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Coolermaster Silent Pro 700W (Strees + Burning)

post #1 of 16
Thread Starter 
Iv'e ran the Extreme Burn-In (FurMark) on my GTX480, whilst overvolted and OCed + my Phenom X6 @ 4.0GHz running Prime95 and the Watt Meter that I have my Computer plugged in showed that it was pulling around 810 Watts, than for a slight second, there was this smell of circutry burning, so I quickly stopped the strees tests and it went back to 135 watts...

Why didn't my PSU cut the power when it went over it's limit?
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post #2 of 16
It is a cheaper PSU. I got their 550w version that came with a cheap case. Works for what it is, but I wouldn't trust it for huge loads. But seriously? 810w draw? That seems a lot for just a single GPU + system.
   
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post #3 of 16
Thread Starter 
Quote:
Originally Posted by Wildcard36qs View Post
It is a cheaper PSU. I got their 550w version that came with a cheap case. Works for what it is, but I wouldn't trust it for huge loads. But seriously? 810w draw? That seems a lot for just a single GPU + system.
Yeah, had 1 SSD running at the time and 3 hardrives too, and about 8 fans...

It also has the 80% efficency thingy too I think.... Looks like I may need to upgrade this PSU...

but that large power draw does seem to be of a concern to me, especially using a single GTX480....

Mehhhh *cries*
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post #4 of 16
Well consider that during normal operation you will never get near Furmark + Prime95 usage. Plus if the wall meter showed 810 watts, that doesn't mean that the PSU is using 810 watts. If your PSU has 80%, then it was actually using 810 * 0.8 = 696 W, pretty much on the limit of the 700w.
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post #5 of 16
I believe that the Silent Pro 700W is overrated as well, it's more like a 650 or even a 600W PSU. If you check the sticker I think it can do 600W on the 12V rail so you would have probably been pushing it past capacity if showing 810W from the wall.
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post #6 of 16
Keep in mind that the watt meter only tells you what the PSU draws from the wall. The PSU could be 50% efficient for all we know. It's likely around 70-80% though.
post #7 of 16
Thread Starter 
It's a 80+ thing whatever it is I think
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post #8 of 16
So it was right around capacity if you multiply AC usage by the 80% efficiency number.

Most unit's OCP circuit doesn't cut out until you go over the rated wattage by a bit, some are regulated more tighter than others in this regard ... some are unfortunately not rated tightly enough to avoid possible damage to the PSU ... although I'd be a little surprised if a CM unit was of THAT poor of quality (except maybe an 'Extreme' Power unit).

That is a pretty astonishing amount of power usage for a system w/one gfx card though I must admit. I would avoid running both those stress tests at the same time until you get yourself a bit stronger PSU. Normal usage I'm sure you'll never see anywhere near that kind of draw.
Edited by brettjv - 5/28/11 at 9:14am
    
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post #9 of 16
Thread Starter 
Yeah, I will avoid using both strees programs next time, I only did it just to see how much power it would pull from the wall... I'm still quite surprised myself, a bit disapointed too in a way...

It never uses that amount of power in everyday usage though, my computer pulls around 300ish Watts whilst I'm playing games, which isin't too bad, it idles at 135 watts too.

Anyways, cheers for the help, I will have to upgrade my PSU towards the end of this year when I will hopefully upgrade to the new FX CPU.... dought I will though.
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post #10 of 16
i have no idea how you managed to pull 810watts (700watts or w/e the calculation was)
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