Memory ID-ECC or non-ECC?

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  1. Posts : 122
    Win 10 Pro x64 Ver 20H2
       #1

    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 Computers


  2. Posts : 17,272
    Windows 11 Pro
       #2

    Unless it is in a server, it is 99% going to be non-ECC
      My Computer


  3. Posts : 194
    Windows 10 Pro
       #3

    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 Computer


  4. Posts : 3,257
    Windows 10 Pro
       #4

    jl2509 said:
    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 Computer


  5. Posts : 194
    Windows 10 Pro
       #5

    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 Computer


  6. Posts : 122
    Win 10 Pro x64 Ver 20H2
    Thread Starter
       #6

    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 Computers


  7. Posts : 194
    Windows 10 Pro
       #7

    Good to see that you have the answers required.
      My Computer


  8. Posts : 3,257
    Windows 10 Pro
       #8

    jl2509 said:
    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 Computer


  9. Posts : 194
    Windows 10 Pro
       #9

    it happens, good luck with the reinstall
      My Computer


  10. Posts : 1
    windows server 2012
       #10

    jl2509 said:
    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
    thank , i got 6
      My Computer


 

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