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How much power supply would I need?

Last response: in Systems
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August 1, 2012 4:29:10 PM

I'm building my first PC here are some specs you may need to know -

Mother Board - Rampage IV Extreme - Extended ATX

CPU - 3820

Graphic Card - Still debating to either crossfire 7950s or get one 7970

Drive - DVD R / RW

Hard Drive - Seagate Momentus XT 750GB 7200RPM 32MB Cache 2.5" Solid State Hybrid Drive

Liquid Cooling - Corsair H100

More about : power supply

August 1, 2012 4:32:17 PM

750 watts would be enough to over clock my cpu and gup?

I would like to keep my future upgrade options open :) 
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August 1, 2012 4:34:22 PM

yea, 750 will provide enough juice.
August 1, 2012 4:39:20 PM

thank you very much :)  very helpful now I can affird to crossfire two 7970s .. I was gonna buy a 1200W power supply thinking I was gonna over clock GPUs and CPU and stuff it might need a lot of juice
August 1, 2012 4:40:35 PM

1200watt is over kill by alot.
a c 81 B Homebuilt system
a c 254 ) Power supply
August 1, 2012 5:29:51 PM

Here is the complete list of manufacturer recommended power requirements for systems with pretty much every graphics card configurations you can think of.

http://www.realhardtechx.com/index_archivos/Page362.htm

Remember this is for the whole system and the list assumes a "generic" power supply. If you get a high quality power supply you are generally fine with a bit less than the list says. High quality brands include Corsair, Seasonic, PC Power and Cooling, XFX, Silverstone, Enermax, OCZ and Antec.
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