/article/Thermaltake-TR2-RX-750-W-Power-Supply-Review/902/9
I was reading up a review of your PSU and as stated in the conclusion, it's a "flawed product that should be avoided at all costs". According to the review, it cannot deliver its full 750W, so you must be overloading it while gaming. I highly recommend you change it before it goes out for real and takes more of your pc components with it. As I stated in my last post, try to test it out with another PSU to make sure that it is in fact the problem. Either way, I would think seriously about replacing your PSU anyway.
 
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Aidan Johnston

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Jul 25, 2013
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Okay, So I do not have another power supply to test it with. I do not have a colored screen, it just powers off (or rather resets) immediately. What makes you think it is the PSU?
 
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ekagori

ekagori

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Feb 9, 2013
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A pc shutting down out of the blue while gaming is a common symptom of a PSU that is failing. It cannot deliver the amount of power required by the system and thus the pc shuts down to prevent damage. Since your cpu and gpu are not showing unusually high temperatures, or there is no weird artifacts or tearing on your screen before it shuts down, we can rule out both components. A bad motherboard would most likely not turn on, much less go through POST, so you can most likely, rule that out as well, and RAM usually causes BSOD's and not black screens with a shut down.
 
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Solution
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Aidan Johnston

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Jul 25, 2013
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Thank you for the detailed description. It was very helpful. I would also like to add that I ran both the Intel Burn Test and Furmark 1.10.0 at the same time. My CPU did not exceed 71C and my GPU did not exceed 64C.

Would anyone be able to recommend an economic PSU that will not fail on me and continue to work in the long run?
 
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bignastyid

bignastyid

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ekagori

ekagori

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Feb 9, 2013
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These two would be sufficient for your needs:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207022&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

They're both on sale right now, I prefer xfx since it's a seasonic unit, good price and solid build.

Don't forget to select best answer :D
 
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Aidan Johnston

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Jul 25, 2013
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Its the ATI Radeon HD 5700.

Thank you everyone! I will be buying a new PSU VERY soon. :D

 
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