Apple Mac mini manual Noise, Hum, Vibration, P08, Symptoms Quick Check Noise/Hum/Vibration

3.Can the source of the odor be located using nose?

Yes	Replace affected module(s)	P08
	and retest system.
No	Contact Apple for assistance
	if you feel that there is a
	possible safety issue with the
	computer that has not been
	resolved in the previous steps.

Noise, Hum, Vibration

Unlikely cause: enclosure, cables.

Quick Check

Symptoms		Quick Check
Noise/Hum/Vibration		1.	Verify that the vents on the bottom and
•	Buzzing noise		back of the system are free of dust and other
•	Rattling noise		obstructions that might inhibit proper airflow
			through the system.
•	Ticking noise
		2.	Launch Applications/Utilities/Activity Monitor.
•	Squeaking
			Determine whether an application or process is
			consuming a high percentage of CPU bandwidth.
			CPU intensive applications can cause the fans
			to run fast in order to maintain the proper
			internal system temperatures. If needed, quit the
			application or restart the system to resolve the
			issue.
		3.	Eject optical media from optical drive. Out of
			balance optical media can generate audible
			noise. To resolve try a different brand of media.
			For additional information jump to ‘ Optical Drive
			Noisy’ symptom flow. Disconnect all third party
			devices and confirm whether the odor is being
			generated by the device.
		4.	Play sound sample at loud and soft volume levels
			to determine if the noise is caused by the speaker
			or the amplifier circuit. Jump to ‘Distorted sound
			from built-in speaker symptom flow for additional
			information.
		5.	Go to Deep Dive.

2010-08-03 Mac mini (Mid 2010) Symptom Charts — Startup and Power  34