Reset the PMU with the Top Housing Off
You can also reset the PMU by directly pressing the PMU reset switch located on the logic board. Follow these steps to access the PMU reset switch on the logic boar 1. Unplug all cables from the computer. 3. If necessary, remove the internal frame to access the battery. 4. Measure the voltage of the battery in the battery holder. The battery should measure 2.6V to 3.0V. If the battery does not have minimum voltage, replace the battery. After replacing the battery, wait 10 seconds and then reset...
Exploded View
Optical Drive 661-3438, Combo, 24x, Slot 661-3464, Super Drive, 4x - Power Adapter, External 661-3463 Optical Drive 661-3438, Combo, 24x, Slot 661-3464, Super Drive, 4x 661-3440, 80 GB, 2.5 661-3439, 40 GB, 2.5 661-3465, 512 MB DDR 400 661-3466, 256 MB, DDR 400 Logic Board 661-3461, 1.25 GHz 661-3462, 1.42 GHz 661-3440, 80 GB, 2.5 661-3439, 40 GB, 2.5 661-3465, 512 MB DDR 400 661-3466, 256 MB, DDR 400 Logic Board 661-3461, 1.25 GHz 661-3462, 1.42 GHz Bottom Housing with Thermal Pad 076-1163
Modify the Putty Knife
1. If you don't order a modified putty knife 922-6761 from Apple Service, purchase a putty knife with a 1.5-inch 38 mm , flexible metal blade. 2. Using sandpaper 150 grit , file down the end of the putty knife on one side until it's slightly beveled. Rub the edge of the putty knife back and forth for about 2 minutes on
The computer wont turn on
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. Disconnect the keyboard, mouse, and all other peripherals such as speakers. 5. Remove the top housing and if necessary, remove the internal frame. 6. Measure...
Replacement Procedure Btb
1. Connect the optical drive to the interconnect board and replace the two interconnect board screws. 4. Replace the four optical drive screws. 5. Replace the Bluetooth antenna if present . 6. Replace the AirPort antenna if present .
The Mac mini wont turn on
1. Make sure that the power cord is plugged into a working wall outlet, and that it's properly connected to the power adapter. To check if the wall socket is working, plug in a lamp or other electrical device. 2. Make sure that the power adapter is properly connected to the power port on the back of the computer. 3. Disconnect all accessories that are plugged into the computer, such as a printer, hub, or iPod. 4. Reset the PMU. Refer to Reset the PMU mentioned in this chapter. 5. Try plugging a...
A USB device not recognized by computer
Note If you are trying to use a serial device with a USB Serial adapter, check with the manufacturer of the adapter for compatibility. 1. Completely shut down, then press the power button to start the computer. 2. Try known-good compliant USB keyboard or mouse to verify the port is working properly. 3. Verify current driver for the device is installed. 4. If the device is a camera, turn on camera after initiating download with camera application. 7. Try different USB device on same port. 8....
The internal hard drive does not spin
1. Disconnect any connected peripherals. 2. Try known-good power outlet. 4. Boot from a Mac mini Mac OS X Install DVD. 5. Run Apple Hardware Test AHT , located on the install DVD. 6. Run Disk Utility and correct any directory and permissions issues. 7. Verify that the hard drive is connected to the interconnect board. 8. Try a known-good hard drive. 9. Erase and reformat the original drive. 10. Try a known-good interconnect board. 12. Replace interconnect board. System hangs during normal...
Distorted sound from speakers
1. Check balance in System Preferences Sound Output. Verify sound is correct with external speakers headphones 2. Check that speakers are inserted correctly, and check cables for damage. 3. Compare same sound with two different units to make sure that sound is actually distorted. 4. Remove the top housing and internal frame. 5. Check that the speaker is seated correctly and screwed to the internal frame. 6. Check for speaker cable damage and that the cable is securely connected to the...
Computer does not retain parameter RAM PRAM settings
1. If the computer does not retain parameter RAM PRAM settings when it is turned off, this generally indicates that the battery needs to be changed. 2. Measure the voltage of the battery in the battery holder see graphic below . The battery should measure 2.6V to 3.0V. If the battery does not have minimum voltage, replace the battery. After replacing the battery, wait 10 seconds and then reset the PMU refer to Reset the PMU mentioned in this chapter . 3. If the battery voltage is good, reset...
Preliminary Steps
Warning Always shut down the computer before opening it to avoid damaging its internal components or the components you are installing. Do not open the computer or attempt to install items inside it while it is on. 2. Unplug all external cables from the computer except the power cord. 3. Touch the metal case to discharge any static electricity from your body. Important Always discharge static before you touch any parts or install any components inside the computer. To avoid generating static...
Take Apart
The following tools are required to service the computer Jeweler's 0 Phillips screwdriver Jeweler's 1 Phillips screwdriver Black stick 922-5065 , or other nonconductive nylon or plastic tool Soft cloth to protect removed parts from scratches Putty knife 922-6761 ,1.5 inch 38 mm , flexible blade
Compatible Apple Displays
The Mac mini has a DVI-I port on the back of the computer that allows you to connect any display that uses a DVI interface. In addition, the Mac mini comes with a DVI to VGA adapter shown below , if you prefer to connect a VGA monitor to your Mac mini. If you connect a DVI monitor to the Mac mini, it can display digital resolutions up to 1920 x 1200 pixels, depending on your monitor. If you use the included DVI to VGA adapter, the display port supports analog resolutions up to 1920 x 1080...
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. Refer to article 58583 How to Use FireWire Target Disk Mode. 6. Verify that drivers are installed...
Thermal Pad Mac Mini G4 Pc
The thermal pad is located on the bottom housing. A new thermal pad is included with the logic board and the bottom housing, and the pads can be ordered separately as a kit part the logic board or the bottom housing is replaced the pad is torn, withered, or damaged Important Never use thermal paste in place of the thermal pad. You must replace the thermal pad with a new identical pad. 1. Remove the original pad from the bottom housing or the logic board using a black stick or other...