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Mac mini (Late 2009) Symptom Charts — Mass Storage 
54
 2009-11-03
Optical Drive Not Recognized
(For systems with optical drives)
Quick Check 
Symptoms
Quick Check
Drive Not Recognized/Mount 
(J05)
Discs inject and eject, but do 
• 
not appear in Finder
Use Apple System Profiler Serial-ATA section to 
1. 
see if the optical drive appears.
Apple System Profiler Serial-ATA section will show 
2. 
any media inserted.
Check Finder Preferences and make sure “CD’s, 
3. 
DVD’s and iPods” is checked under “Show these 
items on the desktop” in the General section.
Check both CD and DVD media. If only one type 
4. 
of media is recognized, there is a laser issue. 
Replace optical drive (J03).
Deep Dive
Check
Result
Action
Code
Is the optical drive listed in the 
1. 
Serial-ATA section of the Apple 
System Profiler?
Yes
Go to step 2
No
Go to step 3
Test both CD and DVD media. 
2. 
Can drive read both CD media 
and DVD media?
Yes
Go to step 6
No
Drive has a laser issue. 
Replace the optical drive. If 
both types media fail, check 
Finder Preferences then go to 
step 3
J03
Reseat interconnect board at 
3. 
logic board and optical drive. 
Do both types of media read 
reliably now?
Yes
Go to step 6
No
Go to step 4
Connect known good optical 
4. 
drive to interconnect board. Do 
both types of media reliably 
read now?
Yes
Interconnect board and port 
on logic board good. Go to 
step 5
No
Replace interconnect board 
and test (X03). If issue persists, 
replace logic board (M19). Go 
to step 6