RAM troubles

Discussion in 'Windows Virtual Machine' started by Anthonymatt, Jan 14, 2012.

  1. Anthonymatt

    Anthonymatt Bit poster

    Messages:
    1
    In this picture: [​IMG] shows 4GB ram that I allocated into Windows XP VM.

    Now, in this picture: [​IMG] shows that I have 2.7GB in Windows XP.

    How do I fix this problem?
     
  2. Specimen

    Specimen Product Expert

    Messages:
    3,242
    You should have at least 8 GB (might work with 6 GB) RAM to assign 4 GB to a VM or Parallels might be unable to allocate 4 GB for the VM. You probably have 8 GB because Parallels recommends a value up to 4 GB.

    But there's a second problem with Windows XP, it's most likely 32 bit (64 bit XP is very rare). This means it can only map up to 4 GB including Video RAM and other memory modules/ovehread (those 256 MB). So, if you have 1 GB assigned of Video RAM to the VM (hardware>video) this will subtract from the 4GB ceiling.
    If you reduce it to 512 MB you'll get 3.25 GB, and if you reduce it to 256, you get 3.5 GB, whatever the case there's no point in assigning 4 GB to a Windows XP 32 bit VM, calculate the amount based on video ram, for example, assign only 3.5 GB RAM if you reduce VRAM to 256 MB.

    It's up to you to decide how important is graphic support on the VM vs. RAM.
     
    Last edited: Jan 14, 2012

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