Справочник Пользователя для Apple LATE 2009

Mac mini (Late 2009) Symptom Charts — Startup and Power 

 2009-11-03

Unlikely cause: enclosure, cables.

Buzzing noise

• 

Rattling noise

• 

Ticking noise

• 

Squeaking

• 

Verify that the vents on the bottom and 

back of the system are free of dust and other 

obstructions that might inhibit proper airflow 

through the system. 
Launch Applications/Utilities/Activity Monitor. 

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.
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.
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 speakers symptom flow for 

additional information.
Go to Deep Dive.