1.    14 May 2017 #1
    Join Date : Mar 2016
    Posts : 64
    Win 10 Pro x64

    Memory ID-ECC or non-ECC?


    I thought I had 16GB of RAM, but two of my four cards are only 1 GB. I'd like to replace them but I can't recall whether I have ECC or non-ECC RAM. Is there an easy way to check?
      My ComputerSystem Spec
  2.    14 May 2017 #2
    Join Date : Jul 2015
    Posts : 9,416
    Windows 10 Pro

    Unless it is in a server, it is 99% going to be non-ECC
      My ComputerSystem Spec
  3.    14 May 2017 #3
    Join Date : May 2017
    Posts : 95
    Windows 10 Pro

    Hi there

    run the following from command or powershell to determine the memory type installed...

    "wmic memphysical get memoryerrorcorrection" no quotes

    The returned code is the type of memory installed: Key Below...

    0 (0x0) Reserved
    1 (0x1) Other
    2 (0x2) Unknown
    3 (0x3) None
    4 (0x4) Parity
    5 (0x5) Single-bit ECC
    6 (0x6) Multi-bit ECC
    7 (0x7) CRC


    HTH
      My ComputerSystem Spec
  4.    14 May 2017 #4
    Join Date : Sep 2014
    Nashville, TN
    Posts : 3,143
    Windows 10 Pro

    Quote Originally Posted by jl2509 View Post
    Hi there
    run the following from command or powershell to determine the memory type installed...

    "wmic memphysical get memoryerrorcorrection" no quotes
    Hmm.. I get "No Instance(s) available" when I run that command.
      My ComputerSystem Spec
  5.    14 May 2017 #5
    Join Date : May 2017
    Posts : 95
    Windows 10 Pro

    Just tried the same command on 5 separate systems with results as expected.
    Used this command for many years and never seen "No Instance(s) available" before...

    Can you run "wmic MEMORYCHIP get DataWidth,TotalWidth" no quotes
    If the TotalWidth value is larger than the DataWidth value you have ECC memory.

    The first method however is more reliable.

    HTH
      My ComputerSystem Spec
  6.    14 May 2017 #6
    Join Date : Mar 2016
    Posts : 64
    Win 10 Pro x64
    Thread Starter

    I ran it and got a "3", so it's non-ECC.

    My workstation can take either ECC or non-, but not both at once. I think it came with ECC, but only 4GB worth.
      My ComputerSystem Spec
  7.    14 May 2017 #7
    Join Date : May 2017
    Posts : 95
    Windows 10 Pro

    Good to see that you have the answers required.
      My ComputerSystem Spec
  8.    14 May 2017 #8
    Join Date : Sep 2014
    Nashville, TN
    Posts : 3,143
    Windows 10 Pro

    Quote Originally Posted by jl2509 View Post
    Just tried the same command on 5 separate systems with results as expected.
    Used this command for many years and never seen "No Instance(s) available" before...

    Can you run "wmic MEMORYCHIP get DataWidth,TotalWidth" no quotes
    If the TotalWidth value is larger than the DataWidth value you have ECC memory.

    The first method however is more reliable.

    HTH
    Hmm.. get the same thing. My WMI database must be corrupted or something. It works on a different system, so it must be my main box.

    Oh well, I've been meaning to do a clean install on that for a while..
      My ComputerSystem Spec
  9.    14 May 2017 #9
    Join Date : May 2017
    Posts : 95
    Windows 10 Pro

    it happens, good luck with the reinstall
      My ComputerSystem Spec

 


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