Power supply quality and 12v rail

Just received a new gtx460 hawk for my LAN system knowing that I needed a better power supply then my generic 420w one.

So I have been looking at either the Antec Earthwatts http://www.playtech.co.nz/afawcs0139235/CATID=534/ID=14355/SID=158550327/productdetails.html

or the Corsair http://www.playtech.co.nz/afawcs0139235/CATID=274/ID=552/SID=160342863/productdetails.html

Also do i need a good 12v rail?

amd athlon II 240 AM3 at 3.2ghz
ASUS M2N68-AM AM2+
4gb dual channel ddr2
500gb 7200rpm HDD (maybe another hard drive later for raid)
DVD drive
gtx 460 hawk (to be overclocked)
3-4 120mm fans
Insert good power supply here

What benefits would I get from a single 12v rail on my system?
And is their a reason why the Antec is cheaper although Its rated 100w higher?

Thanks, any help is appreciated
4 answers Last reply
More about power supply quality rail
  1. Yes
    No benefits.
    The Corsair is a higher quality build.
  2. Delluser is, as usual, correct . . . and a man of few words :)

    Unlike other parts, a poor-quality psu can damage parts of your PC, shorten its lifespan, and in extreme cases . . . worse. PSU failures cause strange symptoms, More than 50% of the hardware problems resolved here are fixed with a new psu.

    The Antec you chose has been around a few years and is well known to us as a very good psu:

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=110

    (You might read at least the first page as well.)

    That Corsair was reviewed even better (as most Corsair units are) when introduced several years ago:

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=62

    Either one is satisfactory, the Corsair is "a higher quality build".
  3. looks like the corsair is a better buy. Thanks for the quick replies.
  4. There is nothing wrong with the Antec, I'd buy it simply because its cheaper. You don't need a 500W+ PSU btw.
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