Categories: Apple, G5, iMac, iMac G5, PSU – Posted on March 17, 2010November 6, 2012 Measuring iMac G5 Power Supply Voltages at Connector Plug Pinouts Exactly how how do you test the PSUs out on the Apple iMacs? How do you turn on the iMac … Continue reading >Measuring iMac G5 Power Supply Voltages at Connector Plug Pinouts