Has anyone tried putting more than 32GB RAM in Alienware 18? (ie 64Gb)?

Discussion in 'Hardware Components and Aftermarket Upgrades' started by sinaicrafts, May 12, 2017.

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  1. sinaicrafts

    sinaicrafts Newbie

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    Has anyone tried putting more than 32GB RAM in Alienware 18? (ie 64Gb)?

    I had a Lenovo PC before which ran totally okay on 16GB even though the official max was 8GB.

    I have just discovered there are laptop RAM available in 16GB cards, and there are four slots.

    Please let me know if you have any experience with this!
     
    Last edited by a moderator: May 20, 2017
  2. tijo

    tijo Sacred Blame Super Moderator

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    All Intel CPUs before the Skylake generation had some flaw in them that basically made it impossible to use 16 GB SODIMM modules, so depending on your hardware generation, you may be SOL. My M6700 has 4 slots, but will not run 64 GB due to it having an ivy bridge i7, so it's stuck at max 32 GB.
     
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  3. Maru

    Maru Notebook Consultant

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    Perhaps older mobile parts were limited to 32 physical address lines to fetch 64-bit words.
    2³² words = 4 GibiWords
    64-bits = 8 bytes (octets)
    ∴ 2³² 64-bit words = 32 GibiBytes

    Intel has been focusing on energy efficiency. They have sparingly added more address bits only when the memory devices become available to support it, not in advance for "future-proofing". Sky Lake and Kaby Lake have one more bit (33 bits for 64GibiByte addressing across 2 channels) in both the i7 and Xeon flavors. Higher-end desktop Broadwell-E has another bit (34 bits for 128GibiByte addressing across 4 channels). Server parts have more (such as 40 bits).
     
  4. tijo

    tijo Sacred Blame Super Moderator

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  5. kojack

    kojack Notebook Virtuoso

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    Can I chime in here with a somewhat related question. I have my wife a dell inspiron 13 3000 2 in 1. It has a single DDR3L module. I am guessing the most I can put in there is 8gb modules. Correct?
     
  6. tijo

    tijo Sacred Blame Super Moderator

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    If it has an Intel CPU, then yes. That being said, 8 GB is still respectable.
     
  7. kojack

    kojack Notebook Virtuoso

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    Yes it does have a core i3. Thanks....at least I never went and wasted money buying a 16gb stick. I have 16gb running in my dell. I do a lot of video and photo editing on my system so I wanted the extra ram!
     
  8. Starlight5

    Starlight5 Don't call me Chris, my name is Elvis

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    What CPU, exactly? System with i3-5010U & i3-6100U should handle 16GB memory modules.
     
  9. kojack

    kojack Notebook Virtuoso

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    I will have to look to see which one exactly.....give me a few min!
     
  10. kojack

    kojack Notebook Virtuoso

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    its the core m37y30
     
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