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I recently acquired a Power Mac G4 MDD in which the sound does not work. I’m fairly new with Macs, so I don’t know what to try The speaker on the computer looks blown, but any external speakers I try don’t work on any of the ports. I’ve tried putting in an SB Audigy and Audigy 2, neither of them got picked up in Mac OS The only resemblance of sound is a little speaker pop on startup I’m stumped, can anyone help?
Let’s first see if it is the preferences. Go to System Preferences > Sound and see how it is set for out put. Plug the external speakers in (make sure they are not ones than need a special driver). Put the sound on line out. Make sure you selected the speaker port and not the microphone port. Let me know your results. If I need to I can play with one of my two MDD machines. Are you running 10.5.8?
I think I found the problem Yesterday, I was using this computer with the ADC monitor I got with it, and all of a sudden, the bottom backlight went out. I was confused, so I rebooted the thing, the monitor was fine at first, then it went out again. I decided to test another video card, same problem. I hooked up that monitor to my 2002 G4 QuickSilver, and then it worked just fine, so I believe the power supply is failing, and thus might be the reason for the audio not working. Could I possibly use the PSU from my QuickSilver to test if it was the PSU, or would it consume too much power?
