PC shuts off while playing games

so I’ve had this problem for over 2 months now, every time I play any intensified 3D game (COD:BO, WOW, Assassin’s creed, etc…) my PC shuts off completely, I’ve ran some tests to see the Heat of my Video card while playing and it only reached about 55-70c, and still I have this problem :S, I’ve checked in every corner around the net and honestly I didn’t find a solution, I’ve updated my drivers and I also checked the ram’s and CPU heats and all turned out to be just fine, so do you guys have any Idea on how to fix this damn problem ?

p.s My Video card is ATI Radeon 5750 Series

Power supply?

Yeah, I had a faulty power supply and it sounds like similar to what was happening to me.

I believe it’s only about 530watts

What CPU are you using? Better yet, tell me about your computer. ALL OF IT.

I think his GPU recommends at least 500 Watts so he’s right on the fringe anyway.

yea sure

here’s my PC spec’s


System Information

Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7600) (7600.win7_gdr.110408-1633)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: P43-ES3G
BIOS: Award Modular BIOS v6.00PG
Processor: Intel® Core™2 Quad CPU Q9400 @ 2.66GHz (4 CPUs), ~2.7GHz
Memory: 4096MB RAM
Available OS Memory: 4094MB RAM
Page File: 1912MB used, 6274MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 32bit Unicode

Hmm… the power supply is enough… but is it faulty? Check your power supply or your house wiring. It might be faulty.

If the power supply isn’t good quality to start with (as in some strange off-brand) you might only be able to get 530w max, not 530 sustained. And yeah, that is almost definitely a PSU issue.

^I agree. running a quad cpu, 4g of mem, 64-bit windows, and a graphics card, you want a little more juice running through your system. lucky for you, that’s about the cheapest part you can buy. at least aim for around 800 to play it safe, more if you’re running 2 cards.

you know what, I do believe it’s either the power supply or the house wiring, but still can’t make sure which IS the actual problem

Well, depending on where you live and if you can get the brand NOX there, they currently have the NOX Urano 650 and 750w models in discount as they are bringing a new model out next month, now I know this is happening all over Europe, no idea about the rest, have a look for it as it´s a rather good PSU that´s quite cheap, I´d say, as good as it gets in value/quality ration for an under 80+ seal psu.

BS.

My system :

i7-2600k
P8p67 deluxe
8Go ddr3r
2x 6950HD
2x 500go storage drive
1x 120go vertex 3 SSD

2 led fans, and 4 normal fans, leds on the case for fan speed control, leds on the motherboard for plugged in stuff status, G15 keyboard, G600 mouse, a heavy joystick with alot of leds … and I’m probably forgeting some.

My PSU is a corsair 650w.

it can be overheating too tho… that’s what happened with my card a while back.

YOU have a corsair. Corsairs are not cheap off-brands, like the OP probably has.

I just had the same problem, it was my CPU fan slighty loose, easy to fix but annoying

If the CPU fan was loose, the cpu would have overheated like hell.

He said he checked the temps, so that’s not the problem. Frankly I would really doubt that there’s an issue with your house’s wiring unless the breaker/GFI trips. Does the PSU have some brand name on it?

Is your CPU temp under load under 70 degrees celcius?

Also try running some test in prime95. We might be able to isolate the GPU out of this.

Just my two cents, it really does seem like a PSU issue, and i don’t know of any brand name PSUs that have a peak output of 530, but I do know of cheap PSUs that have a max output of 530. It could be that your video card isn’t getting enough amperage on the 12v rails, also probably due to the PSU being a cheap brand.

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