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Do i have enough power?

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  • Power Supplies
  • Corsair Dominator
  • Power
  • Components
Last response: in Components
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October 20, 2011 2:56:42 PM

Im looking to upgrade my system and Im not sure whether or not I need to buy a new power supply. Right now I have a tx650. The new system would be a i7-2600k in a gigabyte z68 ud5, 8gb corsair dominator and a 580gtx. It would also be running about 8 120mm fans (corsair h100 push pull). Id also like to have enough room to overclock. Most of the power supply calculators out there tell me Ill need about 900w. That just seems high to me. Any thoughts?

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a b ) Power supply
October 20, 2011 3:05:37 PM

Well, GTX580 pulls max 250W i believe, with 95W for the i7 leaves you 305W, plenty of headroom for the rest of your system.
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October 20, 2011 3:13:32 PM

What about the H100 pump and the other fans? Any idea what they would be using?
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a b ) Power supply
October 20, 2011 3:13:37 PM

corsairs a good make your tx650 will most likely run that ok
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a b ) Power supply
October 20, 2011 3:18:02 PM

erenas4 said:
What about the H100 pump and the other fans? Any idea what they would be using?


dont know about the pump but the two fans on the radiator fans are 4w each
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a b ) Power supply
October 20, 2011 3:19:12 PM

650w I believe is the recommended for a GTX 580 so you should be fine, over-clocking included :) 

As said above, Corsair is a solid manufacturer so I wouldn't expect any issues :) 

900w-1000w is recommended for SLI 580's.
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a c 275 ) Power supply
October 20, 2011 3:20:20 PM

Good to go with a Corsair TX650w.
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October 20, 2011 3:20:51 PM

Thanks for the quick replys guys. One more question.
Is there anyway to test how much power its using? Other than just adding up the listed max wattage?
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a b ) Power supply
October 20, 2011 3:20:58 PM

like i said, you have plenty of headroom for everything else in there. If that H100 uses more than 120W i would be very surprised.
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a c 275 ) Power supply
October 20, 2011 3:24:58 PM

erenas4 said:
Thanks for the quick replys guys. One more question.
Is there anyway to test how much power its using? Other than just adding up the listed max wattage?

Buy a Kill A Watt EZ the Egg and plenty of places sell them.
http://www.p3international.com/products/p4460.html
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a b ) Power supply
October 20, 2011 3:26:21 PM

erenas4 said:
Thanks for the quick replys guys. One more question.
Is there anyway to test how much power its using? Other than just adding up the listed max wattage?


only other way is once its all put together you can use a watt meter to measure the power draw
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October 23, 2011 9:01:48 PM

Best answer selected by erenas4.
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a b ) Power supply
October 23, 2011 9:24:24 PM

This topic has been closed by Mousemonkey
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