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System Rebuild

Last response: in Systems
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April 14, 2012 7:57:30 PM

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=N82E168...

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=N82E168...

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=N82E168...

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=N82E168...

Thanks again in advanced for any help!

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Best solution

a b å Intel
April 14, 2012 8:09:10 PM

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=N82E168...
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=N82E168...

But my first choice would be the XFX.
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April 14, 2012 8:09:14 PM

system requirements for that card are a 500 watt psu with 2 power plugs
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April 14, 2012 9:26:04 PM

Thank you. I'll take your advice and go with the XFX.

Have a good day!
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April 14, 2012 9:27:29 PM

Best answer selected by skribbz14.
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