Apple mac mini User Manual

22 - Mac mini Troubleshooting
 Symptom Charts
2. On the older model, check that the Bluetooth antenna is securely connected to the 
Bluetooth board.
3. Make sure that the mezzanine board is properly seated on the logic board.
4. Reassemble the computer and test. If the Bluetooth board is still not recognized, test  with a known good Bluetooth board. If the known good board is recognized, replace 
the Bluetooth board or the AirPort/Bluetooth combo card on the new Mac mini. 

Mac mini Troubleshooting - 23
 Symptom Charts 5. Replace the mezzanine board and test the computer again.
6. Replace the logic board. 
The Mac mini recognizes a Bluetooth board, but cannot pair with wireless 
devices.
If the Mac mini recognizes the Bluetooth board, but you are unable to pair your Apple 
Wireless Keyboard and Wireless Apple Mouse, try the steps outlined in Knowledge Base 
article 86496: Apple Wireless Keyboard and Mouse: Troubleshooting Connection Issues.
1. Make sure that the Bluetooth...

24 - Mac mini Troubleshooting
 Symptom Charts
Battery
The computer won’t keep date and time, the date and time reset when the 
computer is powered off or unplugged
1. Make sure the electrical outlet works by plugging in a different device, or plug the 
computer into a different outlet.
2. Check the power cord. Use a known good power cord.
3. Check the connection of the power cord on both ends. Make sure that the plug is  securely plugged into both the electrical outlet and the back of the computer.
4....

Mac mini Troubleshooting - 25
 Symptom Charts
Error Beeps
The computer automatically performs a power-on self test when it is turned on after being 
fully shut down (not a restart). This section describes what to do if beeps are heard during 
the startup.
Computer beeps at startup
1. Check that the memory DIMM is compliant. The Mac mini computers have a single 
memory slot. The slot accepts a standard PC2700 or PC3200 184-pin DIMM with the 
following specifications:
• PC2700 or PC3200 Synchronous DRAM...

26 - Mac mini Troubleshooting
 Symptom Charts
Optical Drive
The optical disc drive does not accept discs (mechanical failure)
1. Verify disc is not warped.
2. Try another known-good disc.
3. Reseat the optical drive to the interconnect board.
4. Replace optical drive.
5. Replace the interconnect board
6. Replace the logic board.
The disc icon does not show up on the desktop, or a dialog box appears to 
initialize disc
1. Verify the correct type of disc is being used for the type of drive (a CD-ROM or...

Mac mini Troubleshooting - 27
 Symptom Charts
Hard Drive
Hard drive fails to boot to the desktop
1. Boot from Mac mini Mac OS X Install DVD and see if the hard drive mounts on the 
desktop.
2. Run Apple Hardware Test (AHT), located on the install DVD.
3. Run Disk Utility and correct any directory and permissions issues.
4. Erase and reformat the drive.
5. Verify that the hard drive is firmly connected to the interconnect board.
6. Try a known-good hard drive.
7. Erase and reformat the original drive.
8....

28 - Mac mini Troubleshooting
 Symptom Charts
System hangs during normal startup process
1. Boot from the Mac mini Mac OS X Install DVD that came with the computer and see if 
the hard drive mounts on the desktop.
2. Run Apple Hardware Test (AHT), located on the install DVD.
3. Run Disk Utility and correct any directory and permissions issues.
4. Verify that the hard drive is connected to the interconnect board.
5. Try a known-good hard drive.
6. Erase and reformat the original drive.
7. Try a...

Mac mini Troubleshooting - 29
 Symptom Charts
Keyboard
No response from any key on the USB keyboard
1. Check that the mouse and keyboard are compliant. The Mac mini has two USB 2.0 
ports, which can be used with any USB 1.1- or USB 2.0-compliant keyboard and 
mouse. 
2. Remove any connected peripherals.
3. Boot from the Mac mini Mac OS X system DVD to verify that it is not a software  problem.
4. Disconnect the keyboard connector and inspect connectors.
5. Replace the keyboard.
6. Replace the logic...

30 - Mac mini Troubleshooting
 Symptom Charts
Modem
No modem dial tone
1. Check that the internal modem is selected. Check System Preferences: Network 
setup.
2. Verify known-good analog (not digital) telephone line.
3. Verify known-good RJ-11 telephone cable.
4. Verify RJ-11 cable is not plugged into Ethernet port.
5. Inspect RJ-11 connector and modem port for pin damage. 
6. Verify RJ-11 telephone cable is firmly installed in the modem port.
7. Verify RJ-11 connector is plugged into the modem board on...

Mac mini Troubleshooting - 31
 Symptom Charts
Ports
The FireWire or USB port is not recognizing devices
1. Completely shut down, then press the power button to start the computer.
2. Use Software Update in Mac OS X system preferences to verify that the latest 
software is installed.
3. Use Apple System Profile to verify that the computer is recognizing the bus.
4. For USB, test ports with a compliant keyboard or mouse.
5. For FireWire, test by connecting another computer in FireWire Target Disk Mode....