Apple iMac G5, 20 Inch Replacement Instructions
![Apple iMac G5, 20 Inch manual cover](/images/1c37ba7f94950c2bd1519cb9/thumbs/thumb175x175.webp)
To reset the PRAM, restart your iMac G5 and immediately press and hold Command + Option + P + R keys until you hear the startup sound twice.
Check the power cable connections, try a different power outlet, and perform an SMC reset by unplugging the power cord for 15 seconds, then reconnecting it.
Turn off the iMac, disconnect all cables, lay it face down on a soft surface, remove the RAM access door at the bottom, and replace the RAM modules.
Regularly clean dust from vents, update macOS, back up data, and check for software updates to ensure the iMac runs smoothly.
Check for loose connections, reset the PRAM, and verify display settings in System Preferences. If problems persist, consult a technician.
Ensure the iMac is well-ventilated, check for dust build-up, and reset the SMC. Consider checking Activity Monitor for resource-heavy applications.
Turn off and unplug the iMac. Use a soft, lint-free cloth slightly dampened with water or screen cleaner. Avoid using liquid directly on the screen.
Insert the original system install disc, restart the iMac holding the D key, and follow the on-screen instructions to run the Apple Hardware Test.
Ensure proper ventilation, clean dust from vents, and check for resource-intensive processes. Consider resetting the SMC if necessary.
Use available USB and FireWire ports for connecting external devices. Ensure compatibility with macOS and install necessary drivers if required.