How can I see BIOS?

Discussion in 'iMac' started by hack3rcon, Apr 27, 2015.

  1. hack3rcon macrumors member

    Joined:
    Nov 26, 2014
    #1
    Hello all.
    How can I see BIOS option for my iMac?

    Thank you.
     
  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    You can't.

    Besides, Macs don't use BIOS. Ivy Bridge and earlier Macs use EFI 1.1, while Haswell and later Macs use UEFI 2.0. There is no way to access UEFI options in a Mac. It's all locked away.
     
  3. Nermal Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    New Zealand
    #3
    Technically there are a limited number of options available (such as preferred boot device and automatic timed startup), but it's probably best to ask: What are you trying to accomplish?
     
  4. hack3rcon thread starter macrumors member

    Joined:
    Nov 26, 2014
    #4
    Thus, I can't see BIOS like IBM :)
     
  5. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #5
    That's because there is no BIOS.

    Apple uses EFI 1.1 in pre-Haswell Macs and UEFI 2.0 in Haswell and later Macs.
     

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