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PSU Haswell support

Tags:
  • XFX
  • Support
  • Power Supplies
  • Components
  • Core
Last response: in Components
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March 20, 2014 5:25:35 AM

Firstly i have chosen to buy XFX ProSeries 550W Core Edition but i read that it doesn't support haswell...
I am gonna use intel-i5 4670k cpu and i am thinking of using SLI in the future(gtx 760 2gb gpu).
1) Can i use the XFX ProSeries 550W Core Edition or cause its not compatible with haswell it will not work?
2)What PSU you suggest me that support haswell and SLI(50$-80$)?

More about : psu haswell support

Best solution

a b ) Power supply
March 20, 2014 6:10:47 AM

It doesn't matter if you have a dedicated card. Older PSU's had real trouble supplying very small amounts of power. Newer ones don't have quite the same problems (but you should never run a PSU on no load for instance). If you are using dedicated cards then you will never go in to such a low usage scenario that you would have to care.

550W might be pushing it if you go SLI though, on my own machine I pull about 300 watts from the wall on a 3570k and a single GTX670 (and it's 80plus gold). So adding another 200 for a second video card you'd be pushing 500 watts or so from the wall side. As a rough rule of thumb you want to stay under 80% of your rated capacity to ensure long life and reliability from your supply, so if you are going to be using 500 watts you probably want to be able to supply 625 watts, or at least over 600.

Something like http://www.newegg.com/Product/Product.aspx?Item=N82E168... or http://www.newegg.com/Product/Product.aspx?Item=N82E168... might be more appropriate if you really are going to go SLI. It would probably run on the 550, but I just think running it close to it's max capacity is just asking for issues down the road, especially if you want nice stable power for overclocking.

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March 20, 2014 6:12:59 AM

thanks for your help
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