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  1. #1
    Question About RAM In Parallel

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    Question About RAM In Parallel
    I have 8GB of RAM, just installed Parallels and gave it permission to use 4GB for Windows. I'm just wondering, has this now reduced OS X to having 4GB RAM even when the virtual machine isn't running or can it make use of the full 8GB?

  2. #2
    Question About RAM In Parallel
    robduckyworth's Avatar
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    the virtual machine only uses the RAM when it is running. after you close the vm, it becomes available for osx again.
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  3. #3
    Question About RAM In Parallel

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    Thumbs up
    Great, thanks for the quick response.

  4. #4
    Question About RAM In Parallel
    robduckyworth's Avatar
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    thats okay.
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  5. #5
    Question About RAM In Parallel
    ndwgolf's Avatar
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    I am also getting 8 GB ram on my iMac and plan to run Parallels, if the above is true can I just assign all 8 to Parallels

  6. #6
    Question About RAM In Parallel
    robduckyworth's Avatar
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    Quote Originally Posted by ndwgolf View Post
    I am also getting 8 GB ram on my iMac and plan to run Parallels, if the above is true can I just assign all 8 to Parallels
    No because Snow Leopard needs RAM to run properly. without enough RAM, your machine will become sluggish. you could probably get away with about 6GB, if you werent doing anything on SL.

    If you want to run Windows fast I reccomend doing a 64 bit installation on Bootcamp (so that Windows can adress all the RAM, 64 bit is crucial) and booting the Boot camp partition with parallels when you need both operating systems.

    note - virtualisation is not a very good gaming solution.

    of course if you are getting an additional 8GB (so your overall system memory is 12GB+ or something), you can assign this to parrallels.
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  7. #7
    Question About RAM In Parallel
    Phacade's Avatar
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    I have 12GB on my iMac right now and I gave only 2GB to Parallels for Win XP to feed on...then again Win XP will only recognize up to 3GB of RAM anyway, so no big loss. OSX still runs like a champ!
    21" 3.6GHz Core i5 iMac "Sputnik" ■ 12GB Crucial RAM ■ Monsoon flat-panel speakers ■ HP P1006 LaserJet printer ■ Full Keyboard ■ Canoscan 9000F flatbed scanner ■ ...and then of course me (being a narcissist, I consider this to be the most important mod).

  8. #8
    Question About RAM In Parallel
    PatrickOrelha's Avatar
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    Apr 15, 2011
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    Amount of Ram
    Hey guys, i just got a mac TODAY! I already have parallels installed in it, but I want to use a 64-bit Video editing windows software. Is it possible to change the amount of RAM used by parallels after installed? And what would be the best config for parallels regarding 64-bit video editing?

    I'm sorry about the very basic questions...

    here goes the computer config..


    MacBook Pro 500GB
    Intel Core i7
    2.66 GHz
    Memory:8 GB

  9. #9
    Question About RAM In Parallel
    Raz0rEdge's Avatar
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    Yes you can dynamically alter the memory config for a VM after it's created. Just shut the VM down and alter as needed..

    You will, however, also need to have already installed 64-bit Windows to make sure of >4GB of memory..

    Regards

  10. #10
    Question About RAM In Parallel
    PatrickOrelha's Avatar
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    Apr 15, 2011
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    Thank you!
    Thanks for replying so fast. Do you think that 3GB is enough?

  11. #11
    Question About RAM In Parallel
    robduckyworth's Avatar
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    Quote Originally Posted by PatrickOrelha View Post
    Thanks for replying so fast. Do you think that 3GB is enough?
    If you want sheer performance, a VM isnt gonna cut it. I would go with a native Boot Camp install.

    64 bit pretty much means that it is capable of using more than 4GB of RAM. if you give it 3GB, you are wasting that option. It will probably be enough though, yes. It wont be as fast as Boot Camp.
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  12. #12
    Question About RAM In Parallel
    Raz0rEdge's Avatar
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    I use a Linux installation inside VirtualBox and have given it 4GB of memory and 4 CPUs and it works great for me..

    Regards

  13. #13
    Question About RAM In Parallel
    PatrickOrelha's Avatar
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    Apr 15, 2011
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    Thanks guys!
    I hate using parallels, it's hindering me from learning about Mac, but i really need to run Corel Draw, the program is not good, but I'm very comfortable with it, I'm installing the adobe suite on the mac but it will take me forever to get comfortable with inDesign

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