Mac Users Guide:
Power Macintosh G3 PMU Reset Button
Mac Users Guide:
Power Macintosh G4 PMU Reset Button
Mac Users Guide:
Power Macintosh G4 PMU Reset Button
Mac Users Guide:
Power Macintosh G5 PMU Reset Button
Mac Users Guide:
iMac G5 Reset SMU: No longer termed iMac PMU reset button
Mac Users Guide:
Resetting the PMU: Power Macintosh G4 1.0Ghz Dual Processor (Mirrored Drive Doors)
Mac Users Guide:
Resetting the PMU: iMac G3 500Mhz (2001) “Indigo”