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  1. #1

    Member Since
    Jul 31, 2012
    MacBook Air 2012 and System Memory
    Hi. I bought a new mid 2012 13 inch 128 GB HD MacBook Air about two days ago. It has 4 GB of RAM. It runs well and fast. However, according to conversations I have read online it appears as though I need more RAM. But as I said, my computer is new and running fast.

    Under Activity Monitor:
    Free: 36 GB
    Wired: 1 GB
    Active: 1.5 GB
    Inactive: 1.45 GB
    Used: 3.97 GB

    VM size: 222.75 GB
    Page Ins: 2GB
    Page Outs: 664 MB
    Swap Used: 465 MB

    So what's up with my computer? Thanks.

  2. #2

    wolfpuppies3's Avatar
    Member Since
    Oct 07, 2010
    Virginia, USA
    15" MB Pro, 2.66 i7 ; 11 MBA 1.8GZ i7; 13"MBA 2GZ i7 8 GB mem 512GB SSD, 2 iPad3s, 1 iPad Mini
    You cannot upgrade the memory on an Air. What you have is what you have. Your figures appear to be about normal usage for 4 GB although I would guess that your "Free" is 3.6 GB, not 36 GB. I am guessing you are using "Activity Monitor" to provide those figures.

    With it being only two days old you may be able to return it for one with 8 GB RAM from the factory. I personally always have the max memory possible in my machines to ensure that all software runs at the highest capacity the machine will allow.

  3. #3

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Early 2015 13" rMBP
    Quote Originally Posted by wolfpuppies3 View Post
    Your figures appear to be about normal usage for 4 GB although I would guess that your "Free" is 3.6 GB, not 36 GB.
    Not even that math works (3.6 + 1 + 1.5 + 1.45 > 4).

    What kinds of applications are you using? Is there ant application using an exorbitant amount of memory (relatively speaking)?
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  4. #4

    Member Since
    Feb 25, 2009
    Late 2013 rMBP, i7, 750m gpu, OSX versions 10.9.3, 10.10
    I'm thinking that Free was supposed to be 36MB not GB on that one
    My Macs: Late 2013 rMBP w/ 750m, 16Gig ram; 2013 Mac Pro 6 core w/ D700, 16Gig Ram; Mac mini G4, 1.25 GHz, 512m ram (server); Late 2011 11" MBA, 1.8GHz i7, 4Gig Ram, 256Gig SSD, HD3000; Powerbook 12" G4 1.33GHz running Linux; Apple TV (1080p version)

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