If your computer’s performance decreases | Apple 8500 manual

If your computer’s performance decreases

If you notice a decrease in your computer’s speed and general performance after you add special software like a control panel, system extension, or custom utility, it may be because this software does not work well with Power Macintosh computers.

mTo find out if a system extension or control panel is the problem, use the Extensions Manager control panel to turn off system extensions. Next, use the Extensions Manager control panel to turn the system extensions and control panels back on one at a time, restarting and checking your computer’s performance each time until you identify the software that is causing problems. Contact the software’s manufacturer for information or an upgrade.

mTo find out if a custom utility you’ve added is the problem, drag it out of the System Folder. (This software may be in the Control Panels folder or elsewhere inside the System Folder.) Next, restart your computer and check its performance. If there’s an improvement, the new software was probably the cause of the problem. Contact the software’s manufacturer for information or an upgrade.

If you still do not notice an improvement, follow the instructions in “Installing or Reinstalling System Software” later in this chapter to reinstall system software on your startup hard disk.

Troubleshooting 103

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Apple 8500 manual If your computer’s performance decreases

Contents

User’sGuide Apple Computer, Inc Contents Getting Help Connecting Additional Equipment 155 Installing or reinstalling CD-ROM software 125129 145 Radio and television interference FCC statement Vcci statement CD-ROM drive DOC statementPage Welcome to Power Macintosh Page Chapter Chapter Getting Started Getting HelpPage Getting Started Apple PlainTalk Microphone optional Computer power cord Monitor power cordMonitor Mouse Plugging in the computer Place the monitor next to the computer Installing an expansion cardConnecting a monitor Connecting the monitor power cord Plug in the monitor power cord Connect the monitor power cord to the monitorOn some monitors, the cord is already attached On some monitors, the cable is already attached Connecting the monitor cableAttach the monitor cable to the monitor Connecting a keyboard with a built-in cable Connecting the mouse and keyboard Connecting a keyboard with a separate cable Turning the computer on Connecting other equipmentTurn on your monitor Chapter Check to see what’s on your screen Hard disk icon Macintosh desktop Problems turning your computer on? What’s next? Slide your mouse along your mouse pad or desk Learning the basics Chapter Menus Reviewing the basicsMenu Icons Window Windows Icons Saving energy with the Energy Saver control panel Setting energy-saving options Scheduling automatic startup and shutdown Accessing a sleeping computer over a networkPutting your computer to sleep Waking your computer from sleep Turning the computer off Using the Power keyFollowing dialog box appears on the screen Using the Shut Down command Getting Started Where to find answers Getting Started Page Getting Help Getting answers to your questions Macintosh Guide window, click the Topics button Getting answers with the Topics button Read and follow the instructions in this window Click Setting Options in the list of topicsSmall window appears with instructions for you to follow Now continue with the next section Macintosh Guide window, click the Index button Getting answers with the Index button Read and follow the instructions in the window Macintosh Guide window, click the Look For button Getting answers with the Look For button If you want to close Macintosh Guide, click here Tips for using Macintosh Guide Identifying objects on the screen Main Macintosh Shortcuts window appears Learning useful shortcutsClick one of the category buttons Chapter Your computer at a glance Connecting Additional Equipment CD-ROM drive Optional Monitor Power-on light Green lightSpeaker Optional ADB port Keyboard or a trackball Audio input ports Scsi port ² Power socket Ethernet port AauiAccess covers for Monitor port Video output port Connecting audio equipmentAbout your computer’s A/V panel ¾ S-video input port About your computer’s sound ports Computer’s sound ports accept these 3.5 mm connectors Place the audio equipment near the Macintosh Connecting most audio equipment Turn on the computer and the audio equipment Connecting and positioning a microphone Turn on the computer Assemble the speakers and the cable you need Connecting external stereo speakersIf the speakers take a dual-plug cable, connect both plugs Your finished connections should look something like this Connecting video equipment Composite video connectors Video connectors Audio cable with dual RCA connectors plugs at each end Connecting video equipment for input to the computer Video connection for input from a VCR Follow the directions that came with the VCR or camera Composite video connection for input from a VCR Turn on the computer and the VCR or camera Composite video connection for input from a camera Audio cable with dual RCA connectors plugs at both ends Connecting video equipment for output from the computerAssemble the VCR and cables you need Video connection for output from the computer Follow the directions that came with the VCR Composite video connection for output from the computer Television used as a monitor with an S-video connection Using a television as a monitor Chapter Connecting external Scsi devices Before you connect a device Scsi terminator Expanding memory Connecting a Scsi device Installing internal drives About Macintosh networking Connecting network cables Connecting Additional Equipment Page Installing application programs Installing and Using Application Programs Chapter Working with several programs at a time Finding out which programs are open Switching programsHiding and showing windows on the desktop Backing up your files Using Power Macintosh application programsSpecial memory requirements Shared libraries Using the Optional CD-ROM Drive Tray opens Inserting a CD-ROM disc Take the CD-ROM disc out of the tray Ejecting a CD-ROM discPress the Open/Close button for your CD-ROM drive Open the tray Playing audio CDs Working with Photo CDs Sharing a CD-ROM disc over a network IIpart TroubleshootingPage If you have trouble When you have questions Take your time Select Restart from the dialog box that appears Start over Desktop is rebuilt Rebuild your desktop regularlyWhile holding down the Space bar, restart your computer Computer is turned on but the screen is dark Solutions to common problems Computer’s clock keeps time inaccurately Troubleshooting Hard disk icon does not appear on the desktop Sad Macintosh icon appears, and the computer won’t start up Your Macintosh can’t read a floppy disk Icons do not appear correctly on your screenYou can’t eject a floppy disk Chapter Troubleshooting Dialog box with a bomb appears Pointer 8 doesn’t move when you move the mouse Typing on the keyboard produces nothing on the screen Troubleshooting You experience problems using an older Macintosh program You experience problems using a document from a DOS computer Problems using the CD-ROM drive Solutions to CD-ROM problemsCD-ROM drive icon does not appear on screen Tray of your CD-ROM drive won’t open Problems using CD-ROM discs You can’t open a document on a CD-ROM disc Problems playing audio CDs Problems using ISO 9660 or High Sierra discs You are unable to record sound from an audio CD Problems using Photo CDsYour CD-ROM drive will not open Photo CDs If your computer’s performance decreases Obtaining updated Apple software Solving printer problems EWorld AppleLink Chapter Internet Apple Computer Higher Education gopher server CompuServe Internet ftp.support.apple.com Internet ftp.info.apple.comEach time you open a folder, a new Macintosh window opens Initializing a hard disk When do you need to initialize a hard disk? Turn your computer on Starting up from a CD-ROM discStarting up from a floppy disk CD-ROM disc will remain in the CD-ROM drive Open the Drive Setup icon How to initialize a hard diskList of drives, click the disk you want to initialize Disks can become damaged by repeated use and handling Repairing a damaged diskWhen do you need to repair a disk? Try these suggestions first List of drives, click the disk you want to test How to test a hard disk Open the Disk First Aid icon How to repair a hard disk or floppy disk Click Repair to begin testing and repairing the disk If Disk First Aid cannot correct the problemClick the icon of the disk you want to test When should you install system software? Installing or reinstalling system softwareWhen should you reinstall system software? List of drives, click your startup disk Installing system softwareYou use the Drive Setup program to update your hard disk Find and open the Disk First Aid icon Click OK Easy Install dialog box appears Doing a clean installation of system software To do a clean installation, follow these steps Click the Install New System Folder button and click OK Hold down Shift-x-K to start the clean installationFollowing dialog box appears Click Clean Install It takes a few minutes to complete the installation Replacing special software Doing a custom installation Choose Custom Install from the pop-up menu Restart your Macintosh Installing or reinstalling CD-ROM softwareWhen should you install or reinstall CD-ROM software? Installing or reinstalling CD-ROM software Choose Custom Install from the pop-up menu IIIpart Page Health-related information about computer use Appendix a Health, Safety, and Maintenance Tips Musculoskeletal discomfort Arranging your office Eye fatigue Thighs horizontal What about electromagnetic emissions? Avoiding fatigue Safety instructions Handling your computer equipment Handling the keyboard Handling the monitor Handling floppy disks Handling CD-ROM discs 139 Ejecting a disk Power supplyIf you can’t eject a floppy disk Cleaning the mouse Cleaning your equipmentCleaning the computer case Cleaning the monitor Rotate the rollers to clean all around them Put the ball and the ring back in place Locking and unlocking the mouse To unlock the mouse, follow these steps Appendix B Installing an Expansion Card Turn off the computer Expansion card power requirementsCard installation Do not completely remove the screws or the back panel Remove the cover from the computer Power supply Lower the retainer Squeeze the sides of the retainer and pull down Remove the card from its static-proof bag Hold the card by its edges to avoid touching the connector Align the connector end of the card with the expansion slot Back into place Replace the retainer Tighten the screws on the back panel Replace the cover on the computer Upgrading the processor Appendix C Special Keys on Your Keyboard Caps Lock key Clear key Command key Enter key Power key Return key Shift key Tab keyControl key Delete key Typing special characters and symbols Option-c …press this key combination Special key combinationsHere are other key combinations you may find useful To do this…Page Index Index Index Authorized service providers error messages troubleshooting Index Index Index Index See Scsi System Backup Disk 1 disk, starting the computer from Index Apple Computer, Inc