PSU for NAS? Fan or Fanless?

rtho782

rtho782

rtho782

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Suffolk
I'm building a NAS from random spare components, currently:

i5 4460s (65W)
24GB DDR3
z97 board mATX
4x2tb drives
120GB mSATA ssd (boot)

I have this ready to go into a Node 804 case, which is the only thing I'm having to buy.

I have a random no-name 500W PSU, which will do for now, but I feel it's likely noisy and not very efficient. I want to replace it. I want to have capacity to go to to 8 HDDs, I'm going to be running ZFS hence decent amount of RAM.

I figure ~450W should be enough, not using a GPU here. I'm a bit of a PSU snob, so I only really want to look at Superflower.

I see this, which is probably fine:

https://www.overclockers.co.uk/showproduct.php?prodid=CA-002-SF&groupid=701&catid=123&subcat=2462

But then I see this, and the idea of fanless excites me:

https://www.overclockers.co.uk/showproduct.php?prodid=CA-012-SF&groupid=701&catid=123&subcat=2462


But I feel like £85 is a bit silly, and with very similar efficiencies the fan on the fan model can't exactly be spinning hard to dissipate ~18W of heat at 50% load. Fanless also makes me think unreliable.

Of course, the CPU cooler isn't fanless, and even if it were, I'd want at least a 120mm fan on the HDDs.

Am I better just going for the model with a fan?
 
Not sure on the Superflower you listed, if it supports a hybrid/fanless mode - then it'll probably run fanless most of the time except when under heavier load. With 8 hard drives I doubt you'd hear the fan, and I'd rather it be there in a NAS so it can kick in if needed rather than overheat and cut out.
 
Golden Green doesn't have fanless mode, however it is still very quiet.

The fanless will have plenty of power though, as I imagine you'll struggle to break probably 120W on load :P
 
Next to the TV is my current thought, as there is already a gigabit switch there. If I can find a way to route the cable, I may hide it in the cellar, in which case it can make as much noise as it likes!!!
 
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