PRAM Zapping

Discussion in 'Mac Help/Tips' started by Rajj, Dec 22, 2002.

  1. Rajj macrumors 6502a


    May 29, 2002
    32° 44' N 117° 10' W
  2. mc68k macrumors 68000


    Apr 16, 2002
    PRAM or parameter RAM is a small amount of battery-fed memory, similar to a CMOS on a PC. It stores some details that your system needs quickliy at startup.

    If you want to clear it you could pull the lithium battery associated with the memory or you can do the cmd-opt-p-r. Pulling the battery and hitting the CUDA (Capacitor Unit Discharge ASIC) switch will reset your NVRAM, an even lower-level memory that open firmware uses.

    As to what it clears, a google search will help you with more details.

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