Apple twentieth anniversary mac 서비스 매뉴얼

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Problems with your computer’s speed and performance
Your computer’s performance decreases.
m If you notice a decrease in your computer’s speed and general performance after you install a
control panel or system extension, it may be because the software is not compatible with either
Macintosh computers built with the PowerPC microprocessor or with other system extensions.
To find out if a system extension or control panel is the problem, follow the instructions in the
section “Checking Your System Extensions” in Chapter 13.
m Use the Memory control panel to turn off virtual memory. (To find the Memory control panel,
choose Control Panels in the Apple [K] menu.) For more information on virtual memory, see the
information about memory in Mac OS Guide, available in the Guide (h) menu.
Note:  If you turn on both virtual memory and RAM disk in the Memory control panel, don’t set
both of them at or near their maximum values. Doing so can result in unpredictable or reduced
performance by your computer. (RAM disk uses random-access memory, or RAM, as if it were a hard
disk.)
m If you still do not notice an improvement, you may want to reinstall system software on your startup
hard disk. See “Installing System Software” in Chapter 13 for instructions.
m If you typically use several application programs at the same time, your computer’s performance will
increase if you install more random-access memory (RAM). See Chapter 10, “Installing Expansion
Cards and Memory.”
Solutions 
to Common
Problems
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