What PSU should i looking at?

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waikariboy

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#141026 27-Feb-2014 14:34

Rebuilding my Media Server. Looking at around 15x 3.5 sata drives / 2x 2.5" sata drives. What sort of power supply should i be looking at. ATM im wondering if 1000watt is a over kill.

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ubergeeknz

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#995530 27-Feb-2014 14:40

I would take a look at the requirements of each component, go from there. Just the overall wattage is not the only factor; you need to make sure it has enough grunt on each rail where power's needed.

Ragnor

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#995542 27-Feb-2014 14:46

Usually give one of the power supply calculators a run to sanity check wattage you need
eg: http://extreme.outervision.com/psucalculatorlite.jsp

waikariboy

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#995545 27-Feb-2014 14:54

Ragnor: Usually give one of the power supply calculators a run to sanity check wattage you need
eg: http://extreme.outervision.com/psucalculatorlite.jsp

Telling me 521w so a 850 to be on the safe side?

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sidefx

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#995546 27-Feb-2014 15:00

650W should be fine IMO, the PSU calculators tend to err on the side of caution already so don't go way over what they say. HDDs tend not to use much at all compared to say a higher end GPU, and 850W+ PSUs are more aimed at crossfire\SLI.

(EDIT: Just be sure to go for a good brand PSU)

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waikariboy

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#995550 27-Feb-2014 15:08

sidefx: 650W should be fine IMO, the PSU calculators tend to err on the side of caution already so don't go way over what they say. HDDs tend not to use much at all compared to say a higher end GPU, and 850W+ PSUs are more aimed at crossfire\SLI.

(EDIT: Just be sure to go for a good brand PSU)

Thanks will do.

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hio77

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#995564 27-Feb-2014 15:39

for lots of hdds, your gonna wanna be looking for single rail if possible.

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#995649 27-Feb-2014 17:21

waikariboy: Rebuilding my Media Server. Looking at around 15x 3.5 sata drives / 2x 2.5" sata drives. What sort of power supply should i be looking at. ATM im wondering if 1000watt is a over kill.

Are you using RAID?
If so, set your RAID card(s) to stagger the startup times of the HDDs.
This will reduce the power surge created when 15+ HDDs all start up at once.
And yes, 1000W is overkill.

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