If you cannot find this manual, you may be able to download it from the official Apple Manuals page.
#Command prompt to reset mac power g5 manual
The hardcopy manual that shipped with your Mac.If your Mac is not listed in the table above, you may be able to find instructions for resetting the power-management chip in: Power Mac G4 (AGP Graphics/Gigabit Ethernet). Power-management chip reset instructions by model
Read the relevant document throroughly before proceeding. However, some of the documents include that information as part of other troubleshooting or repair activities covered by the article. Most of the AppleCare Knowledge Base documents linked in the table below directly address resetting the power-management chip for a specific Mac model. Instructions for resetting power-management chips