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Thread: Memory: Have 3GB, only 256MB found?

  1. #1
    Join Date
    Apr 2009
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    Question Memory: Have 3GB, only 256MB found?

    Hi,
    I have an Dell Poweredge 1850 with Ubuntu 9.04(jaunty) installed (2.6.28-15). It's very slow and I was trying to find out why when I discovered Top showing only 250332k total memory?!? The server har 3 GB installed.

    /proc/meminfo also returns: MemTotal: 250332 kB
    System Monitor shows 244.5MiB

    But dmidecode returns 2*1024MB + 2*512MB = 3 GB

    Any clues how to make Ubuntu use the the rest of the memory?

    (Attached: meminfo and dmidecode(zipped due to size))

    Regards
    Martin
    Attached Files Attached Files

  2. #2
    Join Date
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    Re: Memory: Have 3GB, only 256MB found?

    stick them in 1 at a time, see what does not detect.
    are you sure your using the right kind?

    it uses PC2-3200 ECC REGISTERED 240 PIN DDR2
    Last edited by kerry_s; September 28th, 2009 at 11:53 AM.

  3. #3
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    Re: Memory: Have 3GB, only 256MB found?

    Forgot to mention all memory was identified/working on the server using previous operating system (windows server)

  4. #4
    Join Date
    Dec 2008
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    Ubuntu 11.10 Oneiric Ocelot

    Re: Memory: Have 3GB, only 256MB found?

    In the bios there may be a setting for OS installation which limits memory usage to 256mb, soounds like this could be turned on and causing the problem.

  5. #5
    Join Date
    Apr 2009
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    Talking Re: Memory: Have 3GB, only 256MB found? [SOLVED]

    Quote Originally Posted by trundlenut View Post
    In the bios there may be a setting for OS installation which limits memory usage to 256mb, soounds like this could be turned on and causing the problem.
    THANKS! That was the problem!

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