Apple Macintosh Performa 5400 Series - Manual (Page 83)

If your computer’s performance decreases
If you notice a decrease in your computer’s speed and general performance
after you install special software (a control panel, system extension, or custom
utility), it may be because the software is not compatible with Macintosh
computers built with the PowerPC microprocessor.
m To find out if a system extension or control panel is the problem, hold
down the Shift key while you restart the computer. This temporarily turns
off control panels and extensions. If the computer performs better without
this software, the software is likely to be the problem. (If you just added
new software, its system extension or control panel is the most probable
cause of the problem.)
To find out which software is the problem, use the Extensions Manager
control panel (in the Control Panels folder in the Apple [K] menu) to turn
off a system extension or set of extensions. (If you just added new software
to your computer, its system extension is the most probable cause of the
problem.) For detailed instructions, see the information about managing
system extensions in the “Customizing Your Macintosh” topic of
Macintosh Guide, available in the Guide (h) menu. If the computer
performs better when an extension is turned off, contact the extension’s
manufacturer for information or an upgrade.
m Use the Memory control panel to turn off virtual memory. For more
information on virtual memory, see the “Memory” topic of Macintosh
Guide, available in the Guide (h) menu.
m If you typically use several application programs at the same time, your
computer’s performance will increase if you install more RAM (random-
access memory). See Appendix E, “Installing Additional Memory.”
If you still do not notice an improvement, you may want to reinstall system
software on your startup hard disk. See Chapter 7, “Installing or Reinstalling
Your Software,” for instructions.
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