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Thread: Maximum RAM for 32 bit Ubuntu

  1. #1
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    Sep 2007
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    Maximum RAM for 32 bit Ubuntu

    What is the maximum RAM for Ubuntu on 32 bit machine?

    Plese don't tell me to get 64 bit machine umless you are going to give me one. I am stuck with 32 bit machine, so please stick to the question.

  2. #2
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    Apr 2005
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    Ubuntu 12.04 Precise Pangolin

    Re: Maximum RAM for 32 bit Ubuntu

    The kernel is PAE enabled so the limit is very large, 64GB at the moment. More about PAE, here.

    If your CPU is one of those old Pentium Ms that don't support it then you are out of luck basically, you'll be limited to ~4GB

  3. #3
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    Re: Maximum RAM for 32 bit Ubuntu

    Thanks. The processor is 80547, PENTIUM 4 PRESCOTT DT..., 531, LGA, G1, ALTERNATE. I'm guessing that is not Pentium M.

  4. #4
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    Re: Maximum RAM for 32 bit Ubuntu

    Quote Originally Posted by borgward View Post
    Thanks. The processor is 80547, PENTIUM 4 PRESCOTT DT..., 531, LGA, G1, ALTERNATE. I'm guessing that is not Pentium M.
    You should be fine.

  5. #5
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    Re: Maximum RAM for 32 bit Ubuntu

    The more pertinent question is. "How much RAM does the motherboard support?"

  6. #6
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    Re: Maximum RAM for 32 bit Ubuntu

    Quote Originally Posted by borgward View Post
    Thanks. The processor is 80547, PENTIUM 4 PRESCOTT DT..., 531, LGA, G1, ALTERNATE. I'm guessing that is not Pentium M.
    Hmm, if that is your processor, then it's 64bit.

  7. #7
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    Re: Maximum RAM for 32 bit Ubuntu

    Quote Originally Posted by Temüjin View Post
    The more pertinent question is. "How much RAM does the motherboard support?"
    +1

    Old mobo's don't go above 3 or 4 GB, and/or don't know memory hoisting.

  8. #8
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    Ubuntu 14.10 Utopic Unicorn

    Re: Maximum RAM for 32 bit Ubuntu

    Quote Originally Posted by Temüjin View Post
    The more pertinent question is. "How much RAM does the motherboard support?"

    +1

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