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Sufficient enough PSU

Last response: in Components
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February 20, 2013 11:19:13 PM

Hello,
I recently purchased parts that are on the way, and have started to get concerned that my psu is cutting it close.

My PSU: nzxt hale 90 750w
Relevant factors:
I7 3770k hopefully ocd to 4.6ghz
Swiftech h220 when it releases
5 additional 140mm case fans
2 gtx 670s SLI
Some LEDs for craps
1 tb 7200 rpm hdd
120gb ssd
DVD write/read

Is the 750w cutting it too close? Will it permit over clocking?
Thank you

More about : sufficient psu

a b ) Power supply
February 20, 2013 11:32:22 PM

Nah, that's a good power supply, so you'll be fine.

If it were a cheap 750w, then you might be in trouble, but NZXT is reliable.
February 20, 2013 11:37:10 PM

i think you're safe
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a c 122 ) Power supply
February 20, 2013 11:41:35 PM
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nVidia itself recommend 500W for a single 670.
http://www.nvidia.in/object/geforce-gtx-670-in.html#pdp...


For testing conducted for SLI 670, the resulting system consumption for SLI is 433W of which 293W are attributed to the gpu cards.
http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa...


If you use this psu calculator considering your components, the result is 564W (overclocked processor & used 680x2 to simulate gpu OC:
http://extreme.outervision.com/PSUEngine


All points out to 750W being more than enough.
February 21, 2013 1:05:33 AM

thanks a lot guys, i figured it would be okay, esp it being a quality psu. I just tend to worry at the end out of excitement =P

February 21, 2013 1:05:42 AM

Best answer selected by dakotaritz.
a c 122 ) Power supply
February 21, 2013 1:06:29 AM

No problem.Your welcome.
!