Apple Mac mini (Mid 2011 Technical Information Seite 22
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Mac mini (Mid 2011) Symptom Charts — Startup and Power 22
2011-07-21
Symptom Charts
Follow the steps in the order indicated below. If an action resolves the issue, retest the system
to verify.
Startup and Power
No Power, Dead Unit
Unlikely cause: speakers
Quick Check
Symptoms Quick Check
No Power, Dead Unit
• No power
• No LED
• No fan spin
• No startup chime
• No image on external display
• No hard drive activity
1. Verify power source.
2. Verify power cable.
3. Listen closely for signs of activity from system
including: rotating fan, hard drive activity, startup
chime, sleep LED, etc. If there is activity then go
to the ‘Startup and Power Issues’ symptom ow.
Deep Dive
Unlikely cause: speakers
Check Result Action Code
1. Connect AC to computer and
press the power button on
system. Verify if there is any
indication that the system has
powered up (startup chime, fan
rotation, hard drive noise, ...).
Yes The system is powering up.
Jump to Won’t Start Up
symptom ow.
No Go to step 2.
2. Reseat the installed SDRAM
memory module(s) and retest.
Does the computer start up
properly now?
Yes Badly seated SDRAM memory
module. Reseating it resolved
issue.
No Go to step 3
- Apple Technician Guide 1
- Mac mini (Mid 2011) 1
- Take Apart 4
- About This Guide 6
- Manual Updates 7
- Feedback 7
- Overview 9
- Product Congurations 10
- Service Procedure Dierences 10
- Service Part Congurations 10
- Thunderbolt 11
- System Serial Number Location 11
- Troubleshooting 12
- General Troubleshooting 13
- Troubleshooting Theory 14
- Hardware vs. Software 14
- Common Reset Procedures 14
- Starting Up in Safe Mode 15
- Sensor Errors 16
- Functional Overview 18
- Block Diagrams 19
- Symptom Charts 22
- Won’t Start Up 24
- Deep Dive 25
- Intermittent Shutdown 27
- Kernel Panic, System Crashes 31
- No Video 33
- Corrupted Video 35
- Burnt Smell/Odor 37
- Noise, Hum, Vibration 38
- Uncategorized Symptoms 40
- Communications 42
- Quick Check 45
- Ethernet Port/Device Issue 46
- Bluetooth Device Doesn’t Pair 48
- Mass Storage 57
- Hard Drive Noisy 61
- Input/Output Devices 65
- Thunderbolt Not Recognized 72
- USB Devices Not Recognized 82
- Mechanical 89
- System Runs Hot 91
- Physical Damage 92
- General Information 95
- Vertical Insertion 96
- Low-Prole Solid 96
- Platform Flex 96
- Solid State Drive Screws 97
- Logic Board Return 98
- First Remove Hierarchy 99
- Icon Legend 100
- Bottom Cover 101
- 3 Press on the cover to 102
- 1 Lay the Mac mini 102
- 2 Rotate the 102
- Reassembly 103
- 1 Replace the bottom 103
- 2 Rotate the cover 103
- First Steps 104
- 1 Gently spread the 105
- 2 Pull the module out 105
- 3 Repeat to remove 105
- Installation 106
- 1 Carefully press the 106
- 2 Pull the module into 106
- 3 Press down on the 106
- 4 Repeat to install the 106
- 1 Loosen or remove the 108
- 2 The lower right T6 fan 108
- 3 Carefully lift the fan 109
- 4 Carefully disconnect 109
- Cowling 110
- 1 Remove the T6 screw 111
- 2 Lift the cowling up 111
- Antenna Plate 112
- 1 Remove 4 screws 113
- 2 Carefully lift the 113
- 3 Disconnect the 114
- 1 Position the Antenna 114
- 2 Rotate the Antenna 115
- 3 Slide the antenna 115
- 4 A tool, such as the 115
- 5 If the plate is not 116
- 6 Install the 4 screws 116
- Logic Board 117
- 1 Important: Gently 118
- 2 Disconnect the IR 119
- 3 Make sure that at 120
- 4 Remove 2 T6 screws: 120
- 5 Insert the logic board 121
- 6 Carefully push down 121
- 7 Remove the tool 121
- 8 Disconnect the power 122
- 9 Push in on the catch 122
- 10 Once the I/O wall is 123
- 2011-07-21 124
- AirPort/Bluetooth Combo Card 126
- 1 Remove 3 screws: 127
- 2 Disconnect the ex 127
- 3 Disconnect the two 127
- 4 If the speaker has not 127
- 5 If replacing the ex 128
- Speaker 129
- 1 Remove 2 screws: 130
- 3 Note: Check the 131
- 1 Locate the battery 133
- 2 Insert a black stick 133
- 3 Grab the battery as 133
- Hard Drive (Lower Bay) 134
- 1 Important: All logic 135
- 2 Remove 2 T6 screws: 135
- 3 Insert the logic board 136
- 4 Carefully push down 136
- 5 Remove the tool 136
- 6 Slide out the hard drive 137
- 1 Slide hard drive into 137
- 2 Maneuver the drive 138
- 3 Make sure the power 138
- 4 Slide the logic board 138
- 5 Connect all cables to 138
- Power Supply 139
- 1 Slide the power cord 140
- 2 Rotate the power 140
- 4 Use a black stick to lift 141
- Hard Drive (Upper Bay) 143
- 2 Lift the drive and 144
- 3 Remove 4 screws 145
- 4 Lift the drive from the 145
- 1 If installing the drive 145
- 2 Before installing the 145
- Infrared (IR) Board and Cable 146
- 1 Remove 1 screw 147
- 2 Note the IR cable 147
- 3 Remove the IR cable 147
- 1 Insert the IR cable 148
- Housing 149
- Service Source 150
- Exploded View 151
- Screw Chart 152
- External Views 153
- Port View 154
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