Apple G4 manual Error Tones

	Troubleshooting		Symptom Charts/ Error Tones - 45
		Error Tones
		Note: Error tones occur before system software loads.
Computer beeps once		One beep means that no RAM is installed or detected.
at startup		1	If no DIMM is present, install a known-good DIMM in the top
			slot and try again.
		2	Reseat the DIMMs.
		3	Run Apple Hardware Test. If the test finds bad memory,
			replace the DIMMs one at a time and test until all bad DIMMs
			are replaced with known-good modules.
		4	Reseat the processor module.
		5	Replace the processor module.
		6	Replace the logic board.