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Started by Corey Strohecker | | 13 answers
Is it the PSU's fault?
I have an Apevia ATX-CB700W
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And my specs:
CPU: AMD FX-8350
GPU: Sapphire 290 TRI-X OC
MoBo: Gigabyte 990FXA AM3+
HDD: Seagate Barracuda 1TB
RAM: Corsair XMS3 2x4GB 1333

My problem is when I am gaming. My 290's clock is the default TRI-X's and I can play games such as Star Citizen and Crysis 2 and benchmarks such as Unigine Heaven/Valley or Furmark for a few minutes and then there is a buzzing noise from my speakers and at the same time the system blackscreens. After I change the clock down to 947, the same thing happens. I can only run the games I play while at 880ish MHz clock speeds. My GPU isn't overheating, because it never gets past 75 Celsius. It's not the CPU, because I can run Prime95 for and hour with no problems. It's not the HDD because I have ran chkdsk and found no problems. I am at a loss here and would really appreciate some help along with any PSU recommendations if that is the problem(preferably 750w 80+).

Thanks in advance
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October 17, 2014 5:36:29 AM

ganjaker said:
so it was the psu?


I'm pretty sure it is now, it was only 40$, so I'm not losing much.
October 17, 2014 4:31:20 AM

so it was the psu?
a c 94 ) Power supply
a c 88 à CPUs
October 16, 2014 5:49:59 PM

That's a good PSU. Should treat you fine.
October 16, 2014 1:24:21 PM

Im thinking of getting the EVGA 750w
a c 80 ) Power supply
a c 266 à CPUs
October 16, 2014 8:26:48 AM

It's not really about how many rails the PSU has, but rather the quality, which's fundamental to the functioning, wattage wise its fine, but wait, where did amps go? And, no over-current protection, no ripple protection, cheap caps which fail on high loads (even on low), zero voltage regulation, no over-temp protection, I don't see how the PSU is not the issue in this high end build.
a c 94 ) Power supply
a c 88 à CPUs
October 16, 2014 7:48:59 AM

What makes you say that? It has a voltage select switch and it doesn't list how much power is available on the different rails.
October 16, 2014 7:25:49 AM

this model is no junk .Are u oc right now?
a c 94 ) Power supply
a c 88 à CPUs
October 16, 2014 7:19:00 AM

I would get a 550-600W depending on PSU. You'll need to adjust for your OCing desires. Same if you want to CF. The first reply listed some good PSUs that will allow for OCing as well.
October 16, 2014 7:00:28 AM

4745454b said:
That PSU is junk. Any quality 600W Unit will run that system just fine. Look for something from Antec, Corsair, Seasonic, XFX, etc. Avoid anything with that little red voltage select switch in the back, or ones that like yours don't list any 12V total output numbers.


I'm thinkning of overclocking my gpu and cpu a little, Im not sure if 600 will be enough.But, I did get a bad psu in the first place, so I don't know. :D 

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