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I have 1 GB physical RAM. BIOS shows = 1048576 Kilobyte = 1024 Megabyte = 1 Gigabyte Slackware 10.2 shows = 904496 kilobyte = 883 Megabyte 1024 - 883 = ...
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  1. #1
    Just Joined! Panzer General I's Avatar
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    Feb 2006
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    have 1 GB RAM but shows less than 1 GB


    I have 1 GB physical RAM.
    BIOS shows = 1048576 Kilobyte = 1024 Megabyte = 1 Gigabyte
    Slackware 10.2 shows = 904496 kilobyte = 883 Megabyte

    1024 - 883 = 140

    Where is my 140 Megabyte?
    How can i fix this?
    Thank you.
    Code:
    root@localhost:/proc# free
                 total       used       free     shared    buffers     cached
    Mem:        904496     325316     579180          0      44720     156624
    -/+ buffers/cache:     123972     780524
    Swap:       305192          0     305192

  2. #2
    Linux Enthusiast
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    Jun 2005
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    668
    You might have to compile a kernel with HIMEM support, but I thought that was only for machines over 1GB of system RAM.

    I might be wrong

  3. #3
    Just Joined!
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    yes, you need to recompile your kernel with the HIMEM 4GB option in order to utilize anything over 883MB. If you need help with that task, feel free to ask or search the forums.

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  5. #4
    Linux Newbie deek's Avatar
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    Fort Wayne, IN
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    I've got the same problem, although I have 1.5GB of RAM on my slackbox. I think it shows about 940MB or something close (it might actually show 904 like you have).

    Anyways, is this a simple task, to recompile with HIMEM support? I have a stock 10.2 full install on my box. I have added a few apps and an nvidia driver, but other than that, very vanilla. I didn't want to try this a few months ago, as this was my main system, but since then I haven't been using it as much, so if this is fairly simple, I could see doing a quick recompile and access this other half a gig I have gone without...
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