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4850x2 on 650w psu?

Last response: in Graphics & Displays
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March 16, 2010 9:20:24 AM

I am planning t upgrade my gpu to 4850x2 in Xfire wit this psu: http://www.ewiz.com/detail.php?name=PS-GX650W&title=Coo...

Will it supply enough power to support xfire??

mobo: GIGABYTE GA-MA785GT-UD3H

More about : 4850x2 650w psu

March 16, 2010 9:47:52 AM

Ia m getting mixed answers here. Anyone else supports any of the two above??
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March 16, 2010 10:05:28 AM

the +12V@52A
you will be fine with that
i say go for it
March 16, 2010 10:36:23 AM

From your site and in the $80-90 range, I would recommend the Antec Earthwatts 650w.
It is a high quality unit and will have no issues with your system.
March 16, 2010 10:58:51 AM

outlw6669 said:
From your site and in the $80-90 range, I would recommend the Antec Earthwatts 650w.
It is a high quality unit and will have no issues with your system.



The issue i have with it is that it only ha 22A on each 12v rail.
According to my research i need a psu with at least 30A on the 12v rail if i am planning to ever use X-fire.

You agree?
March 16, 2010 11:27:35 AM

Not at all ;) 
If you look at how the +12V rails are allocated, you find that +12V3 is dedicated to the two PCIe power connectors.
As there are only one 8 pin (100W) and one 6 pin (75W) PCIe power connector available, only 15A (175W/12V = 14.5833A) is required from this rail.
The 25A provided is more than enough with a little extra to spare.
Combine there are 45A (540W/12V) avaliable accross the +12V rails.

You can locate a good review of the EW650 Here.
From your sites limited options it is one of the best, certainly in your price range.
March 16, 2010 11:37:41 AM

I have no idea what you just said, all those numbers just messed up my head.
March 16, 2010 11:39:14 AM

:lol: 

In short, it will work just fine :) 
March 16, 2010 12:30:59 PM

outlw6669 said:
:lol: 

In short, it will work just fine :) 



ohh.... Right! :lol:  :lol: 

Thanks
March 16, 2010 7:11:27 PM

Quote:
dude omg its enough. 750W ROFL??? Even HD 5970 only need 650W.


I wasn't suggesting he get the 750. I said if the 650W is built the same as the 750W, its not a good PSU like you told him it was.

I agree with the EA650. 650W, and its a good unit unlike the Coolermaster PSU. Should work just fine.
!