I have apple G5 power mc it is turn on and Ching sound also come but there is no display

It sounds like you're experiencing an issue with your Apple Power Mac G5 where it turns on and you hear the startup chime, but there's no display on the screen. This can be frustrating, but there are a few troubleshooting steps you can try to resolve the problem.

1. Check the Connections: Make sure all cables connecting your Power Mac G5 to the monitor are securely plugged in. Sometimes loose connections can cause display issues.
2. Try a Different Monitor: If possible, connect your Power Mac G5 to a different monitor to see if the issue is with the monitor itself. If you get a display on the new monitor, it indicates that the original monitor may be faulty.
3. Reset the PRAM: Resetting the Parameter RAM (PRAM) can sometimes resolve display issues on Mac computers. To do this, restart your Power Mac G5 and immediately hold down the Command (⌘), Option, P, and R keys simultaneously. Keep holding the keys until you hear the startup chime for the second time, then release them.
4. Check for Display Preferences: Sometimes the display settings on your Mac can be misconfigured, leading to a blank screen. To check this, restart your Power Mac G5 and hold down the Option key immediately after you hear the startup chime. This should bring up the Startup Manager screen, where you can select your startup disk. If you see this screen, it indicates that your Mac is booting up properly, but there may be an issue with the display preferences.
5. Inspect for Physical Damage: Examine the cables, ports, and components of your Power Mac G5 for any signs of physical damage. Damaged hardware can cause display problems, so it's important to check for any visible issues.
6. Seek Professional Assistance: If none of the above steps resolve the issue, it's possible that there may be a more serious hardware problem with your Power Mac G5. In this case, it's recommended to seek assistance from an authorized Apple service provider or technician who can diagnose and repair the problem.

By following these troubleshooting steps, you should be able to identify and resolve the display issue with your Apple Power Mac G5. If you continue to experience problems, don't hesitate to reach out for further assistance.

If your Mac doesn't start up all the way - Apple Support