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Corsair cx400w or Seasonic s12II 430w bronze

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June 20, 2011 10:05:25 AM

which psu should i go for
corsair cx400w or seasonic s12II 430w bronze

System
phenom II x4 955
Asus M4A88T-M
Corsair xms3 ddr3 ram
HD 6850
3 hard drives and 1 optical drive
Case nzxt gamma with 3 120mm fans
a b B Homebuilt system
June 20, 2011 10:41:46 AM

I'd advise a 500W PSU. Corsair do a 500W unit, as do Seasonic. They're as good as each other, but i'd lean over to Corsair, mainly because they've never put a foot wrong with the 4 PSU's i've bought off them.
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a b B Homebuilt system
June 20, 2011 11:35:40 AM

I disagree that he needs a 500W PSU. Either choice of PSU is fine, altho I think I'd go for the Seasonic as it is newer and more efficient.
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a c 122 B Homebuilt system
June 20, 2011 11:39:12 AM

A 6850, at best, needs about 10 amps from the 12 volt rail. Figure another 10 amps for the CPU. That's 240 watts. Figure about 60 watts for the drives and 80 watts for the motherboard and the RAM. Fans - another 10 watts.

A 400 watt PSU would do, but you have no reserve. A 500 watt PSU would be better.
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a b B Homebuilt system
June 20, 2011 1:10:09 PM

jsc said:
A 6850, at best, needs about 10 amps from the 12 volt rail. Figure another 10 amps for the CPU. That's 240 watts. Figure about 60 watts for the drives and 80 watts for the motherboard and the RAM. Fans - another 10 watts.

A 400 watt PSU would do, but you have no reserve. A 500 watt PSU would be better.


Thanks for saving me a post :) .
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June 20, 2011 3:22:32 PM

What about corsair 450vx
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Best solution

a b B Homebuilt system
June 20, 2011 4:56:18 PM

I cannot imagine a build with a 6850 using 380 watts on a regular basis, if ever.

Here's why:
http://www.guru3d.com/article/radeon-hd-6850-6870-cross...
http://www.bit-tech.net/hardware/graphics/2010/10/22/at...
http://www.anandtech.com/show/3987/amds-radeon-6870-685...
http://techreport.com/articles.x/19844/15
The highest power consumption figure that these show is 290W at the wall.
All of those systems use very power hungry i7-900 series processors and three of them use i7-965s. Which as far as I'm aware are more power hungry than an AMD Phenom II X4 955.
http://www.anandtech.com/show/2754/15
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June 20, 2011 5:41:17 PM

Best answer selected by razer_76.
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June 20, 2011 5:42:13 PM

Thanks silvune
will be going with seasonic s12II 430w
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