System information

Mac mini (Mid 2011) Symptom Charts — Display 55
2011-07-21
Deep Dive
Check Result Action Code
1. Start up from known-good
original system media or an up-
to-date, bootable OS X volume
and verify whether issue is still
visible.
Yes Go to step 2.
No Issue likely caused by installed
software or driver issue.
Troubleshoot for software
issues. Make sure all software
updates have been installed.
2. Use known-good SDRAM in
the system. Does the corrupted
video issue still appears?
Yes Go to step 3.
No Reinstall user’s SDRAM and
test. If corrupted video issue
repeats, replace SDRAM. Verify
that the correct SDRAM type
is being used.
X01
3. Connect a known-good
external mini DisplayPort
display, then an HDMI display
(or a DVI display via an HDMI
to DVI adapter) to each video
ports and verify if issue only
happens to one of the ports.
Yes Issue is isolated to one of the
display ports. Go to step 4.
No Replace Logic board and go
to step 5
M04
4. Inspect display connector and
display cables and reseat them.
Does the issue persist?
Yes Replace Logic board and go
to step 5.
M32
No Issue likely caused by poor
connection/cable. Replace
cable if Apple, and return
computer to user.
X03
5. After logic board exchange,
customer returns system with
same video issue.
Yes User’s display or display cable
may be incompatible(s) with
the Mac mini. Recommend
user to contact the display/
cable/switcher manufacturer
for support and service.
No Issue resolved with
replacement logic board.