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Thread: PSU for high number of disks

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    Senior Member AGTDenton's Avatar
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    Question PSU for high number of disks

    A long shot but just wondered if anyone has come across a standard ATX PSU focussed on disk usage.

    In order to be able to connect 10+ hard disks, I find I would have to buy a PSU with a high wattage when in reality I'm going to use a fraction of what it can produce. But its the only way to get enough SATA power connections and that still includes utilising the old style molex connectors with a SATA converter.
    Last edited by AGTDenton; 10-03-2016 at 03:48 PM.


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    Senior Member AETAaAS's Avatar
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    Re: PSU for high number of disks

    You could try a splitter I guess? Couple examples:
    http://www.amazon.co.uk/dp/B0086OGN9E
    http://www.amazon.co.uk/dp/B005MZMK88

    There are also similar splitters for the 4 pin molex and SATA to molex. I'm not sure of your exact setup, but there is probably a cable out there for you.
    http://www.amazon.co.uk/dp/B0002GRUV4
    http://www.amazon.co.uk/dp/B000067SLY

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    root Member DanceswithUnix's Avatar
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    Re: PSU for high number of disks

    Depending on how "on the cheap" you are trying to do this, a backplane might help? This one looks like it would do 5 drives on 2 molex:

    http://www.amazon.co.uk/Icy-Box-IB-5.../dp/B006BQYSFA

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    Senior Member AGTDenton's Avatar
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    Re: PSU for high number of disks

    Quote Originally Posted by AETAaAS View Post
    You could try a splitter I guess? Couple examples:
    http://www.amazon.co.uk/dp/B0086OGN9E
    http://www.amazon.co.uk/dp/B005MZMK88
    Thank you I've not come across these before. I think that may be the best way to having 450W or less. Rather than a pointless 750W

    Your thoughts lead me on to remember when I had an ancient PATA disk cage that I didn't need that much power.
    So I may also consider using a cage like this, 3 SATA power for 5 disks...
    http://www.icydock.com/goods.php?id=163

    I'm basically trying to have a single large storage server vs. multiples.


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    Senior Member AGTDenton's Avatar
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    Re: PSU for high number of disks

    Quote Originally Posted by DanceswithUnix View Post
    Depending on how "on the cheap" you are trying to do this, a backplane might help? This one looks like it would do 5 drives on 2 molex:

    http://www.amazon.co.uk/Icy-Box-IB-5.../dp/B006BQYSFA
    Thanks, just found a newer model whilst taking an age to reply to AETaAS

    I will rethink what chassis I want... I might be able to go for a cheaper or 2nd hand chassis and add a couple of those bays.


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    Not a good person scaryjim's Avatar
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    Re: PSU for high number of disks

    Do you have to have 3.5" disks? If you don't have them already and 2.5" disks are available in the capacities you're interested in three of https://www.scan.co.uk/products/icy-...ge-for-525-bay would do the job quite nicely...

  9. #7
    Senior Member AGTDenton's Avatar
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    Re: PSU for high number of disks

    Quote Originally Posted by scaryjim View Post
    Do you have to have 3.5" disks? If you don't have them already and 2.5" disks are available in the capacities you're interested in three of https://www.scan.co.uk/products/icy-...ge-for-525-bay would do the job quite nicely...
    The OS will certainly be on 2.5" disks, however, the rest will be 4TB+
    Most full tower chassis provide at least two 2.5" mountings on the back of the motherboard tray or near the PSU so that will save some space. But if the chassis doesn't have those mountings then that will be a way to go. And more useful than an empty 5.25 DVD bay


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