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Choosing Power Supply

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January 4, 2011 9:38:35 PM

Hello,

I pretend to buy the following build and i don't know to either get a Corsair CMPSU-650HX or 750HX, and maybe even 650 will be too much, don't really know much about power suppliers. I'm also in doubt about getting TX or HX version.

Case: Cooler Master CM 690 II Advanced,

Intel i5-760,

Two Radeon HD5770 Sapphire Vapor-X,

Motherboard: ASUS P7P55D-E Pro,

RAM: 2x G.SKILL Ripjaws Series 4GB,

And some Hard Drives i already have.

Major functions are gaming and music production.

By the way, would you change anything in this build?

Thank you very much.

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a c 135 ) Power supply
January 4, 2011 9:57:06 PM

1. I wouldn't buy an 1156 based system at this time w/ 1155 breaking any day now. I'd be waiting for their release and buying a Asus Sabertooth P67 w/ a Core i5-2500K.

2. I wouldn't buy the 5770, I'd get the 460.

$140 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

3. The GSkill's were a good option when they were cheaper than the more established brands....now they aren't.....

These Mushikins and OCZ are $70 for CAS 7
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

CAS 9 Corsair's are at $50
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

If overclocking and you anticipate using two GFX cards in SLI / X-Fire at some point, I'd go w/ a Corsair TX750 or Antec Earthwatts 750. With overclocking, I'd move to a Corsair HX750..... or XFX-Black Edition 850 or Antec CP-850* both of which are cheaper thn the HX750

* requires compatible ANtec case

With just one card, I'd get a 650 watter Antec EA or Corsair TX ... you could get away with a 550 watter but generally ya don't save any money .... yesterday EA-650 for example was $50.
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January 4, 2011 11:52:51 PM

I think 650W should be okay. Of course it does not hurt to have a bit more just in case you decide to add something else to your computer.
January 4, 2011 11:58:32 PM

Im gonna second what jack said. Why on earth would you be bying 1156 when 1155 should be out any day now? Its not going to cost you any more to put a system together on 1155 than it would on 1156.

I also agree with the psu choices.
January 5, 2011 10:49:56 AM

First of all, i really appreciate everyone's extremely helpful and quick response.

About the 1155, you are absolutely right, i was forgetting that, and because i'm not much in a hurry i'm certainly going to wait.

One important decision is about the gpu, i was only going to get two radeon hd5770 because i aready have one, so unless it is a big difference between them and the 460, i would keep my other radeon. What do you think it's better?

Actually those GSkill's were recommended here in the forum but since the one's you talked about also look good and they're cheaper, i'll consider buying those instead.

And because i'm thinking about using two cards and maybe some OC, i'll have to decide between a Corsair HX750 or a XFX-Black Edition 850, which shouldn't be much of a pain.

Once again, thank you everyone.
!