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Quick! is this PSU good enough for sli gtx 570's and an oc'd 17 2600k?

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January 23, 2012 7:44:25 PM

here is the psu:

http://www.tigerdirect.com/applications/SearchTools/ite...

now, i will be using two evga superclocked gtx 570's (@ 797 Mhz) and the i7 2600k, hopefully oc'd. how much room do i have to OC running these two gpus and the cpu? (i7 stock= 3.4 Ghz) i was hoping to push it to at least 4?

can i have suggestions? i am on a budget so the cheaper the better, and im not sure the limit of the psu's cost (sorry :/ 
January 23, 2012 8:22:51 PM

Yes, but I would not use a cooler master power supply. 1000w is probably a bit overkill, but maybe a good number to stay at with overclocking both cards and the CPU.

http://www.newegg.com/Product/Product.aspx?Item=N82E168... would be a good one, or anything by Seasonic.
http://www.tomshardware.com/reviews/power-supply-oem-ma... is a great place to compare your power supply and see who actually makes it.
Seasonic and Delta are 2 of the very best, so I stick with PSU's they made. GL
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January 23, 2012 8:38:20 PM

using this: http://extreme.outervision.com/PSUEngine

i came to 791, and i oc'd to 4000, it'd be really helpful if someone more knowledgeable with this stuff...

heres the rest of the rig if anyone would even be willing

COOLING: http://www.tigerdirect.com/applications/SearchTools/ite...

GPU: (x2) http://www.tigerdirect.com/applications/SearchTools/ite...

CPU: http://www.tigerdirect.com/applications/SearchTools/ite...
on the calc you have the OC option, wasnt sure what to set it to

RAM: http://www.tigerdirect.com/applications/SearchTools/ite...

HDD: http://www.tigerdirect.com/applications/SearchTools/ite...

MOTHERBOARD: http://www.tigerdirect.com/applications/SearchTools/ite...

OPTICAL DRIVE: http://www.tigerdirect.com/applications/SearchTools/ite...

and then a 200mm blue led fan, 2 120 mm non leds and a 140mm led fan

if someone were to do this, they would be my hero lol
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January 23, 2012 8:55:26 PM

When I input everything in your system into the calculator, it tells me 858 min,908 recommended.
As to what to set the OC option to, just going to 4.0, you shouldn't need to change the voltage to the CPU at all, so you just put in the 1.25 it shows you, along with the speed you want it to be(4000 in this case).
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January 23, 2012 8:58:26 PM

where did the extra jump of 67 come? comparing to my first try that is
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January 23, 2012 8:59:36 PM

Did you enter your H70 cooler ? I also entered the 200mm fan as a 250, as it doesnt have a 200mm option.
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January 23, 2012 9:19:11 PM

yes i entered the h70 cooler but not the 250mm fan, but i doubt a single fan uses 67 watts,

there's no ssd, just the one hdd( i chose high rpm),

the 2 570s, -> video type-sli

the oc'd 2600k @ 4000,

2 120mm fans one 140mm (led) and one 250mm (led) ,

the motherboard i chose high end desktop.

2 sticks of ddr3 sdram,

1 dvd rw/ dvd +rw

h70 cooler

and nothing else. should there have been more entered into the calc, because with all that i only have 765 for reccommended......... ??

how do i put a picture into this so you can see what i entered?
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January 23, 2012 9:32:45 PM

Lennon95 said:
yes i entered the h70 cooler but not the 250mm fan, but i doubt a single fan uses 67 watts,

there's no ssd, just the one hdd( i chose high rpm),

the 2 570s, -> video type-sli

the oc'd 2600k @ 4000,

2 120mm fans one 140mm (led) and one 250mm (led) ,

the motherboard i chose high end desktop.

2 sticks of ddr3 sdram,

1 dvd rw/ dvd +rw

h70 cooler

and nothing else. should there have been more entered into the calc, because with all that i only have 765 for reccommended......... ??


I found the difference I think, the capacitor aging was at 40 for some reason.




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January 23, 2012 9:38:17 PM

lol so am i safe with an 850w? that seems kind of hard to believe, but i've looked around on the interweb (lol) and found this: http://www.guru3d.com/article/geforce-gtx-570-sli-revie...

can i trust this? i had originally planned to go with an 850 watt, but didnt know what to choose, as i am on a budget, and the psu is extremely important, and gives me a little anxiety since my last one failed me....
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a b B Homebuilt system
January 23, 2012 9:54:25 PM

The Silent Pros are CM's highest quality line, you'd have no problem with it:

http://www.jonnyguru.com/modules.php?name=NDReviews&op=...

Ripple suppression at the high end is not as good as it could be, but it's still ok and you won't reach the high end on that kind of setup.

EDIT: you'd be fine with a high quality 850w PSU.

EDIT2: I wouldn't worry about fans, an intolerably loud 120mmx25mm doesn't even draw 10w.
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January 23, 2012 10:25:12 PM

You should easily be safe with a solid 850w model - I run 2600k at 4.5, and 2 SLI'd 580gtx and never get that high in power draw.
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a b B Homebuilt system
January 23, 2012 10:28:10 PM

Yep, HardwareSecrets even pulled 895w DC from it before it quit:
http://www.hardwaresecrets.com/article/Cooler-Master-Si...
And it ended up with a Gold award from them, and keeps its ripple in spec all the way to max output.
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January 23, 2012 10:40:05 PM

Best answer selected by lennon95.
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January 23, 2012 10:40:12 PM

thanks much for all the help!!!
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January 23, 2012 11:29:29 PM

This topic has been closed by Mousemonkey
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