Apple MD094LL/A Manuale Utente

iMac (27-inch, Mid 2010) Symptom Charts — Mass Storage 

 2010-09-09

5.  Connect original optical drive 

to known-good SATA cable. 

Verify if both CD and DVD 

media are read reliably.

Yes

SATA cable issue. Replace 

SATA cable. Go to step 6.

No

Replace optical drive.

6.  Test read compatible known-

good CD and DVD media 

(Install DVD). Verify if media is 

recognized and reads reliably.

Yes

Issue resolved.

No

Replace optical drive.

Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone

Drive Won’t Eject Media
•  Cannot insert a disc into drive
•  Cannot eject a disc from drive

1.  Use System Profiler Serial-ATA section to see if 

optical drive appears. If not, go to 

 symptom flow.

2.  Restart computer and hold down mouse button 

or keyboard eject key to cycle optical drive.

3.  Inspect optical drive slot for obstructions

1.  Verify if optical drive is listed in 

System Profiler device tree for 

Serial-ATA devices.

Yes

Optical drive communicating 

with logic board. Go to step 5.

No

Go to step 2.

2.  Verify SATA cable connections 

between optical drive and logic 

board. Visually inspect cables 

and connectors for any debris, 

damage or bent pins. Verify if 

optical drive is listed in System 

Profiler device tree.

Yes

Optical drive communicating 

with logic board. Go to step 5.

No

Replace damaged cables 

and retest. If connections are 

good and no visible cable 

damage, go to step 3.

3.  Connect known-good optical 

drive to SATA cable. Verify if 

known-good optical drive is 

listed in the System Profiler 

device tree.

Yes

Go to step 4.

No

Suspect bad SATA cable. 

Go to step 7.