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Thread: 4GB memory on 32 bit machine

  1. #1
    Join Date
    Aug 2008
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    Cool 4GB memory on 32 bit machine

    A while back, I purchased a laptop with 32 bit processor and 4GB memory.

    The laptop came with a sign in the packaging saying that 32 bit OSs report only 2GB of memory, and this seems to be the case.

    However, it also seems as if I can only utilize 2GB of memory.

    Is that true? Or is there a way to utilize the full 4GB? Why would they sell a 32 bit machine with 4GB memory if you can't use all of it?

  2. #2
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    Aug 2009
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    Ubuntu Development Release

    Re: 4GB memory on 32 bit machine

    #If Ubuntu in 32 bit recognizes the 4 gig of memory it will install a kernel called:
    menuentry "Ubuntu, with Linux 2.6.32-25-generic-pae (on /dev/sda10)" {
    menuentry "Ubuntu, with Linux 2.6.32-25-generic-pae (recovery mode) (on /dev/sda10)" {
    menuentry "Ubuntu, with Linux 2.6.32-24-generic-pae (on /dev/sda10)" {
    menuentry "Ubuntu, with Linux 2.6.32-24-generic-pae (recovery mode) (on /dev/sda10)" {
    #generic-pae makes use of the 4 gig of RAM
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  3. #3
    Join Date
    Sep 2009
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    Denmark
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    Ubuntu 9.10 Karmic Koala

    Re: 4GB memory on 32 bit machine

    If you run a 32 bit Linux kernel without PAE on a system with 4 gb RAM, you should get around 3.2-3.5 gb avaiable memory detected by the kernel, depending on the chipset and hardware in your system. If you only get 2 gb, there's something else wrong. Try installing memtest86+ and reboot. You will not get a option in your boot menu to run memtest86+. It can tell you exactly what memory modules are detected in your system.
    What? I'm not allowed to say fsck? Then how is i supposed to help people fix their filesystems?

  4. #4
    Join Date
    Aug 2008
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    29

    Re: 4GB memory on 32 bit machine

    Thanks garvinrick4, that is exactly it! Thanks for the help!

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