Apple MC408LL Apple Technician Guide - Page 32

Target Disk Mode, and verify, Boot from Original Mac mini

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Check 1. Boot from Original Mac mini Install DVD inserted in internal optical drive (or in optical drive of another computer setup in Target Disk Mode), and verify whether issue is still visible. 2. Use known-good SDRAM in the system. Does the corrupted video issue still appears? 3. Connect a known-good external 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. 4. Inspect display connectors and display cables and reseat them. Does the issue persist? 5. After logic board exchange, customer returns system with same video issue. Result Yes No Yes No Yes No Yes No Yes No Action Go to step 2. Issue likely caused by installed software or driver issue. Troubleshoot for software issues. Make sure all software updates have been installed. Go to step 3. Reinstall user's SDRAM and test. If corrupted video issue repeats, replace SDRAM. Verify that the correct SDRAM type is being used. Issue is isolated to one of the display ports. Go to step 4. Replace Logic board and go to step 5 Replace Logic board and go to step 5. Issue likely caused by poor connection/cable. Replace cable if Apple, and return computer to user. User's display or display cable may be incompatible(s) with the Mac mini. Recommend user to direct connect the display to computer, and contact the display/cable/ switcher manufacturer for support and service. Issue resolved with replacement logic board. Code X01 M04 M04 X03 2010-08-03 Mac mini (Mid 2010) Symptom Charts - Startup and Power 32

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Mac mini (Mid 2010) Symptom Charts — Startup and Power
32
2010-08-03
Check
Result
Action
Code
1.
Boot from Original Mac mini
Install DVD inserted in internal
optical drive (or in optical drive
of another computer setup in
Target Disk Mode), 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 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 connectors and
display cables and reseat them.
Does the issue persist?
Yes
Replace Logic board and go
to step 5.
M04
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 direct connect the
display to computer, and
contact the display/cable/
switcher manufacturer for
support and service.
No
Issue resolved with
replacement logic board.