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Thread: Disappearing memory

  1. #1
    Join Date
    Oct 2011
    Beans
    24

    Disappearing memory

    I have 4GB of RAM in my computer. But Ubuntu and the BIOS screen itself reports it as 3.25GB exactly.

    I found a BIOS option called "memory hole remapping", which when enabled causes BIOS to see 4GB and Ubuntu to also see 4GB also.

    However, with this on, there are many error messages in "dmesg", and graphics reverts to gallium on the llvm pipe, software rendering.

    Also, liveCDs refuse to boot with this on.

    Does anybody have any idea what's going on?

  2. #2
    Join Date
    Nov 2008
    Location
    Sheffield, UK
    Beans
    1,514
    Distro
    Ubuntu

    Re: Disappearing memory

    your on board graphics is using your system RAM.

    Leave it as is or buy a graphics card

  3. #3
    Join Date
    Oct 2011
    Beans
    24

    Re: Disappearing memory

    No it isn't. I use a graphics card.

  4. #4
    Join Date
    Nov 2008
    Location
    Sheffield, UK
    Beans
    1,514
    Distro
    Ubuntu

    Re: Disappearing memory

    Do you have a 64-bit CPU?

    http://en.wikipedia.org/wiki/PCI_hole

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