Mac Mini Late09

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Apple Technician Guide

Mac mini (Late 2009)Mac mini (Late 2009) and Mac mini Server (Late 2009)

2009-10-27


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Apple Inc.

2009 Apple Inc. All rights reserved.

Under the copyright laws, this document may not be copied, in whole or in part, without thewritten consent of Apple.

Every eort has been made to ensure that the information in this document is accurate. Apple

is not responsible for printing or clerical errors.

Apple1 Innite LoopCupertino, CA 95014-2084USA+ 1 408 996 1010www.apple.com

Apple, the Apple logo, Mac, and Macintosh are trademarks of Apple Inc., registered in the U.S.and other countries.


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Mac mini (Late 2009)

Contents

Manual Updates 7Apple Technician Guide introduced 20 October 2009 7

Basics

Overview 10Features Late 2009 Congurations 10Product Congurations 10

System Serial Number Location 11Power Supply Serial Number Location 12

Troubleshooting

General Troubleshooting 14Update System Software 14Apple Diagnostics 14Wireless Troubleshooting 14

Troubleshooting Theory 14Hardware vs. Software 14Block Diagram 15Common Reset Procedures 16

Symptom Charts 18Startup and Power 18

No Power, Dead Unit 18Wont Start Up 20Intermittent Shutdown 22Kernel Panic, System Crashes 24No Video 26Corrupted Video 27

Burnt Smell/Odor 29Noise, Hum, Vibration 31Uncategorized Symptoms 34

Communications 35AirPort/Bluetooth Issues 35AirPort/Bluetooth Card Kernel Panic 38Ethernet Port/Device Issue 39Wireless Input Device Doesnt Pair 41


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Wireless Input Device Loses Connection 43Uncategorized Symptoms 45

Mass Storage 46Hard Drive Not Recognized 46Hard Drive Read/Write Error 48

Hard Drive Noisy 49Uncategorized Symptom- Hard Drive 52Optical Drive Not Recognized 54Optical Drive Wont Accept/Eject Media 55Optical Drive Read/Write Error 57Optical Drive Not Performing to Specications 58Optical Drive Noisy 59Uncategorized Symptoms 61

Input/Output Devices 62Apple Remote Inoperable 62Audio: Built-in Speaker Has Distorted Sound 64

Audio: Built-in Speaker Has No Audio 65FireWire Devices Not Recognized 67USB Devices Not Recognized 69Wired Keyboard Does Not Function Properly 71Keyboard: Specic Keys Do Not Respond 73Wired Keyboard/Mouse Not Recognized 73Uncategorized Symptoms 75

Mechanical 76Noise/Hum/Vibration 76System Runs Hot 78Physical Damage 79

Uncategorized Symptoms 79

Take Apart

General Information 81General Tools 81Reassembly Steps 81Screw Sizes 81Logic Board EMI Clips 82

Top Housing 83

Removal 84Reassembly 85

Top Housing, Server (Late 2009) 86Removal 87Reassembly 88

Internal Frame 89


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Removal 90Reassembly 93

Antennas 95Removal 96Reassembly 98

Memory 100

Audio Board 102Removal 103Reassembly 105

AirPort/Bluetooth Combo Card 106

IR Board and Cable 108

IR Board and Cable (Late 2009) 111

Hard Drive Carrier (Late 2009) 114

Hard Drive, Lower 116

Hard Drive, Upper (Late 2009) 119Removal 120Reassembly 120

Optical Drive 121

Fan 124

Interconnect Board 127

Interconnect Board (Late 2009) 129

Battery 131

Speaker 133

Logic Board 136Removal 137Reassembly 140

Bottom Housing 141

Views

Exploded View 143

Screw Chart 144


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Internal Views 145Front View 145Side View 1 145Side View 2 146Mac mini w/Optical 146

Mac mini Server w/Dual Hard Drives 147Port View 148


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Mac mini (Late 2009) Basics Manual Updates 72009-11-03

Manual Updates

Apple Technician Guide introduced 20 October 2009

Take Apart:New parts specic to the Late 2009 congurations:

Top Housing, IR Board, Hard Drive Carrier, Hard Drive (Upper), Interconnect Board
mailto:[email protected]?subject=Mac%20mini%20(2009)


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Mac mini (Late 2009) Basics Manual Updates 82009-11-03


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BasicsMac mini (Late 2009)

Mac mini (Late 2009) and Mac mini Server (Late 2009)


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Mac mini (Late 2009) Basics Overview 102009-11-03

Overview

This manual covers two Mac mini products developed in Late 2009:

Mac mini (Late 2009), shown on leftMac mini Server (Late 2009), shown on right

Features Late 2009 CongurationsProcessor: 2.26GHz Intel Core 2 (Better), 2.53 GHz Intel Core 2 (Best), and 2.53 GHz Intel Core2 (Server)

NVDIA GeForce 9400M graphicsMemory: 2GB (Better), 4GB (Best), 4GB (Server)

Hard drives: 160GB (Better), 320GB (Best), dual 500GB SATA (Server)Mac OS X Snow Leopard

Product Congurations

To conrm the conguration from the Apple menu, choose About This Mac. The processor

listing will show the speed of the processor followed by the processor type.

For product congurations, refer to Applecare Tech Specs: http://support.apple.com/specs/
http://support.apple.com/specshttp://support.apple.com/specsmailto:[email protected]?subject=Mac%20mini%20(2009)


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System Serial Number Location

The product serial number and Ethernet ID are located on the bottom housing.


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Power Supply Serial Number LocationLocate the power supply.1.

Look closely into the opening on the end of the power supply. The serial number is located2.on the inside cavity of the power supply, where the plug inserts into the power supply.


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TroubleshootingMac mini (Late 2009)Mac mini (Late 2009) and Mac mini Server (Late 2009)


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Mac mini (Late 2009) General Troubleshooting Apple Diagnostics 142009-11-03

General Troubleshooting

Update System SoftwareImportant: Whenever possible before beginning troubleshooting, ensure the latest softwareand rmware updates have been applied.

Apple Diagnostics

Run diagnostics to determine if any of the modules are malfunctioning.Mac mini (Late 2009): Apple Diagnostics: 3S133Mac mini Server (Late 2009): Apple Server Diagnostics: 3X106Apple Hardware Test: 3A150 (all models)

Wireless Troubleshooting

If youre having issues with AirPort and wireless mouse or keyboard connectivity issues, refer tothe following Knowledge Base articles:

Desktop computers: Troubleshooting wireless mouse and keyboard issues http://support.apple.com/kb/TS3048AirPort and Bluetooth: Potential sources of interference http://support.apple.com/kb/HT1365Apple Wireless Keyboard and Mouse: How to install batteries http://support.apple.com/kb/HT3903

Troubleshooting Theory

For general information on troubleshooting theory, refer to:

http://service.info.apple.com/service_training/en/006/troubleshoot/index.php?page=intro

Hardware vs. Software

For information on how to isolate a hardware issue from a software issue, refer to the followingarticles:

Isolating issues in Mac OS X: http://support.apple.com/kb/TS1388?viewlocale=en_USMac OS X: Troubleshooting installation and software updates: http://support.apple.com/kb/TS1394

Troubleshooting Mac OS X installation from CD or DVD: http://support.apple.com/kb/HT2956>

For information on how to troubleshoot a software issue, refer to:Mac OS X: How to troubleshoot a software issue: http://support.apple.com/kb/HT1199
http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT3903http://support.apple.com/kb/HT3903http://service.info.apple.com/service_training/en/006/troubleshoot/index.php?page=introhttp://support.apple.com/kb/TS1388?viewlocale=en_UShttp://support.apple.com/kb/TS1388?viewlocale=en_UShttp://support.apple.com/kb/HT2956http://support.apple.com/kb/HT2956http://support.apple.com/kb/HT2956http://support.apple.com/kb/HT3903http://support.apple.com/kb/HT3903http://support.apple.com/kb/HT2956http://support.apple.com/kb/HT2956http://support.apple.com/kb/TS1388?viewlocale=en_UShttp://service.info.apple.com/service_training/en/006/troubleshoot/index.php?page=introhttp://support.apple.com/kb/HT3903http://support.apple.com/kb/HT3903http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365mailto:[email protected]?subject=Mac%20mini%20(2009)


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Mac mini (Late 2009) General Troubleshooting Block Diagram 152009-11-03

Block Diagram

Refer to this diagram to see how modules are interrelated.


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Mac mini (Late 2009) General Troubleshooting Common Reset Procedures 162009-11-03

Common Reset Procedures

When a reset procedure is required for troubleshooting, follow the applicable steps:

Resetting the System Management Controller (SMC)

To reset power management via the SMC chip:

Unplug all cables from computer, including power cord.1.

Wait at least 15 seconds. The SMC reset occurs automatically once the Mac mini has been2.unplugged from AC power source for several seconds.

Plug power cord back in, making sure power button is not being pressed.3.

Reconnect keyboard and mouse to computer.4.

Press power button on back to start up computer.5.

Resetting the SMC means you will also need to reset the date and time (using the Date & Time

pane of System Preferences).

Resetting the Parameter RAM (PRAM)

To reset PRAM,

If the computer is on, turn it o.1.

Locate the following keys on the keyboard: Command, Option, P, and R. You will need to2.hold these keys down simultaneously in Step 4.

Note: If the keyboard does not have an Option key, use the Alt key instead.

Turn on the computer.3.

Press and hold the Command-Option-P-R keys.4.

Important: You must press this key combination before the gray screen appears.

Hold the keys down until the computer restarts and you hear the startup sound for the5.second time.

Release the keys.6.


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Mac mini (Late 2009) General Troubleshooting Common Reset Procedures 172009-11-03

Starting Up in Safe Mode

A Safe Boot is a special way to start Mac OS X when troubleshooting. To start up into Safe Mode(Safe Boot),

Make sure the computer is shut down.1.

Press the power button.2.Immediately after you hear the startup tone, press and hold the Shift key.3.

Note:The Shift key should be held as soon as possible after the startup tone but notbefore.

Release the Shift key when you see the screen with the gray Apple and progress indicator4.(looks like a spinning gear). During startup, Safe Boot appears on the Mac OS X startupscreen. To leave Safe Mode, restart the computer normally, without holding down any keysduring startup.

For more information:

http://www.apple.com/support

HT1564What is Safe Boot, Safe Mode?

TS1884Safe Boot take longer than normal startup
http://www.apple.com/supporthttp://support.apple.com/kb/HT1564http://support.apple.com/kb/HT1564http://support.apple.com/kb/TS1884http://support.apple.com/kb/TS1884http://support.apple.com/kb/TS1884http://support.apple.com/kb/TS1884http://support.apple.com/kb/TS1884http://support.apple.com/kb/HT1564http://www.apple.com/supportmailto:[email protected]?subject=Mac%20mini%20(2009)


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Mac mini (Late 2009) Symptom Charts Startup and Power 182009-11-03

Symptom ChartsFollow the steps in the order indicated below. If an action resolves the issue, retest the systemto verify.

Note: A compilation of Quick Check tables is available at:

http://service.info.apple.com/QRS/en/quickreference.pdf

Startup and Power

No Power, Dead Unit

Unlikely cause: speakers

Quick Check

Symptoms Quick Check

No Power, Dead UnitNo powerNo LEDNo fan spin

No startup chimeNo image on external displayNo hard drive or optical driveactivityCaps Lock LED on wiredkeyboard doesnt light whenpressed.

Verify power source.1.

Verify power cable.2.

Listen closely for signs of activity from system3.including: rotating fans, hard drive or optical drive

activity, startup chime, etc. If there is activity thengo to the Startup and Power Issues symptomow.
http://service.info.apple.com/QRS/en/quickreference.pdfhttp://service.info.apple.com/QRS/en/quickreference.pdfmailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Deep Dive

Unlikely cause: speakers

Check Result Action Code

Power ON system. Verify if1.there is any indication that thesystem has powered up (fanrotation, hard drive or opticaldrive noise, backlight turns on).

Yes The symptom is poweringup. Jump to Wont Start Upsymptom ow.

No Go to step 2.

Disconnect AC power from2.adapter for 1 minute, andreconnect. Does the systempower on when power ONbutton is pressed?.

Yes It is possible for the poweradapter to trip. After problemis identied, determine if theadapter continues to trip.Replace as needed.

Code may be a P01 (if adapteris replaced)

No Go to step 3

Does the unit power on with3.known good power adapter?

Yes Bad power adapter, replaceand retest.

P01

No Go to step 4.

Remove drive internal frame4.assembly SDRAM, and AirPort/

Bluetooth card. Connect poweradapter. When the ON button ispressed, does the LED light?

Yes Go to Wont Start Upsymptom owstep 3

P16

No Go to step 5.

Inspect power ON button for5.damage, disconnect power ONcable from logic board, andshort pins on connector. Doesthe front LED power on?

Yes Bad power switch, replacebottom housing.

X14

No Go to step 6

Disconnect LED, remove logic6.

board from bottom housing.Place the logic board on aclean non-metallic surface.Reconnect LED withoutmounting in housing, Shortthe power ON pins. Does theLED light?.

Yes Bottom Housing causing an

issue with board, examine fordefects or replace.

X13

No Replace logic board andretest.

M01
mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Wont Start Up

Quick Check


Wont Start UpNo startup chimeError tones during startup.Grey screen with fan noise, orother noise.Will not progress beyondApple logo or spinning gear.

Isolate OS by starting up from original install1.media for the computer, the same make andmodel computer in Target Disk Mode, orcompatible known-good OS on an external drive.Both AirPort and Bluetooth services are availablewhen booted from the Install disk.

Reset SMC and PRAM to clear any stored,2.corrupted information.

Start up in Safe Mode by holding the shift key3.down during startup to load only required kernelextensions and disable all startup and login

items. See KBase articlehttp://support.apple.com/kb/HT1564

If system generates error tones there may be an4.issue with the SDRAM. See KBase articlehttp://support.apple.com/kb/HT2341

Identifying when in the startup process the5.computer hangs can help isolate the issue.See KBase articlehttp://support.apple.com/kb/HT2674for information on the Macintosh startupsequence, error codes and symbols used.

Deep Dive


Boot the computer to Apple1.Hardware Test on the InstallDVD. Does the computer bootup to this volume?

Yes Run the extended testsand proceed with results. IfAHT passes or boots with amemory error, go to step 2.

No Go to step 2.

Remove the installed SDRAM,2.and test with known-goodSDRAM. Does the computerstartup properly now?

Yes SDRAM issue. Replace SDRAM.Issue resolved.

X02

No Go to step 3.
http://support.apple.com/kb/HT1564http://support.apple.com/kb/HT1564http://support.apple.com/kb/HT2341http://support.apple.com/kb/HT2674http://support.apple.com/kb/HT2674http://support.apple.com/kb/HT2674http://support.apple.com/kb/HT2341http://support.apple.com/kb/HT1564mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Remove the coin battery on3.the logic board, and leave outfor approximately 1 minute.

Then reinstall the battery. Thiswill reset the logic board. Doesthe computer startup properly

now?

Yes Issue resolved by logic boardreset. Measure DC voltageon the battery touching thebattery with the red probe,and grounding with the blackprobe. If voltage is 2.7v or less,

replace the battery. See KBasearticle http://support.apple.com/kb/HT3250 for detailson using a digital multi-meter.

M20

No Go to step 4.

Disconnect the drive carrier4.assembly and power on system.With video only connected tothe board, is there a gray screenwith a ashing folder?

Yes Go to Step 5

No Replace logic board.. M02

Attempt to boot the system5.with a known good Firewireboot drive. Does it boot?

Yes Go to Step 6.

No Replace the logic board. M02

Connect the interconnect6.board to the logic board. Isthere a gray boot screen with aashing folder?

Yes Go to step 7

No Replace the interconnectboard.

Remove the hard drives (one at7.a time) from the internal frameassembly, install the internalframe. Does the system boot(other drive may be an opticaldrive or second hard drive)?

Yes Go to step 8

No If the optical drive in notrecognized, go to OpticalDrive not recognized.

If the other hard drive in notrecognized, go to Hard DriveNot Recognized

Install hard drive and optical8.drive into the internal frameassembly, Does the systemboot the Install DVD, and seethe hard drive?

Yes Possible connection issue.Retest to verify.

No Go to Hard Drive NotRecognized.
http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250http://support.apple.com/kb/HT3250mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Intermittent Shutdown

Quick Check


Intermittent ShutdownPowers o during startup.Powers o during desktop use.Computer restartsspontaneously.Powers o when waking fromsleep.

Isolate OS by starting up from original Install1.media for the computer, the same make andmodel computer in Target Disk Mode, orcompatible known-good OS on an external drive.Both AirPort and Bluetooth services are availablewhen booted from the Install disk.


Start up in Safe Mode by holding the shift key3.down during startup to load only required kernelextensions and disable all startup and login

items. See KBase articlehttp://support.apple.com/kb/HT1564

Open System Preferences > Energy Saver >4.Schedule and make sure that a Shut Down eventis not scheduled.

Make sure that power cord is securely attached to5.the back of the computer, and is not hindered bya desk or other furniture.

Plug the computer directly into an AC outlet to6.test whether a surge protector, outlet strip, or UPSis causing the issue.

Deep Dive


Verify improper shutdown1.by opening the system.loglocated in /var/log. Filter thelog for shutdown cause. Entriesof value 0 or a negativevalue indicate an impropershutdown. Did you nd entries

of improper shutdown?

Yes Determine if user causedimproper shutdown. Useknown-good AC power cordand AC outlet. Go to step 2.

No Revisit Quick Check examplesfor possible software issues.

Check if user is runningother automating softwarethat may be shutting downsystem. Verify issue and jumpto appropriate symptomow. No repair needed undercurrent symptom ow.
http://support.apple.com/kb/HT1564http://support.apple.com/kb/HT1564http://support.apple.com/kb/HT1564mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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With known-good AC power2.cord and AC outlet, does theunit continue to shutdown?

Yes Go to step 3.

No Replace adapter P02

Disconnect the hard drive3.

power cable from the harddrive and start the machinefrom the Install DVD, the samemake and model computerin Target Disk Mode, orcompatible known-good OSon an external drive. Doesthe computer continue toshutdown? If yes, disconnectthe hard drive from theinterconnect board, boot thesystem from a known goodDVD or external drive with a

known compatible OS.

Does the computer continue toshutdown?

Yes Go to step 4.

No Possible bad software or harddrive. Go to Hard Drive NotRecognized symptom ow.

Check temperature sensor and4.run Apple Hardware Test (AHT)or Apple Server Diagnostics.Does it pass?

Yes Retest. Go to step 1 if problemcontinues.

No Go to step 5.

Replace or check aected5.sensor or assembly. Does AHTpass?

Yes Retest. Go to step 1 if problemcontinues.

No Logic board issue. Replacelogic board.

M08


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Kernel Panic, System Crashes

Quick Check


Kernel Panic, System CrashesKernel Panic on startup ordesktop use.System freeze during use.System freeze upon wake fromsleep.

Isolate OS by starting up system from original1.Install media for the computer, the same makeand model computer in Target Disk Mode, orcompatible known-good OS on an external drive.Both AirPort and Bluetooth services are availablewhen booted from the Install disk.

Ensure that all software and rmware updates2.for the computer have been installed to takeadvantage of any available bug xes.


Start up in Safe Mode by holding the shift key4.down during startup to load only required kernelextensions and disable all startup and loginitems. See KBase articlehttp://support.apple.com/kb/HT1564

Check the panic.log, located /Library/Logs/5.Panicreporter, for information in the backtracethat may give clues about the kernel panic.

For more information on kernel panics refer to6.KBase articlehttp://support.apple.com/kb/HT1392

Deep Dive


Boot the machine to Apple1.Hardware Test on the InstallDVD, OR, boot Apple Serverdiagnostics by holding downthe D key. Does the computerboot up to this volume?

Yes Run the extended tests andproceed with results. If AHTpasses or boots with a kernelpanic, go to step 2.

No Go to step 2.

Remove all peripheral devices2.including the keyboard andmouse. Does computer startwithout kernel panic?

Yes Add peripheral devices one ata time until the kernel panicrepeats. Replace the devicecausing the issue.

No Go to step 3.
http://support.apple.com/kb/HT1564http://support.apple.com/kb/HT1564http://support.apple.com/kb/HT1392http://support.apple.com/kb/HT1392http://support.apple.com/kb/HT1564mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Use known-good SDRAM in3.the system. Does the computerstart without kernel panic now?

Yes Install users SDRAM and test.If kernel panic repeats, replaceSDRAM. Verify that the correctSDRAM is being used.

X01

No Go to step 4.

Remove AirPort /Bluetooth card4.and test. Does the computerstart without kernel panic now?

Yes Go to AirPort Card KernelPanic symptom ow.

No Go to step 5.

Disconnect the Hard Drive from5.internal frame assembly andstartup to the Install DVD onthe optical drive, or an externalvolume. Does the computerstart without kernel panic now?

Yes Go to Hard Drive NotRecognized symptom ow.

No Go to step 6

Disconnect the Audio Board6.and test. Does the computerstart without kernel panic now?

Yes Replace the Audio Board X99

No Go to step 7.

Disconnect the Optical Drive7.from the internal frameassembly and test. Does thecomputer start without kernelpanic now?

Yes Go to Optical Drive notrecognized symptom ow

No Replace logic board.


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No Video

Unlikely cause: hard drive, optical drive, speakers, camera, microphone

Quick Check


No VideoNo image.

Check display connections1.

Check connections for pin damage.2.

Reset SMC.3.

Go to Deep Dive.4.

Deep Dive: No Video


Verify boot chime present and1.fans running when systempowered ON. (Reset SMC andclear PRAM if necessary forproper boot up.)

Yes Power ON self test OK. Bootsequence started.Go to step 2.

No Go to Wont Start Upsymptom ow.

Connect supported external2.display via mini display port.Verify whether image appearson external display whensystem is booted.

Yes Video present. Verify systemfunctionality and return touser or jump to appropriatetroubleshooting ow.

No Go to step 3.

Connect supported external3.display via mini-DVI port. Verifywhether image appears onexternal display when system isbooted.

Yes External display detected bysystem. Video circuitry onlogic board functional. Returnto customer or jump toappropriate troubleshootingow.

No Replace logic board. Retest. M03


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Corrupted Video

Unlikely cause: Adapter, hard drive, optical drive, fan, or speaker.

Quick Check


Corrupted VideoText and graphics appear fuzzyImage corrupted

Set System Preferences/Display LCD panel to1.native resolution. Non-native resolutions areunable to produce optimal clarity.

Make sure all relevant software updates have2.been applied. Graphics driver updates may beincluded with software updates.

When the issue occurs take a screenshot of the3.display (Command-Shift-3). View the screen shotle on another known-good computer. If the

image corruption can be seen in the screenshotthen the issue is with the video drivers, software,or video/logic board. If the issue cannot be seenin the screenshot then the display and cableshould be tested further.

Boot from install DVD or another known-good4.volume to determine whether a potentialsoftware/driver issue exists.

Go to Deep Dive.5.

Deep Dive


Boot from Install DVD and1.verify whether issue is stillvisible.

Yes Go to step 2.

No Issue likely caused bysoftware or driver issue.

Troubleshoot for softwareissues. Make sure all softwareupdates have been installed.

Verify whether issue is visible2.on an external display attached

to the DisplayPort or Mini-DVI. Does the issue appear onother display port?

Yes Issue is isolated to one type ofdisplay port. Go to step 3.

No Go to step 5.


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Inspect display connector and3.display cables. Reseat. Does theissue persist?

Yes Replace Logic board.Go to step 4.

M04

No Issue likely caused by poorconnection. Return computerto user.

Verify whether issue is still4.present with replacement logicboard installed.

Yes Go to step 5.

No Issue resolved withreplacement logic boardinstalled. Return system tocustomer.

Test with another similar5.display with same displayconnection to determine if

issue persists?.

Yes Replace logic board, may beincompatible with the display.Go to step 4.

M04

No Issue resolved withreplacement logic board.Return system to customer.


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Burnt Smell/Odor

Unlikely cause: speakers, microphone, housing

Quick Check


Burnt Smell/OdorBurning smellUnusual odor

Verify source of smell/odor is emanating from the1.system.

Refer to KBase articles:2.http://support.apple.com/kb/TA22044 orhttp://support.apple.com/kb/TA22045.

Disconnect all third party devices and conrm3.whether the odor is being generated by thedevice.

Inspect air intake and air outlets for obstructions.4.

To prevent overheating make sure thereis sucient clearance to allow air to owunobstructed into and out of the system.

Verify whether system is functional.5.

Go to Deep Dive.6.

Deep Dive


Verify whether the source of1. the odor can be identiedby visually inspecting eachmodule and its associatedcables for signs of burned ordamaged components, smokeresidue, burned traces, ormelted or damaged wiring,

Yes Replace aected module(s).Go to step 2 P08

No Unable to locate source of odor. Go to step 3.

Disconnect all 3rd party devices2.and cables. Power ON systemand verify whether smoke orstrong odor returns.

Yes Power down systemimmediately. Go to step 3.

No System functions correctly.

Verify system functionalitywith 3rd party devices andcables and return systemto user if problem has beenresolved. Consult 3rd partycompanies as needed forissues with those products.
http://support.apple.com/kb/TA22044http://support.apple.com/kb/TA22044http://support.apple.com/kb/TA22045http://support.apple.com/kb/TA22045http://support.apple.com/kb/TA22045http://support.apple.com/kb/TA22044mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Can the source of the odor be3.located using nose?

Yes Replace aect module(s) andretest system.

P08

No Contact Apple for assistanceif you feel that there is apossible safety issue with thecomputer that has not beenresolved in the previous steps.


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Noise, Hum, Vibration

Unlikely cause: enclosure, cables.

Quick Check


Noise/Hum/VibrationBuzzing noiseRattling noise

Ticking noiseSqueaking

Verify that the vents on the bottom and1.back of the system are free of dust and otherobstructions that might inhibit proper airowthrough the system.

Launch Applications/Utilities/Activity Monitor.2.Determine whether an application or process isconsuming a high percentage of CPU bandwidth.CPU intensive applications can cause the fansto run fast in order to maintain the properinternal system temperatures. If needed, quit the

application or restart the system to resolve theissue.

Eject optical media from optical drive. Out of3.balance optical media can generate audiblenoise. To resolve try a dierent brand of media.For additional information jump to Optical DriveNoisy symptom ow.Disconnect all third partydevices and conrm whether the odor is beinggenerated by the device.

Play sound sample at loud and soft volume4.levels to determine if the noise is caused by thespeaker or the amplier circuit. Jump to Distortedsound from built-in speakers symptom ow foradditional information.

Go to Deep Dive.5.


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Deep Dive


Run Apple Hardware Test or1.Apple Server Diagnostics. Wasan error generated?

Yes Suspect possible fan orsensor error. Check fancable connection to the

interconnect board.

No Go to step 2.

Does noise sound like fan2.running faster than expected?

Yes Reset SMC by disconnectingpower cord for ~15 secondsthen retest. If issue continues

go to step 3.

No Go to step 5.

Does the noise change when3.the optical drive is beingaccessed or media is insertedor ejected?

Yes Suspect issue with opticaldrive or the media beingused. Jump to Optical DriveNoisy symptom ow foradditional information.

No Go to step 4.

Mute the system volume. Verify4.whether the issue still occurs.

Yes Go to step 5.

No Suspect issue with speakeror audio circuitry. Jumpto Distorted SoundFrom Internal Speakerssymptom ow for additionalinformation.

Remove fan and rotate the5.blades. Verify that fan bladesspin smoothly withoutinterference from fan housing.

Yes Go to step 6.

No Replace fan. P04


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Reinstall fan while carefully6.ensuring that the cable isrouted properly and theresno interference with the fanblades. After reassemblingsystem verify that the noise

issue is resolved.

Yes Noise issue resolved. Suspectissue cause by interferencefrom wiring or possibledistortion or fan housingwhen installed in system.Proper reassembly resolved

issue.

P04

No Go to step 7.

Disconnect these major7.modules/parts (e.g: hard drive,optical drive, fan) one at a timethen power ON the system.Determine if noise issue goesaway when one of the modules

is disconnected.

Yes Identify, inspect, and if necessary replace the partthat caused the noise todisappear when it wasdisconnected from thesystem.

P04

No All parts veried. Verify thatthe correct symptom ow isbeing used.


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Uncategorized Symptoms

Quick Check


Uncategorized SymptomsUnable to locate appropriatesymptom code.

Make sure system is plugged into a known-good1.outlet.

Listen for boot chime, fan, optical drive, or hard2.drive noise which indicates system is poweringup. If noise is heard, go to Wont Start Upsymptom ow. If no noise is heard go to NoPower symptom ow.

Attempt to boot from Install DVD to isolate3.possible software issues.

Deep Dive


Verify whether existing1.symptom code applies to theissue reported by the user.

Yes Jump to appropriatesymptom code ow.

No Document reported failureand send feedback [email protected] that a suitablesymptom code wasnt found.Provide as much detail aspossible.

N99
mailto:[email protected]?subject=Mac%20mini%20(Early%202009)mailto:[email protected]?subject=Mac%20mini%20(Early%202009)mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Mac mini (Late 2009) Symptom Charts Communications 352009-11-03

Communications

AirPort/Bluetooth Issues

Note: If one antenna fails, all 3 antennas must be replaced because they are paired. Order kit076-1337.

Quick Check


AirPort/Bluetooth IssuesUnable to join networks or pairdevicesCard not available

Intermittent device orconnection dropoutsLimited wireless range

Verify that AirPort or Bluetooth is turned ON and1.for AirPort issues make sure that a network isselected.

For AirPort, check if the wireless access point2.

requires special connection and encryptionprotocols.

Check for nearby sources of interference such as3.microwave ovens or cordless phones. See article

Check the number of users trying to use AirPort4.in the area for possible network congestion(available bandwidth).

Isolate potential OS issues by starting up from the5.original Install media for the computer, the samemake and model computer in Target Disk Mode,

or compatible known good OS on an externaldrive. Both AirPort and Bluetooth services areavailable when booted from the Install disk.
http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365mailto:[email protected]?subject=Mac%20mini%20(2009)


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Deep Dive


Open System Proler. AirPort1.is listed under Network, whileBluetooth is listed under USB. IsAirPort/Bluetooth recognized?

Yes Install all software updatesfor AirPort/Bluetooth. AirPort,go to step 3. Bluetooth, go tostep 4

No Remove and reinstall theAirPort/Bluetooth card andretest. Examine the exibleAirPort/Bluetooth cable fordamage, and reseat. If cableis damaged, go to step 7.

If still unrecognized, replacethe AirPort/Bluetooth card. Goto step 2

M11

Ensure that Antenna cables2.are connected properly andnot damaged, and all softwareupdates available for AirPort/Bluetooth have been installed.Do connection issues persist?

Yes AirPort, go to step 3.Bluetooth, go to step 4

No Issue resolved.

Create a computer to computer3.network with anotherMacintosh computer usingAirPort. See article . Can youconnect successfully?

Yes Network or channel issue.Go to step 5

No Double check any passwordrequired. Try connectinganother known good

computer to the network.If test computers connect,replace the AirPort card. Goto step 6

M11

Make sure that your Bluetooth4.device is in discoverable mode,and that your computer is alsoin discoverable mode. Can yousuccessfully and reliably pair adevice now?

Yes Issue resolved.

No Replace the AirPort/Bluetoothcard. Go to step 6

M11

Try connecting to a known5.

good network that does notrequire password or has MACaddress ltering enabled. Canyou connect to a networkreliably now?

Yes Troubleshoot local network.

Possible password or MACaddress ltering issue.

No Replace the AirPort/Bluetoothcard.Go to step 6

M11
http://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlmailto:[email protected]?subject=Mac%20mini%20(2009)


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With the AirPort/Bluetooth card6.replaced and antenna cablesinspected for damage andreplaced if necessary, are theconnection issues resolved?

Yes Issue resolved.

No Replace the logic board M11

Replace the wireless ex cable,7. and retest. Is Airport/Bluetoothrecognized?

Yes Issue resolved.

No Go to step 2.


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AirPort/Bluetooth Card Kernel Panic

Note: If one antenna fails, all 3 antennas must be replaced because they are paired. Order kit076-1337.

Quick Check


AirPort/Bluetooth Card KernelPanic

Kernel Panic on startupKernel Panic or freezing whileattempting to connect to Wi-FinetworksKernel Panic while transferring

data on Wi-Fi networks

Isolate OS by starting up from original Install1.media for the computer, the same make andmodel computer in Target Disk Mode, orcompatible known good OS on an external drive.AirPort and Bluetooth services are available whenbooted from the Install disk.

Ensure that all software and rmware updates for2.the computer and AirPort been installed.

Deep Dive


Remove AirPort/Bluetooth card.1.Does computer start withoutkernel panic?

Yes Reseat AirPort/Bluetoothcard and retest. If problemcontinues replace AirPortcard. Go to step 2

No Possible logic board issue.Go to Kernel Panic/Systemcrashes symptom.

With replacement AirPort/2.Bluetooth card installed, doescomputer start without kernelpanic?

Yes AirPort/Bluetooth card issue.Issue resolved.

N13

No Possible logic board issue.Go to Kernel Panic/Systemcrashes symptom.
http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-http://-/?-mailto:[email protected]?subject=Mac%20mini%20(2009)


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Ethernet Port/Device Issue

Unlikely cause: Adapter, hard drive, optical drive, fan

Quick Check


Ethernet Port/Device IssueNo Ethernet device presentUnable to access networkresourcesEthernet device shows noconnectionEthernet device unable to an IPaddressSlow network performance

Check the ethernet cable for damage, try a1.known good Ethernet cable CAT5 or betterrecommended for 100Mbps+ connections.

Check Ethernet ports on the Mac and wall/switch2.for dust, debris, damage or bent pins.

Ensure distance from networking infrastructure is3.less than 300 feet/ 105 meters

Verify port, cable and network hardware with a4.known good system. Isolate rewall, MAC address

ltering or hardware access control devicesIsolate OS by starting up from original Install5.media for the computer, the same make andmodel computer in Target Disk Mode, orcompatible known good OS on an external drive.

Deep Dive


Visually inspect the ethernet1. port of the computer to ensurethat all pins will make physicalcontact with the CAT5 Ethernetcable

Yes Go to step 2

No Pins are damaged, bent at ormissing. Replace logic board

M24

Boot from original Install media.2.Verify Network Link statusactive by using Network Utilityunder the Info tab. Is the LinkStatus Active?

Yes Go to step 3

No If same ethernet cable givesan Active link status ona known good computerof same make and model,replace logic board

M10


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Connect the computer to3.another Macintosh computerusing CAT5 ethernet cable.Mac OS X 10.5 users see article.Mac OS X 10.6 users see article.

Can you connect successfully?

Yes Ethernet communicationgood. Go to step 4

No If same ethernet cable andcomputer connects to aknown good computer of

same make and model,replace logic board

M10

Check for speed and duplex4.issues on the network. OpenSystem Preference > Network;click the Advanced button,then the Ethernet tab. Is thespeed and duplex reportedwhat is expected?

Yes Go to step 5

No Change the speed and duplexsettings. See article . Go to step 6

Check for MTU (Maximum5.Transmission Unit) issues.See article . Doeschanging the MTU settings onthe computer resolve the issue?

Yes Go to step 6

No Ethernet controller damaged.Replace logic board.

M10

If changing the speed,6.duplex or MTU settingsallows connectivity, checkwith another computer ofsame make and model. Doesthe known good computerproduce the same results?

Yes Check with ISP or NetworkAdministrator concerningspeed, duplex and MTUsettings.

No Verify with known good OS. If the issue persists, replace thelogic board.

M10
http://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://support.apple.com/kb/HT2532http://support.apple.com/kb/HT2532http://support.apple.com/kb/HT2532http://support.apple.com/kb/HT2532http://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=AirPort/5.0/en/ap2110.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlhttp://docs.info.apple.com/article.html?path=Mac/10.5/en/8429.htmlmailto:[email protected]?subject=Mac%20mini%20(2009)


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Wireless Input Device Doesnt Pair

Quick Check


Wireless Input Device DoesntPair

Cant get system to recognizethe Bluetooth keyboard ormouse

Remove and reinstall the batteries for the device.1.

Check that device is powering on.2.

Use known-good batteries with the device.3.

Ensure that device is being used within range. 304.ft. for Bluetooth devices.

Ensure that the latest Software Updates have5.been applied.

Deep Dive


Without any wired input1.devices connected, start thecomputer. Does the computershow the Bluetooth MouseSetup assistant?

Yes Bluetooth hardware is active.Go to step 4

No Inspect and reseat AirPort/Bluetooth ex cable toAirPort/Bluetooth card.Replace a damaged cable. Goto step 2

X03

Restart the machine without2.any wired input devicesattached. Does the computershow the Bluetooth MouseSetup assistant?


No Reseat the AirPort/Bluetoothcard to the logic board. Go tostep 3

Restart the machine without3.any wired input devicesattached. Does the computershow the Bluetooth MouseSetup assistant?


No Replace the AirPort/Bluetoothcard.

M11

With a wireless mouse on, and4.in discoverable mode, can yousuccessfully pair the mousewith the assistant?

Yes Check for stability. Go to step5

No Go to Wireless Device LosesConnection symptom


42/148


With the wireless mouse5.paired, does the mouse stayconnected?

Yes Issue resolved

No Inspect and reseat theBluetooth antenna cable.Replace damaged antennacable or AirPort/Bluetooth

card if the antenna connectoris damaged. Go to step 6

X03

With the wireless mouse6.paired, does the mouse stayconnected?

Yes Antenna issue. Issue resolved.

No Go toWireless Device LosesConnectionsymptom


43/148


Wireless Input Device Loses Connection

Quick Check


Wireless Input Device LosesConnection

Wireless keyboard, mouse, orother wireless input deviceloses connection.

Remove and reinstall the batteries for the device.1.

Check that device is powering on.2.

Use known-good batteries with the device.3.

Ensure other devices pair and keep connection4.without issue. If not, see AirPort/Bluetooth:Defective Wireless Device symptom.

Ensure that device is being used within range, 305.feet for Bluetooth devices.

Ensure that the latest Software Updates have6.been applied.

Deep Dive


Open System Preferences >1.Bluetooth. Paired items andtheir connection status areshown. Is the device listed?

Yes Device has been paired. Go tostep 2

No The device is not paired. Makedevice discoverable and openBluetooth Setup Assistant. Go

to step 3

Make sure device is on.2.In System Preferences >Bluetooth, select the deviceand from the Action menu(gear) choose Connect.Does the device connectsuccessfully?

Yes Go to step 7

No Delete pairing in SystemPreferences. Go to step 3

With the device on, run the3.Bluetooth Setup Assistant.Can you successfully pair thedevice?

Yes Go to step 7

No Restart the machine. Go tostep 4

With the device on, run the4.Bluetooth Setup Assistant.Can you successfully pair thedevice?

Yes Go to step 7

No Create a new Admin User. Goto step 5


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Log into new Admin User5.account. With the deviceon, run the Bluetooth SetupAssistant. Can you successfullypair the device with the NewUser?

Yes User-based issue.Troubleshoot software onUser account. No repairneeded.

No Remove the following le: /Library/Preferences/com.apple.Bluetooth.plist Go tostep 6

Restart the computer, With the6.device on, run the BluetoothSetup Assistant. Can yousuccessfully pair the device?

Yes Go to step 7

No Go to AirPort/Bluetooth:Defective Wireless Devicesymptom

With the device paired and7.connected, is the deviceconnection stable if used

normally?

Yes Issue resolved

No Check device documentation

on standard length ofoperation, and otheroperational factors. Go tostep 8

Is the device performing to8.stated specications?

Yes Educate User. Issue resolved.

No Replace device.


45/148



Quick Check


Uncategorized SymptomsUnable to locate appropriatesymptom code.

Verify System Preferences/Network settings1.are congured appropriately to supportcommunication method.

For Ethernet connection issues verify that the2.cable being used functions when used withanother known good system.

For wireless connection issues review user3.environment to determine whether possibleinterference from other 2.4GHz communicationsdevices might be contributing to issue.http://support.apple.com/kb/HT1365

Deep Dive




No Document reported failureand send feedback [email protected]

stating that a suitablesymptom code wasnt found.Provide as much detail aspossible.

N99
http://support.apple.com/kb/HT1365http://support.apple.com/kb/HT1365mailto:[email protected]?subject=Mac%20%20mini%20(2009)mailto:[email protected]?subject=Mac%20%20mini%20(2009)http://support.apple.com/kb/HT1365mailto:[email protected]?subject=Mac%20mini%20(2009)


46/148

Mac mini (Late 2009) Symptom Charts Mass Storage 462009-11-03

Mass Storage

Hard Drive Not Recognized

Unlikely cause: AC adapter, fan, speaker.

Quick Check


Drive Not Recognized (H01)Drive No Boot (H02)

Flashing Question MarkBoots to Grey ScreenBoots to Blue Screen

Use a known good mouse. A stuck mouse button1.will not allow boot.

Boot from Install DVD or external drive. Verify2.S.M.A.R.T. status of drive using Disk Utility.

Repair disk using Disk Utility.3.

Erase disk and reinstall Mac OS.4.

Use Target Disk Mode to attempt to mount5.users hard drive on a known good computer. Ifmounted, use Disk Utility on host computer forQuick Checks 2, 3 and 4.

Deep Dive


Boot from Install DVD or1.external drive and run DiskUtility. Verify that user harddrive is available for Disk Utilityto repair.

Yes Go to step 2

No Go to step 5

Run Disk Utility Repair Disk2.function and verify that itcompletes successfully.

Yes Go to step 3

No Go to step 4

Reboot computer. Verify that3.system boots successfully and

that Disk utility Verify functionreports no errors.

Yes Data error Issue resolved.Return computer to user.

H07

No Go to step 4.

Erase disk and reinstall Mac OS4.using Install DVD or externaldrive with an installer on it.Verify that installation processcompletes.

Yes Go to step 8

No Go to step 5


47/148


Inspect hard drive, interconnect5.board, and connectors for bentpins, or other damage to thecable.

Yes Replace interconnect board.Go to step 8

H04

No Go to step 6

Reseat interconnect board,6. hard drive and logic boardconnections and verify whethercomputer starts up

Yes Go to step 8No Replace interconnect board,

go to step 8H04

Test with known good hard7.drive. Verify that system bootssuccessfully and that Disk utilityVerify function reports noerrors.

Yes Install user drive, go to step 9

No Interconnect board veriedor replaced and known goodHard drive installed, replacelogic board.

Reboot computer. Verify that8.system boots successfully andthat Disk utility Verify functionreports no errors.

Yes Issue resolved. Return systemto user.

No Go to step 7


Yes Issue resolved

No Hard drive appears to bedefective. Go to step 10

Replace hard drive. Does drive10.format correctly with a GUID

partition map and install MacOS without errors?

Yes Issue resolved by replacinghard drive.

H05

No Interconnect board veriedor replaced and known goodHard drive installed, replacelogic board..


48/148


Hard Drive Read/Write Error

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

Quick Check


Drive Read/Write Error (H03)Drive Bad Sector/Defective (H05)Drive Formatting Issues (H07)

Cannot save documentsRead/write error messageHang when accessing or savingdata

Boot from Install DVD or external drive. Verify1.S.M.A.R.T. status of drive using Disk Utility.


Erase disk and reinstall Mac OS using Install DVD3.or external drive.

Use Target Disk Mode to mount users hard drive4.on a known good computer. Use Disk Utility onhost computer for Quick Checks 1 through 4.

Deep Dive



Yes Go to step 2

No Go to step 3

Reboot computer. Verify that2.system boots successfully andthat Disk utility Verify function

reports no errors.

Yes Data error Issue resolved.Return computer to user.

H07

No Go to step 3Erase disk and reinstall Mac OS3.using Install DVD or externaldrive. Verify that installationprocess completes.

Yes Go to step 7

No Go to step 4

Inspect interconnect board4.connector for bent pins, orother damage to the board..

Yes Replace interconnect board.Go to step 7

H04

No Go to step 5

Reseat interconnect board,5.

hard drive and logic boardconnections and verify whethercomputer starts up

Yes Go to step 7

No Replace interconnect board,go to step 7

H04


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Test with known good hard6.drive. Verify that system bootssuccessfully and that Disk utilityVerify function reports noerrors.

Yes Install user drive, go to step 8

No Interconnect board veriedor replaced and known goodHard drive installed. Replacelogic board.


Yes Issue resolved. Return systemto user.

No Go to step 6


Yes Issue resolved

No Hard drive appears to bedefective Go to step 9

Replace user hard drive. Does9.drive format correctly with aGUID partition map and installMac OS without errors?

Yes Issue resolved by replacinghard drive.

No Interconnect board veried orreplaced and new hard driveinstalled. Replace logic board.

Hard Drive Noisy

Unlikely cause: LCD panel, logic board, power supply, speakers, camera, microphone

Quick CheckSymptoms Quick Check

Hard Drive Noisy (H06)Noise during start upNoise during operationNoise when drive is copying orsaving data

Start up from Install DVD. Verify S.M.A.R.T. status1.of drive using Disk Utility.


Determine if noise is comparable to another3.machine of the same model.


50/148


Deep Dive


Boot from Install DVD or1.external drive and run DiskUtility. Verify that user hard

drive is available for Disk Utilityto repair.

Yes Go to step 2

No Go to H01 Drive not

recognized/mount


Yes Go to step 3

No Go to step 4

Re-start the computer. Verify3.whether the noise is stillpresent.

Yes Go to step 6

No Data error issue resolved byDisk Utility. Return system touser.

H06

Erase disk and reinstall Mac OS4.using Install DVD or externaldrive. Verify that installationprocess completes. Note: Makesure data has been backed upbefore erasing hard drive.

Yes Go to step 3

No Replace hard drive. Go tostep 5

H06

With replacement hard drive5.installed reboot computer.Verify whether noise is stillpresent.

Yes Go to step 6

No Issue resolved by replacinghard drive.

Reboot computer. Verify6.whether noise is still present.

Yes Replace hard drive. Go tostep 7.

No Reseat hard drive into internalframe. Return system to user.

H06

With hard drive removed, boot7.from the Install DVD or externaldrive and determine if thenoise is caused by the fan inthe computer.

Yes Go to M18 fan failures/thermal issues..

No Go to step 8


51/148


With hard drive removed and8.no media in the optical drive,boot from an external volumeand determine if the noise iscaused by media in the opticaldrive.

Yes Go to J04 Optical Drive Noisy.

No Go to step 9.

With replacement hard drive9.installed verify whether noiselevel is noticeably quieter thancustomers hard drive.

Yes Customer hard drive noiselevel is similar to a knowngood one and does notrequire repair.

No Replace customers hard drive.Return system to customer.

H06


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Uncategorized Symptom- Hard Drive

Quick Check


Uncategorized SymptomUnable to locate appropriatesymptom

Start up the computer holding down the D key1.on the keyboard to see if Apple Hardware Test onthe hard drive will boot. If so, run the diagnosticor Apple Server Diagnostics. This will tell you thehard drive is working.

Try starting the system to Apple Hardware Test2.on the Install DVD or Apple Server Diagnostics. Ifso, run the diagnostic. This will tell you that theoptical drive is working.

Start the computer holding down the Option3.key on the keyboard. If the Startup Manager

is recognizing internal hard drive and opticaldrive (if Install DVD is in the optical drive) andany external bootable drives connected to thesystem, SATA connections and external ports arecommunicating with the logic board.

Remove SDRAM and install Known Good SDRAM4.and start system. This will verify the SDRAM is notthe cause of a startup issue.

Using Disk Utility on Install DVD or external drive5.to verify SMART status on the hard drive andrepair directory structure. This will tell you thatthe optical drive is working, and will verify your

hard drive status and directory.Boot from another computer of same type in6.

Target Disk Mode, or from an external FireWiredrive with compatible Mac OS. This will tell youthat your logic board is communicating properlywith a compatible Mac OS.


53/148


Deep Dive-Uncategorized Symptoms


Verify whether an existing1.symptom chart applies to the

issue reported by the customer.

Yes Jump to appropriatesymptom chart ow.

No Document reported failuresymptom and send feedbackto smfeedback2@applestating that a suitablesymptom code could not befound.
mailto:[email protected]?subject=Mac%20mini%20(2009)mailto:[email protected]?subject=Mac%20mini%20(2009)mailto:[email protected]?subject=Mac%20mini%20(2009)mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


54/148


Optical Drive Not Recognized

(For systems with optical drives)

Quick Check


Drive Not Recognized/Mount(J05)

Discs inject and eject, but donot appear in Finder

Use Apple System Proler Serial-ATA section to1.see if the optical drive appears.

Apple System Proler Serial-ATA section will show2.any media inserted.

Check Finder Preferences and make sure CDs,3.DVDs and iPods is checked under Show theseitems on the desktop in the General section.

Check both CD and DVD media. If only one type4.of media is recognized, there is a laser issue.

Replace optical drive (J03).

Deep Dive


Is the optical drive listed in the1.Serial-ATA section of the AppleSystem Proler?

Yes Go to step 2

No Go to step 3

Test both CD and DVD media.2.

Can drive read both CD mediaand DVD media?

Yes Go to step 6

No Drive has a laser issue.Replace the optical drive. Ifboth types media fail, checkFinder Preferences then go tostep 3

J03

Reseat interconnect board at3.logic board and optical drive.Do both types of media readreliably now?

Yes Go to step 6

No Go to step 4

Connect known good optical4.drive to interconnect board. Doboth types of media reliablyread now?

Yes Interconnect board and porton logic board good. Go tostep 5

No Replace interconnect boardand test (X03). If issue persists,replace logic board (M19). Goto step 6


55/148


Connect original optical drive5.to known good interconnectboard. Do both types of mediareliably read now?

Yes Interconnect board issue.Replace Interconnect board .Go to step 6

X03

No Replace optical drive. J03

Test read compatible known6.good CD and DVD media(Install DVD). Verify media isrecognized and reads reliably.

Yes Issue resolved.


Optical Drive Wont Accept/Eject Media

Quick Check


Drive Wont Accept Media (J01)Drive Wont Eject Media (J02)

Cannot insert a disc into thedrive

Cannot eject a disc placed intothe drive

Use Apple System Proler Serial - ATA section to1.see if the optical drive appears. If not see OpticalDrive not recognized (J05).

Restart computer and hold down mouse button2.or keyboard eject key to cycle optical drive.

Inspect optical drive slot for obstructions3.

Deep Dive


Verify that optical drive is listed1.in the System Proler devicetree for Serial-ATA devices.

Yes Optical drive communicatingwith logic board. Go to step 5.

No Logic board notcommunicating with opticaldrive. Go to step 2

Verify all connection between2.logic board, interconnect board,and optical drive are secure.Visually inspect connectors forany debris, damage or bentpins. Verify that the opticaldrive is listed in the SystemProler device tree.

Yes Go to step 5.

No Replace interconnect boardand retest. If connectionsare good and with no visibleboard damage, go to step 3

X03


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Connect known good optical3.drive to interconnect board.Verify that known good opticaldrive is listed in the SystemProler device tree.

Yes Go to step 4.

No Suspect interconnect board.Go to step 7

With known good optical drive4. installed, test for media inject/eject. Verify drive accepts andejects known good media.

Yes Known good optical driveresolved inject/eject issue.Replace optical drive.

J03(J06)

No Go to step 7

Inspect optical drive slot during5.disc insert/ eject. Verify thatdiscs can be inserted easily.

Yes Go to step 6

No Replace damaged opticaldrive..

J03(J06)

With known good optical6. media (Install disc), test formedia inject/eject. Does driveaccept and eject known goodmedia?

Yes Media issue. No repairnecessary. Suggest userinvestigate use of dierentmedia.

No Go to step 3

Replace interconnect board7.with known good opticalmedia (Install disc), test formedia inject/eject. Does driveaccept and eject known goodmedia?

Yes Issue resolved. Interconnectboard damaged

X03

No Interconnect board veriedor replaced, and optical driveveried or replaced. Replace

logic board and retest.

M19


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Optical Drive Read/Write Error

Quick Check


Drive Read/Write Data Error (J03)Errors when writing opticalmedia.Errors when reading opticalmedia.Hang when accessing orpreparing to write data.

Test optical media in another drive of the same1.type in the same type of computer to rule outmedia issue.

Check with known good discs like the Install discs2.that came with the computer.

For write issues, check with known good media3.that performs well in another computer opticaldrive of the same type.

Check both CD and DVD media. If only one type4.of media is producing errors, there is a laser issue.Replace optical drive (J03).

Deep Dive


Is media free to spin without1.optical drive scraping edge orsurface of media?

Yes Go to step 2

No Replace optical drive J05

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. Ifboth types media fail, go tostep 3

J03

Reseat interconnect board3.connections at logic board andoptical drive. Do both types ofmedia read reliably now?

Yes Go to step 6

No Go to step 4

Connect known good optical4.drive to interconnect board. Doboth types of media reliably

read now?

Yes Interconnect board on logicboard good. Go to step 5

No Interconnect board connectoron logic board is bad. Replacelogic board.

M19


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Yes Interconnect board issue.Replace interconnect board.Go to step 6

X03


Test write data to compatible6.CD and DVD media. Verifyburned media is recognizedand reads reliably.

Yes Issue resolved.


Optical Drive Not Performing to Specications

Quick Check


Optical Drive Not Performing toSpecications (J07)

Read or write speeds slowerthan expected

Test optical media in another drive of the same1.type in same type of computer to rule out mediaissue.

For Write issues, check with Known Good media2.that performs well in another computer and driveof the same type.

Check both CD and DVD media. If only one type3.of media is producing errors, you have a laserissue. Replace the optical drive (J05)

Deep Dive


Test both CD and DVD media.1.Can drive read both CD mediaand DVD media?

Yes Go to step 6

No Drive has a laser issue.Replace the optical drive. Ifboth types media fail, go tostep 3

J03

Reseat Interconnect board to2.logic board and optical drive.Do both types of media readreliably now?

Yes Go to step 6

No Go to step 4


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Connect known good optical3.drive to Interconnect board. Doboth types of media reliablyread now?

Yes Interconnect boardconnections on logic boardgood. Go to step 5

No Replace Interconnect boardand test (X03). If issue persists,

replace logic board (M19). Goto step 6


Yes Interconnect board issue.Replace interconnect board.Go to step 6

X03


Test write data to compatible5.CD and DVD media. Verifyburned media is recognized

and reads reliably.

Yes Issue resolved.

No Go to step 7 J03

The balance of some media6.may not perform at higherspeeds supported by the drive.Does slowing the requestedburn speed allow the discs towrite reliably?

Yes Media issue. No repairnecessary.


Optical Drive Noisy

Quick Check


Optical Drive Noisy (J04)Noise during bootNoise during operationNoise when drive is copying orwriting data

Test optical media in another drive of the same1.type in same type of machine to rule out mediaissue.

Check with Known Good Discs like the Install2.disks that came with the computer.

Check to see if noise occurs without media in the3.

drive. If so, check hard drive (H06) and fan (M18)caused noise.


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Deep Dive


Optical drive should perform1.a single reset sequence. Isoptical drive constantly seekingor cycling eject mechanismwithout an optical discinstalled??

Yes Drive mechanism damaged.Replace optical drive.

J05

No Go to step 2

Verify media does not2.exceed maximum thicknessspecication Using known good CD andDVD media, does media spinwithout optical drive scrapingedge or surface of media?

Yes Go to step 3

No Drive mechanism damaged.Replace optical drive.

J05

Noise when spinning discs3.before mounting on thedesktop and reading data isnormal. Disc spin should cease30 seconds after mounting onthe desktop. Is the noise relatedto disc spin and is it louderthan another computer of thesame type and drive?

Yes Go to step 4

No Go to step 5

Remove the optical drive and4. reseat the drive into its drivebracket. Reinstall the drive andverify if the drive is still noisy.

Yes Drive mechanism damaged.Replace optical drive. J04

No Optical drive not mountedcorrectly. Issue resolved

Noise when ejecting media5.is normal. Eject known goodmedia and listen to noises.Is the noise related to ejectactivity and is it louder thananother computer of the same

type and drive?.

Yes Drive mechanism damaged.Replace optical drive.

J04

No Noise not related to opticaldrive. Check for hard drivenoise (H06) or fan noise (M18)
http://support.apple.com/kb/HT2446http://support.apple.com/kb/HT2446http://support.apple.com/kb/HT2446http://support.apple.com/kb/HT2446http://support.apple.com/kb/HT2446mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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No Document reported failureand send feedback [email protected] that a suitablesymptom code wasnt found.Provide as much detail aspossible.

N99
mailto:[email protected]?subject=Mac%20mini%20(2009)mailto:[email protected]?subject=Mac%20mini%20(2009)mailto:[email protected]?subject=Mac%20mini%20(Early%202009)


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Mac mini (Late 2009) Symptom Charts Input/Output Devices 622009-11-03

Input/Output Devices

Apple Remote Inoperable

Unlikely cause: Adapter, fan, optical drive, hard drive

Quick Check


Apple Remote InoperableApple Remote doesnt bring upFront RowApple Remote doesnt controliTunes

Apple Remote doesnt controlcomputer volume

Make sure youre using the Apple Remote within1.30 ft of the computer, and have an unobstructedline-of-sight to the computer.

Make sure youre pointing the lens end of2.the Apple Remote directly at the front of the

computer.Make sure Disable remote control infrared3.receiver checkbox in the Security

Test with a known good USB cable when dealing4.with a printer or external USB drive, to isolate aUSB cable issue.

Ensure that all available Software Updates have5.been applied to the computer for access to thelatest bug xes.

Deep Dive


Open System Preferences >1.Security. Is Unpair available inthis preference pane?

Yes Click the Unpair button todisable possible pairing withanother Apple Remote. Go tostep 3

No Possible IR board issue. Go tostep 4

With a replacement battery, can2.

you see a white ashing lightfrom the Apple Remote in thevideo preview window now?

Yes Battery issue. Issue resolved X05

No Apple Remote defective.Replace the Apple Remote.

X04

After clicking Unpair, does the3.computer now respond to theApple Remote?

Yes Pairing issue. Issue resolved

No Possible IR board issue. Go tostep 4


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Open the Apple System Proler.4.Selecting USB, do you see IRReceiver listed?

Yes IR Receiver reporting on USBbus. Check for lens block. Goto step 5

No Inspect and reseat IR cable toIR board. Replace a damagedIR cable. Go step 6

After clearing lens, does the5.computer now respond to theApple Remote?

Yes Lens blocked. Issue resolved.

No Lens damaged or inoperable.Replace the IR Receiver or tophousing.

X13

After reseating or replacing the6.IR cable, does the computernow respond to the AppleRemote?

Yes IR cable issue. Issue resolved X03

No IR board failure. Replace the IRReceiver.


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Audio: Built-in Speaker Has Distorted Sound

Quick Check


Audio: Built-in Speakers HaveDistorted Sound

No audio from one or bothspeakers.Audio from speakers distorted

Launch System Preferences and select Sound/1.Output options. Verify that the sound outputoption is set to systems internal speakers andthat the balance control is set to the centerposition.

Obtain known good high quality sound le2.or use iTunes music store sound samples toevaluate sound quality. Verify suspect sound leson another system to determine whether thedistortion is caused by the system or the soundle.

Set volume control to mid-range. Overdriving the3. built-in speakers can cause distortion.

Deep Dive


Launch System Preferences and1.select Sound/Output options.Set speaker balance to themiddle, then play a sound le.Verify that sound is generatedby the speaker and that thesound quality is acceptable.

Yes Speaker and ampliercircuitry OK. Go to step 3.

No Distortion detected inspeaker. Go to step 2

Connect external speakers or2.headphones to HeadphoneOut port then play a soundle. Verify that sound quality isacceptable.

Yes Suspect bad speaker. Go tostep 3.

No Audio CODEC or amplierissue suspected. Replaceaudio board. Retest.

M09

Inspect speaker cones and3.speaker connection cable fordamage. Does the speaker havevisible damage.

Yes Replace damaged speaker.Retest.

M09

No Go to step 4.


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Install known good speaker4.into location where distortedsound was heard. Verify thatsound quality improves.

Yes Speaker bad. Replace speakerand retest.

M09

No Suspect speaker amplier.Replace audio board.

M09

Audio: Built-in Speaker Has No Audio

Quick Check


Audio: Built-in Speakers Have NoAudio

No audio from speaker.

Audio from speaker distorted

Launch System Preferences and select Sound/1.Output options. Verify that the sound outputoption is set to systems internal speaker.

Launch System Preferences and select Sound/2.Output options. Verify that the Output Volumesetting is set above the minimum level and thatthe mute option is not selected.

Launch System Preferences and select Sound/3.Output options. . Verify that Balance is set tomiddle position

Reseat PRAM.4.

Go to Deep Dive..5.

Deep Dive


Verify whether boot chime1.is present when system ispowered ON. Note: make sureaudio output preferences arenot set to mute and volume isset to mid-range.

Yes Go to step 2

No Audio board not detected bysystem. Reseat audio board,then retest. Replace audioboard if problem persists.

M09

Launch System Preferences and2.select Sound/Output options.Set speaker balance to themiddle, then play a sound le.Verify that sound is generatedby the speaker and that thesound quality is acceptable..

Yes Speaker and ampliercircuitry OK. Go to step 3.

No Go to step 6.


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Verify whether customer3.reported audio issue has beenresolved.

Yes Issue no longer present.Return system to customer.

No Go to step 4.

Boot system from Install DVD or4.another known good bootablevolume. Verify whether issuestill occurs.

Yes Go to step 5.

No Known good boot volumeworks OK. Troubleshootfor software issue. Isolatewhether issue is applicationspecic or whether possibleoperating system conict.Make sure user data backedup before removing orreinstalling software.

Connect external speakers5. to Headphone Out portand set System PreferencesSound/Output to externalspeakers, then play a soundle. Verify that sound quality isacceptable.

Yes Audio board, internal speaker,and external headphone portfunctioning correctly. Returnsystem to user.

No Go to step 6

Disconnect and carefully6.inspect exible cable andconnectors connecting audioboard to logic board fordamage such as bent pins or

pinched/cut wires.

Yes Replace damaged part(s)then retest. Return to step1 if problem continues toverify whether symptom haschanged.

M09

No Replace audio board thenretest.

M09


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FireWire Devices Not Recognized

Quick Check


FireWire Devices Not RecognizedFireWire external drive notrecognizedFireWire printer not recognized

For external FireWire drives, make sure any1.external power source is plugged in andoperating to isolate a power issue with thedevice.

Test with a known good FireWire device to isolate2.a failed peripheral issue.

Test with a known good FireWire cable to isolate3.a FireWire cable issue.

Ensure that all available Software Updates have4.been applied to the computer for access to thelatest bug xes.

Deep Dive


Unplug all FireWire devices1.from the computer. Start thecomputer and reset PRAM.Reconnect the FireWire devicein question. Is the FireWiredevice recognized?

Yes Issue resolved

No Possible logic board failure.Go to step 2

Use a known good FireWire2.cable with a known goodFireWire device (anotherMac in FireWire Target Diskmode is good). Is this devicerecognized?

Yes Try the FireWire device inquestion with a known goodcomputer of the same makeand model. Go to step 3

No FireWire not recognized.Replace main logic board.

M12

Is the FireWire device3.recognized on a known goodcomputer of the same makeand model?

Yes Test the FireWire device witha known good cable on userscomputer. Go to step 4

No FireWire device may needadditional power. Use apowered FireWire hub. Go tostep 5


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Is the FireWire device4.recognized with a known goodFireWire cable on the userscomputer?

Yes FireWire cable issue. Issueresolved.

No FireWire device may needadditional power. Use apowered FireWire hub. If theissue persists, check for anyrmware updates f

Mac Mini Late09

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