Apple power mac g4 agp graphics User Manual

 Troubleshooting Symptom Charts/Sound -  5 3
Sound
No sound from 
computerÕs internal 
speaker1 Disconnect any microphones or external speakers.
2 Verify the volume is set appropriately in the Sound system 
preference or Sound control panel and mute is not checked. 
3 Mac OS 9: Start up with all third-party extensions off. 
Troubleshoot the extensions.
4 Clear parameter RAM. Hold down Command-Option-P-R 
during startup until you hear a second startup chime. 
5 Verify the speaker cable is plugged into the...

 Troubleshooting Symptom Charts/Sound -  5 4
No sound from Apple 
Pro Speakers when 
attached to a Power 
Mac G4 (Digital 
Audio/QuickSilvers) 
computer1 Push on the Apple Pro Speaker jack to make sure it is firmly 
inserted into the Apple Speaker sound output port. (The Apple 
Pro Speaker jack has two detents. You should feel them as you 
push the jack into the sound output port. Giving the jack a 
slight twist while inserting it into the port may make a 
better connection.)
2 Verify the speaker volume...

 Troubleshooting Symptom Charts/Hard Drive -  5 5
Hard Drive
Single internal ATA 
hard drive does not 
spin; flashing 
question mark 
displays on screen1 Check all cable connections to the hard drive.
2 Try another power connector on the power cable harness. If 
the power cable is defective, replace the power supply.
3 Replace the hard drive. If the problem is resolved, make sure 
the driver and system software are updated to the most recent 
versions.
No internal SCSI 
drives show up on the 
desktop 1...

 Troubleshooting Symptom Charts/ CD/DVD Drives -  5 6
CD/DVD Drives
CD/DVD drive tray 
wonÕt open 1 Reseat the drive data and power cables on the back of the CD/
DVD drive. 
2 Verify the CD/DVD drive bezel is properly seated. 
3 Reseat the drive data cable on the logic board. 
4 Try using a known-good disc.
5 Replace the CD/DVD drive.
CD/DVD drive icon 
does not appear on the 
desktop1 Check to see if the CD/DVD drive shows up in Apple System 
Profiler. If it does, go to step 2. If the drive does not...

 Troubleshooting Symptom Charts/Zip Drive -  5 7
Zip Drive
Zip drive does not 
show up on desktop1 Check that the Zip drive shows up in Apple System Profiler. 
If it does, go to step 2. If it does not, go to step 6.
2 Mac OS 9: Make sure the driver is turned on in Extensions 
Manager. 
3 Replace the Zip disk with a known-good disk.
4 Check that the Zip drive shows up in Apple System Profiler 
as ID = 1 (slave). If it does not, check the connector. There 
should be no jumper on the 6-pin device settingÕs...

 Troubleshooting Symptom Charts/Zip Drive -  5 8
Zip disk ejects 
immediately after 
being inserted1 Replace the Zip disk with a known-good disk.
2 Reseat the drive data and power cables on the back of the Zip 
drive. 
3 Check that the Zip drive shows up in Apple System Profiler 
as ID = 1 (slave). If it does not, check the connector. There 
should be no jumper on the 6-pin device settingÕs connector.
4 Reinstall system software.
5 Replace the drive data cable.
6 Replace the Zip drive.
Zip disk does not...

 Troubleshooting Symptom Charts/USB Devices -  5 9
USB Devices                                                                                    
At startup, cursor 
does not move with the 
Apple mouse1 Verify that mouse and keyboard connections are secure.
2 Mechanical mouse: Inspect the inside of the mouse for buildup 
of dirt or other contaminants. Clean the mouse if necessary. 
See Knowledge Base article 6491.
3 If the mouse is connected to the keyboard, connect the mouse 
to one of the USB ports on...

 Troubleshooting Symptom Charts/USB Devices -  6 0
No response to any 
key on keyboard1 Verify that keyboard and mouse connections are secure.
2 Remove all USB devices, except the keyboard and mouse. If 
the keyboard operates correctly, troubleshoot the other USB 
devices.
3 Switch the keyboard to a different USB port. If the keyboard 
operates correctly, the first port was bad. Replace the logic 
board. 
Note: You can also use Apple System Profiler to verify 
USB ports.
4 Mac OS 9: Start up with...

 Troubleshooting Symptom Charts/USB Devices -  6 1
USB printer does not 
operate1 Verify that connections to the printer and computer are 
secure.
2 Switch the printer to a different USB port. If the printer 
operates correctly, the first port was bad. Replace the logic 
board. 
Note: You can also use Apple System Profiler to verify 
USB ports.
3 Verify the correct versions of the system software and 
printer driver are installed.
4 Mac OS X: Use Print Center to verify that you have the 
correct printer...

 Troubleshooting Symptom Charts/FireWire Devices -  6 2
FireWire Devices
No external FireWire 
device icon appears on 
the desktop1 Verify that the FireWire device is turned on and the FireWire 
cable is securely connected to the device and the computer.
2 If the device requires external power, make sure it is plugged 
in.
3 Check that the FireWire device is listed in Apple System 
Profiler. If it is, go to step 4. If it is not, go to step 5.
4 Check the FireWire device documentation to see if additional...