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Need a little help between 2 power supplies!

Last response: in Components
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October 8, 2009 9:06:04 PM

Alright guys, looking for a little help, I am wanting to choose between these two power supplies,

http://www.tigerdirect.com/applications/SearchTools/ite...

http://www.tigerdirect.com/applications/SearchTools/ite...

please help, i am going to get an ati hd5850 card, possibly crossfire 2 of them, which one would be better, My rig is an x58 chipset, i7-920 processor, 6x1gb ddr3 1333mhz, 1 hardrive, current gpu is ati 4850 512mb.

More about : power supplies

a c 144 ) Power supply
October 8, 2009 9:16:37 PM

Of the two PSU's listed, Corsair.
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October 8, 2009 9:18:19 PM

is there one better than the two at that price range?
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October 8, 2009 10:10:47 PM

corsair easily.. the other has 6 12v rails... WOAH! never seen that many before
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October 8, 2009 10:28:58 PM

6 12 volt rails.. thats like....hrmmm... ROFLCOPTER!!!


lets see I can put a hard drive on this rail... a graphics card on this rail..
whoops I put 2 devices on one rail no wonder my pc wont boot?!!?

LOL..

corsair 1 70AMP rail = win
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October 9, 2009 4:09:21 AM

Ive got the 750W single rail corsair, and its pretty damn good.

Ive managed to lower my CPU voltage from my 650W near-no name brand psu, as this one only drops 0.02v under load.

Always go for a brand name PSU. A bad one can die more easily taking pretty much every component with it.
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a c 144 ) Power supply
October 9, 2009 1:51:56 PM

Yes. Corsairs are pretty conservatively rated. you can pull about 15% - 20% more than rated power across the whole line of PSU's and still stay in spec.

I have a TX750. Anyone else could legitimately call it a 900 watt PSU. And it is rated for full output power at 50 C.
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October 9, 2009 5:03:49 PM

I am going to pretty much be doing the same, starting with one 5850 then adding another in the future.

Does anyone know if this PSU is sufficent to support 2 5850:

COOLER MASTER Silent Pro 600
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Its modular, single rail and has 40 amps

At first I was going to get the CORSAIR CMPSU-750TX 750W because it had 60amps, but it is not as silent as the cool master nor is it modular. So its my second choice if the cool master doesnt fit my needs.


EDIT: Nevermind.. It wont work for 2.. found an great website with the info about the 5850 power requirements layed out better than AMD explained it.. That Corsair is perfect for 2 card since it has 4 6pin connectors(the +2 just means it can be an 8 connector), has enough amps and watts... :) 

Just in case someone else needed this info, heres is the web site:
http://www.guru3d.com/article/radeon-hd-5850-review-cro...
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