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GTX580 3way-SLi on an HX1000... Suicide Runs??

post #1 of 13
Thread Starter 
Thought I'd start a thread for two reasons:
1) People want to know how much power GTX 580's in a multi-gpu setup really consume, and
2) Which power supply will do said job.

All games/benchmarks were run with my sig rig and GTX 580 clocks are 800|1600|1002.

Here are my results after having tested 7 games/benchmarks with my rig and a Kill-A-Watt:

Dirt 2 = 915W Max, ~ 750W Avg
FarCry2 = 935W Max, ~ 750W Avg
Heaven 2.5 = 933W Max, ~ 840W Avg
Metro2033 = 980W Max, ~ 850W Avg
Crysis 2 = 971W Max, ~ 925W Avg
AvP = 996W Max, ~ 965W Avg
BF BC2 = 1033W Max, ~1005W Avg

12v rail reading in HWmonitor never went below 11.88v.

I'm thoroughly impressed, even if this is only temporary (which it is), I can't believe it's handling 3 of these beasts with a slight oc and the rest of my system so well.

I've read that the HX1000 may (or may not) be an underrated 1500W psu that is labelled as 1000W for efficiency reasons and either it's true or I'm lucky so far.

This thing doesn't get warm, make noise, shut down or anything with the exception of kicking butt.
 
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post #2 of 13
Why would you be surprised that a 1000W power supply can supply 1000W?
post #3 of 13
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post
Why would you be surprised that a 1000W power supply can supply 1000W?
Perhaps my thinking on this issue was distorted. Seems like most people are very hesitant to push a psu to full-on 100% load or thereabouts. Whether it can take on more than that, who knows, but I was a little worried that it wouldn't work out so well.

Perhaps my excitement is over nothing, but I had been wondering over the last couple days if I was truly straining my HX1000 or not. I mean, all you seem to hear about is 80/90+ gold or silver and, while I understand the luxury of headroom, it seemed like everyone thought this setup was doomed for failure.
 
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post #4 of 13
Well, it just puts a lot of demand on the PSU, main reason people hesitate doing that sort of setup. Last thing anyone wants is an unexpected PSU failure. Not saying that happens in cases like these, I'm aware of the amount of over engineering that goes into some of these high end units, it's more an issue of what you're comfortable trying.

Plus after the bullcrap some PSU manufactures pull, I think some people, myself included, are wary of coming to close to the spec'd limits of their power.
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by [\\/]Paris View Post
Well, it just puts a lot of demand on the PSU, main reason people hesitate doing that sort of setup. Last thing anyone wants is an unexpected PSU failure. Not saying that happens in cases like these, I'm aware of the amount of over engineering that goes into some of these high end units, it's more an issue of what you're comfortable trying.

Plus after the bullcrap some PSU manufactures pull, I think some people, myself included, are wary of coming to close to the spec'd limits of their power.
Yeah, that's why this is just temporary. I was a bit worried, yet excited that I hadn't had any issues.
 
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post #6 of 13
Wow Bfbc2 really eats up the juice. 1005 avg.
Nice rig.
Edited by Munchkinpuncher - 4/14/11 at 4:59pm
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post #7 of 13
I'm actually kind of curious how much juice my GTX560/260 setup uses. There aren't that many games the utilize physx enough to cap out the 260...
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by Munchkinpuncher View Post
Wow Bfbc2 really eats up the juice. 1005 avg.
Nice rig.
Yes, it does! But I should note that I can manage to limit power consumption with Vsync enabled. Those tests were with Vsync disabled.

Thanks!
 
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Phenom II x4 955 @ 3.6Ghz MSI K9N2 SLI Platinum 2x 9600gt 1GB in SLI 2x 2GB Corsair Dominator 1066Mhz 
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WD Caviar Blue 250GB 2x LiteOn DVD-RW Windows 7 Ultimate x64 HannsG Hi221D 22" 1680 x 1050 
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PS/2 Antec Earthwatts 650w Antec 900 Optical 
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post #9 of 13
If you are drawing 1000 watts from the wall you are likely only putting about 800-900 watts through the power supply.
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post #10 of 13
1000w on kil-a-watt= ~850w dc output. (asuming 85% efficency)

seems pretty good for 3 580s
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Overclock.net › Forums › Components › Power Supplies › GTX580 3way-SLi on an HX1000... Suicide Runs??