update Mid 2007 iMac 4GB RAM to Yosemite?

Discussion in 'OS X Yosemite (10.10)' started by patent10021, Oct 11, 2016.

  1. patent10021 macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #1
    I heard it's not recommend to update the Mid 2007 iMac to Yosemite as it requires too much RAM.

    Right now this iMac is running 10.7.5. Should I upgrade only to Mavs?
     
  2. Floris macrumors 68020

    Floris

    Joined:
    Sep 7, 2007
    Location:
    Netherlands
    #2
    Here is a list of compatibility for Yosemite, https://en.wikipedia.org/wiki/OS_X_Yosemite
    Mid 2007 iMac is on the list, but it seems to be on the 'edge'.
    2GB RAM seems to be required, 4GB helps.
    Make a full system backup, give it a try? Restore to backup if it isn't to your liking?
     
  3. patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #3
    Hi. Yup I already know it's compatible. But I heard that this iMac is brutally slow on Yosemite so I was hoping to get this confirmed. What do you think if I just upgrade to Mavs?
     
  4. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #4
    Install El Cap instead (10.11.6). Also it would be best to swap the HDD for an SSD if you're able to.
     
  5. elf69 macrumors 68000

    elf69

    Joined:
    Jun 2, 2016
    Location:
    Cornwall UK
    #5
    I have a 2007 20" imac (aluminium, not white)

    2.0GHz core2duo with 4GB ram.

    I run el capitan.

    rarely get the beachball and works well.
    I am going to upgrade to 6GB and SSD soon.
     
  6. patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #6
    10.11.6 specifically? Not just the GM for example?

    Also I know El Cap works but many people say it's slower than Lion/Mavs on these 2007 iMacs. Do you think that's true? Because I don't want El Cap to just work. I would like to see an improvement in speed or at least the same speed.
     
  7. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #7
    Yeah, 10.11.6 is the latest build of El Cap. It runs better than Yosemite in my experience.

    Lion was an absolute RAM-hungry dog and not much is supported on it anyway. Mavs is stable and a solid OS but has the same issue with compatibility these days. Honestly, I think El Cap would run OK. My housemate has your model of iMac and it seems to be fine.

    Worth remembering that after the update, the system will be quite slow while it's indexing, so don't be immediately disheartened; give it a few days. Worst case scenario, throw in an SSD and the performance will be vastly improved.
     
  8. patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #8
    Thanks. Can't throw in an SSD since it's not my machine but I'll definitely recommend it to my friend. I put in an SSD in my mum's 2007 MB and the start up is pretty much just as fast as my 2015 MBPr lol.
     

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