Apple G4 manual

Troubleshooting General/ Power Supply Verification - 30

not present, replace the power supply; otherwise, go to the next step.

8.Connect the black lead of the volt meter to pin 16 of the power supply connector for AGP and PCI models or pin 11 for Gigabit Ethernet/DIgital Audio/QuickSilver/QuickSilver 2002 mod- els. Connect the red lead of the volt meter to pin 4 of the power supply connector. The volt meter should measure approxi- mately +5V.

If you do not get a reading of +5V, re-check the volt meter connections and measure the voltage again. If voltage is still not present, replace the power supply; otherwise, go to the next step.

9.Measure the voltage of pin 10 on the power supply connector. The voltage should measure approximately +12V.

If you do not get a reading of +12V, re-check the volt meter