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System Rebuild

I am about to rebuild my system and have a new processor, mobo and graphics card picked out. I don't really know how to check if my current power supply I am using will be compatible.

These are my new parts:

ASRock Z68 Extreme3 Gen3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157271

XFX HD-679X-ZRFC Radeon HD 6790 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150564

Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 3000 BX80623I52500K
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072

and this is my old power supply I am hoping to continue using:

CORSAIR Builder Series CX430 CMPSU-430CX 430W ATX12V Active PFC Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139017&RandomID=360795012914819120120414125234

Thanks again in advanced for any help!
4 answers Last reply Best Answer
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  1. Best answer
    You will need a more powerful PSU.

    A 6970 needs about 17 amps, peaking to 21 amps under load. Your CPU will need about 10 amps. And that doesn't include the rest of your system.

    A CX430, while a pretty good power supply, only has a 28 amp 12 volt rail.

    I would recommend something like an XFX 550 watt PSU:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013
    a little pricey for a 550, but a great power supply and built by Seasonic.

    Or one of these:
    Corsair CX600
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028

    But my first choice would be the XFX.
  2. system requirements for that card are a 500 watt psu with 2 power plugs
  3. Thank you. I'll take your advice and go with the XFX.

    Have a good day!
  4. Best answer selected by skribbz14.
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