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Power Supply not enough?

Last response: in Systems
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December 24, 2012 5:07:40 AM

Thanks to Black Friday, I managed to put together a system, but recently I've found that my computer just suddenly loses display. I had this problem a while back with my old system, thought PSU wasn't enough and turns out I was right. It mostly happens right when I open either a YouTube video or start a game. Last time I had this display problem it happened during Windows Index Rating and when I looked at certain areas in games (I'd assume the more "intense" areas). Before I had a computer with a stronger PSU available, now I do not. So I have no way of testing if it indeed is the power supply. It would be much appreciated if someone could tell me why I'm just suddenly losing display.
(I wish I could give more on the problem, can't connect to my computer or re-establish the display without restarting)

My build:
Power Supply - Corsair CX 500W - www.newegg.com/Product/Product.aspx?Item=N82E1681713902...
CPU - AMD FX-8120 - www.newegg.com/Product/Product.aspx?Item=N82E1681910396...
Motherboard - MSI 970A-G46 - www.newegg.com/Product/Product.aspx?Item=N82E1681313063...
GPU - Galaxy GTX 460 768MB - www.newegg.com/Product/Product.aspx?Item=N82E1681416205...
Memory - G. Skills 1866 DDR3 8gb (2x4gb) - www.newegg.com/Product/Product.aspx?Item=N82E1682023146...

SSD - OCZ Synapse Cache - www.newegg.com/Product/Product.aspx?Item=N82E1682022793... (Don't think this would be the problem..)
HDD - Seagate 3Tb - www.newegg.com/Product/Product.aspx?Item=N82E1682214884...

And the case (Corsair 550D - www.newegg.com/Product/Product.aspx?Item=N82E1681113901...) comes with 3 fans and I'm currently using two of them (I got a connector to give power to the third one, but after that this problem started happening, I unplugged the third one but I still experience the display crashes just as frequent).

Thank you for your help!

Edit: Using this CPU HSF - Arctic Freezer 7 - www.newegg.com/Product/Product.aspx?Item=N82E1683518613...

More about : power supply

a b B Homebuilt system
a b ) Power supply
December 24, 2012 5:19:24 AM

Well it's possible that your GPU has some issues or possibly your mobo, but I would suspect that your GPU is possibly at fault. Is this GPU common to both builds?
December 24, 2012 5:22:06 AM

lunyone said:
Well it's possible that your GPU has some issues or possibly your mobo, but I would suspect that your GPU is possibly at fault. Is this GPU common to both builds?

Yea it is
Related resources
a b B Homebuilt system
a b ) Power supply
December 24, 2012 5:31:53 AM

So if you just use desktop applications and not anything video specific, your system is fine?
December 24, 2012 5:52:31 AM

Mhm. And it never even started happening until I added another fan.. Took out the fan and it continued. This is all through cables in the back of the case, so I didn't touch anything :) 
a b B Homebuilt system
a b ) Power supply
December 24, 2012 7:46:05 AM

So let me get this straight:

New Build has:
* New CPU, Mobo, RAM, SSD & PSU

Brought over to new build:
* HD, GPU, & DVD

If this is true than there would be 2 things I would consider possible issues.

* Mobo is flaky and not working right (not stable, especially after adding in case fan)
* GPU is flaky and this is why you have the same issue from previous build, if I understood this correctly.

You might want to run Memtest86 on your RAM sticks and verify that they don't have any issues. Also if you can get Prime95 to run, then I would run it for at least a few hours to see if you have any other issues.

It's also possible that your PSU isn't doing its job, but its unlikely the case since it's a new PSU and is of pretty good quality. This doesn't mean that it's 100% signed off as a good part, but it's something to keep on the list of possible bad parts.

Links:
Memtest86
Prime95
!