Can i reset PRam / SMC with out grey boot screen?

Discussion in 'Mac Pro' started by Amethyst, Mar 15, 2012.

  1. Amethyst macrumors 6502a

    Aug 8, 2006
    I haven't any EFI32 GPU in my Mac pro 1,1
    (My 3,1 just upgrade to 6870 that EFI64 card)
    So i want to reset pram smc bios for the sake of upgrade cpu.

    How can i doing it?
  2. flatfoot macrumors 65816

    Aug 11, 2009
    Look up those routines in the Apple Knowledge Base. You don't even need a display connected to your Mac to perform them, so you're good to go.

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