The Digital Plumber
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Resetting your Mac hardware
How to reset the Parameter RAM (PRAM), NVRAM in Open Firmware on a PowerPC Mac, CUDA, System Management Controller, System Management Unit or Power Management Unit if things go wrong with your Macintosh.
Resetting your Mac's PRAM and NVRAM
Resetting the NVRAM in Open Firmware on a PowerPC Mac
Resetting MacBook and MacBook Pro System Management Controller (SMC)
Resetting PowerBook and iBook Power Management Unit (PMU)
Resetting the Mac Pro System Management Controller (SMC)
Resetting Cuda/PMU on Power Mac G5, Power Mac G4, Power Macintosh G3
Intel-based iMac, Intel-based Mac mini: How to reset the System Management Controller
PowerPC-based Mac mini: How to Reset the PMU
iMac G5: How to Reset the SMU
Resetting the iMac G4 Power Management Unit (PMU)