If the computer won’t turn on or start up | Apple iMac G5 specs

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•If that doesn’t work, unplug the power cord from the computer. Then plug the power cord back in and press the power button (®) on the computer to turn it on.

If the problem occurs frequently when you use a particular application, check with the application’s manufacturer to see if it is compatible with your computer.

For support and contact information about the software that came with your computer, go to www.apple.com/guide.

If the problem occurs frequently, you may need to reinstall your system software (see “Reinstalling the Software That Came With Your Computer” on page 59).

If the computer freezes during startup or you see a flashing question mark

•Wait a few seconds. If the computer doesn’t start up after a delay, shut down your computer by pressing and holding the power button (®) for about 5 seconds, until the computer shuts down. Then hold down the Option key and press the power button (®) again to start up your computer. When your computer starts up, click the hard disk icon, then click the right arrow.

•After the computer starts up, open System Preferences and click Startup Disk. Select a local Mac OS X System folder.

•If the problem occurs frequently, you may need to reinstall your system software (see “Reinstalling the Software That Came With Your Computer” on page 59).

If the computer won’t turn on or start up

•Make sure the power cord is plugged into the computer and into a functioning power outlet.

•If that does not work, press the power button (®) and immediately hold down the Command (x), Option, P, and R keys until you hear the startup sound a second time.

•If you recently installed additional memory, make sure that it is correctly installed and that it is compatible with your computer. See whether removing it allows the computer to start up (see page 41).

•If that does not work, unplug the power cord and wait at least 30 seconds. Plug the power cord back in and press the power button (®) again to start up your computer.

•If you are still unable to start up your computer, see the service and support information that came with your iMac G5 for information on contacting Apple for service.

Chapter 5 Troubleshooting

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Apple iMac G5 manual If the computer won’t turn on or start up

Contents

User’s Guide Apple Infinite Loop Contents Other Problems TroubleshootingProblems That Prevent You From Using Your Computer Using Apple Hardware Test 1Getting Started Getting Started Getting Started What’s Next? Using a Wireless Keyboard and MouseSetting Up Your iMac G5 for the Internet Transferring Information to Your iMac G5 Put Your iMac G5 to Sleep to Save Energy What to Do When You Have Finished Using Your iMac G5Additional Information Shut Down Your iMac G5Page 2Getting to Know Your iMac G5 For the Latest Information IMac G5 Front View Getting to Know Your iMac G5 Built-in speakers IMac G5 Back View Audio line in port Learning About Mac OS Customizing Your Desktop and Setting Your Preferences Connecting to a Printer To set up a printer Keeping Your Software Up to Date Playing a CD and Connecting HeadphonesMonitoring Printing Using the Internet Connecting a Camera or Other FireWire DeviceConnecting to a Network Transferring Files to Another Computer When an Application Freezes To force an application to quit Using Applications Getting Answers to Your Questions Using Mac OS HelpTo use Mac OS Help 3Using Your Computer Using USB Devices Universal Serial Bus USB Using Multiple USB Devices at the Same Time For More Information on USB FireWire These are some of the things you can do with FireWire FireWire Target Disk Mode Using FireWire DevicesFor More Information on FireWire AirPort Extreme Wireless Internet and Networking How AirPort Provides Wireless Internet Access To set up a Bluetooth device Bluetooth Wireless TechnologySetting Up Bluetooth File Exchange To set up a Bluetooth file exchange For More Information on Bluetooth Wireless Technology Setting Up Bluetooth ConnectionsSending a File to a Bluetooth Enabled Device To set up a Bluetooth device to work with your computer For More Information on Using Ethernet Ethernet 10/100Base-T Headphone Out/Optical Audio Out Port Audio SupportAudio Line In Port For More Information on Using Audio External Video Support VGA, Composite, and S-Video For More Information on Using an External Display or TV Connecting an External Display or ProjectorConnecting a Television, VCR, or Other Video Device To connect a TV, VCR, or other video device to the iMac G5 Using Your Optical Drive Inserting a CD or DVD Disc Recording CD-R and CD-RW Discs Ejecting a DiscPlaying DVD Discs For More Information Recording Information on a DVD To record data to a DVD-R disc using the FinderKeyboard Controls To burn an iDVD project to a blank DVD Securing Your Computer Page Installing Additional Memory 4Enhancing Your Computer To install a memory module Enhancing Your Computer Inch iMac Screwdriver Tighten 3 screws Making Sure Your Computer Recognizes the New Memory Installing an AirPort Extreme Card To install an AirPort Extreme Card in your iMac G5 Enhancing Your Computer Connect the antenna to the AirPort Extreme Card Phillips Replacing the Internal Backup Battery To replace an internal backup battery in your iMac G5 Enhancing Your Computer Remove old battery Cut-out Metal clip Insert new battery Phillips Enhancing Your Computer Page Problems That Prevent You From Using Your Computer If the computer won’t respond or the pointer won’t move If the computer won’t turn on or start up Installing Mac OS X and Applications Reinstalling the Software That Came With Your ComputerInstalling Applications If you have a problem with an application Other ProblemsInstalling Mac OS If you have trouble using AirPort wireless communication Locating Your Product Serial Number If you have problems with your Internet connectionIf your date and time settings get lost repeatedly If you have trouble ejecting a disc Using Apple Hardware Test To use Apple Hardware Test Specifications Page To clean your iMac G5 screen, do the following Cleaning Your iMac G5 DisplayCarrying Your iMac G5 Safety Instructions for Setting Up Using Your Computer Appendix B Care, Use, and Safety Information Connectors and Ports Avoid Hearing Damage Ergonomics Apple and the Environment Display There are four kinds of Internet connections Before you connect to the Internet To find the settings on a Mac OS 9 computer To find the settings on a Mac OS X computerTo find the settings on a Windows PC To set up a DSL or cable modem or a LAN connection Setup Assistant WorksheetSelect how your computer connects to the Internet If you selected Using DHCP, enter the following IP Address Subnet Mask Router Address Setting Up Your Internet Connection Manually To set up Network preferences for the internal modem port Dial-Up Connection To test your Internet configuration DSL, Cable Modem, or LAN Internet Connections To set up Network preferences for the built-in Ethernet port Manual Configuration To set up a manual configuration Dhcp Configuration To set up a Dhcp configuration PPPoE Configuration To set up a PPPoE connection Appendix C Connecting to the Internet Setting Up an AirPort Extreme Connection Manually AirPort Extreme Wireless ConnectionTo check if you have access to an AirPort Extreme network Appendix C Connecting to the Internet To test your AirPort Extreme connection Cable Modem, DSL, and LAN Internet Connections Troubleshooting Your ConnectionPPPoE Connections Network Connections FCC Compliance Statement Bluetooth InformationIndustry Canada Statement Exposure to Radio Frequency Energy Vcci Class B Statement European CommunityLaser Information Mouse Class 1 LED Information Disposal and Recycling Information Telephone and Apple 56K Modem Information Information You Need in Canada Information You Need in the United Kingdom Page Index Index Using multiple devices at once