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Thread: Low power with ECC and reasonable Single thread performance.........

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    Low power with ECC and reasonable Single thread performance.........

    I am looking for the lowest cost option for a system with the following requirements..........

    Max motherboard size Micro ATX
    Must be able to take 64GB ECC RAM. More is highly desirable but not essential.
    ECC corrections and errors must be detectable/reportable. Silent corruption is not an option! I know ECC works on a lot of AMD systems but is unsupported - and the ECC errors simply do not get reported.
    Idle power usage to be as low as possible when running ESXi - with 2x3.5" Disks running I am trying to get power down to around 30w idle
    Minimum 6 cores/12 threads (or 8 cores/8 threads) with decent single thread performance - at least equivalent to 2.5Ghz Haswell. i.e. probably not Atom based.
    High speed networking - either a PCIe slot or 10 Gb SFP+/10GbE on the motherboard.

    So far, most of what I have found are Xeon-D based systems but they are expensive. E.g. The Supermicro SYS-E200-8D
    Atom based systems are cheaper but I believe the single thread performance just isn't good enough.
    Some AMD embedded systems looked hopeful but the ones with 10 GbE are as pricey as the Xeon-D systems.

    Is there anything in doing my research that I might have missed. Perhaps something that costs closer to £500 for the Motherboard with CPU rather than £1k?
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    DDY
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    Re: Low power with ECC and reasonable Single thread performance.........

    I was doing some server shopping not long ago and figured a plain off-the-shelf Dell, HP, Lenovo etc. server was the way to go, a 9th gen Core Xeon 6c12t with 64GB RAM mid-tower server go for about £600-700.

    The Dell Poweredge Xeon E-2124 (9th gen Core 4c4t) server I ended up buying does about 30W idle, so I'd imagine the same model with a 6c or 8c would be about the same idle power.

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    Re: Low power with ECC and reasonable Single thread performance.........

    Thanks - where could you find the 6c12t servers in that price range? I've checked the usual suspects and they are looking more like £900 with a lot less than 64GB RAM.
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    Re: Low power with ECC and reasonable Single thread performance.........

    For AMD ECC you need an Asrock or Asus motherboard, and either a desktop CPU or if you want really low power a pro series APU such as the 5750G.

    I'm running an Asus X470 Pro motherboard with ECC

    Windows won't report errors it just silently corrects them, but Linux does (Fedora 35 here):

    Code:
    [root@dot ~]# edac-util -v
    mc0: 0 Uncorrected Errors with no DIMM info
    mc0: 0 Corrected Errors with no DIMM info
    mc0: csrow2: 0 Uncorrected Errors
    mc0: csrow2: mc#0csrow#2channel#0: 0 Corrected Errors
    mc0: csrow2: mc#0csrow#2channel#1: 0 Corrected Errors
    edac-util: No errors to report.

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    DDY
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    Re: Low power with ECC and reasonable Single thread performance.........

    Quote Originally Posted by badass View Post
    Thanks - where could you find the 6c12t servers in that price range? I've checked the usual suspects and they are looking more like £900 with a lot less than 64GB RAM.
    Whoops, I should add that's used prices, on Ebay.

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