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Corsair HX 850 w 70amp single rail enough for 2 gtx 580's

post #1 of 27
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Hi guys i upgrade my current psu for a new brand corsair hx 850w. It has a single rail (70amp) andi also bougth a barely used gtx 580 for an stupid price i could not resists.. I know my thermaltake will pop with 2 gtx 580's but will my new corsair psu handle my whole oced rig?
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post #2 of 27
according to this the GTX 580 consumes 363 watts under full load. Or 726 watts for two. That gives you about 100 watts leway for your rig. Looks like you'd be pushing it. Might need to get a 1000 watt.

EDIT:

try this http://www.overclock.net/t/1140534/psu-calc-final-release
Edited by Jaggar - 5/15/12 at 11:08pm
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post #3 of 27
You will be fine man! With your whole rigged overclocked you prolly wont be pulling more then 650-700 watts from the all
post #4 of 27
A gtx 580 worst case numbers consume about 280-290 watts , so about 580 for sli. add another 200 watts or so for an OCed cpu (typical usage though is 150-180) which leaves about ~75-120 watts for the rest the system

More then likely you should be fine system under normal usage probably at most use around 750 watts.
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post #5 of 27
Yes.
post #6 of 27
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post #7 of 27
I do believe so, yes.
 
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post #8 of 27
Quote:
Originally Posted by Jaggar View Post

according to this the GTX 580 consumes 363 watts under full load. Or 726 watts for two. That gives you about 100 watts leway for your rig. Looks like you'd be pushing it. Might need to get a 1000 watt.
EDIT:
try this http://www.overclock.net/t/1140534/psu-calc-final-release

u serious bro?
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post #9 of 27
Thread Starter 
Thanks..
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Hard DriveHard DriveOptical DriveCooling
OCZ vertex 3 240gb  Samsung 1tb MSI Multi rDVD/rCD Custom Watercooling Loop, mostly XSPC 
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Yukss´s rig
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i7 3820@4.75ghz HT on 1.35v EVGA X79 FTW Asus gtx 680 XSPC raystorm H2O 16gb Corsair Vengance 
Hard DriveHard DriveOptical DriveCooling
OCZ vertex 3 240gb  Samsung 1tb MSI Multi rDVD/rCD Custom Watercooling Loop, mostly XSPC 
OSMonitorKeyboardPower
Windows 7 64bit Samsung 27" 2ms 1920*1080 Logitech G15 Corsair HX 850w 
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post #10 of 27
Quote:
Originally Posted by Jaggar View Post

this is completely inaccurate then? http://www.bit-tech.net/hardware/graphics/2010/11/09/nvidia-geforce-gtx-580-review/8

a 580 doesnt pull anywhere near 360w at full load lol. not even overclocked as high as it will go on air.
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