Actually, it is a problem with the Power Management Unit (PMU) needing to be reset. The PMU is really a separate computer within itself. When it gets corrupted or out of sync, it causes problems with normal operation. One thing to remember, that is the PMU is corrupted, it will cause the PRAM battery to lose its charge within 3 days time, instead of 5-7 years.
To reset the PMU, here's what you do:
Step 1.) Unplug the power cord.
Step 2.) Locate the PMU reset button (a small, red or gray push button near the PRAM battery holder).
Step 3.) Have a known good PRAM battery on hand or currently installed in holder. If the battery is in place, temporarily take it out.
Step 4.) Press and hold the button in for 2 seconds.
Step 5.) Place the PRAM battery back into its holder.
Step 6.) Press the button one last time. DO NOT hold it in. If you hold it in, it will corrupt or crash the PMU and you'll have to start over again. Also, again, if the PMU crashes or becomes corrupted, it will cause the PRAM battery will lose its charge within 3 days time, instead of 5-7 years, as it's supposed to.
Step 7.) Plug the power cord back in and power it on. The Mac's PMU is now back in sync.
The link below is Apple's instructions for resetting the PMU. I know it is instructed for the AGP/Gigabit Ethernet model, but it works just as well for other Power Mac G4 models.
http://docs.info.apple.com/article.html?artnum=95037
Give it a try a report back with your results.
73s de Phreakout. :rambo:
To reset the PMU, here's what you do:
Step 1.) Unplug the power cord.
Step 2.) Locate the PMU reset button (a small, red or gray push button near the PRAM battery holder).
Step 3.) Have a known good PRAM battery on hand or currently installed in holder. If the battery is in place, temporarily take it out.
Step 4.) Press and hold the button in for 2 seconds.
Step 5.) Place the PRAM battery back into its holder.
Step 6.) Press the button one last time. DO NOT hold it in. If you hold it in, it will corrupt or crash the PMU and you'll have to start over again. Also, again, if the PMU crashes or becomes corrupted, it will cause the PRAM battery will lose its charge within 3 days time, instead of 5-7 years, as it's supposed to.
Step 7.) Plug the power cord back in and power it on. The Mac's PMU is now back in sync.
The link below is Apple's instructions for resetting the PMU. I know it is instructed for the AGP/Gigabit Ethernet model, but it works just as well for other Power Mac G4 models.
http://docs.info.apple.com/article.html?artnum=95037
Give it a try a report back with your results.
73s de Phreakout. :rambo: