Apple 2300 Series manual m Reduce the size of the disk cache in the Memory control panel

mStart the computer, holding down the Shift key until you see the message “Extensions off” in the Welcome to Macintosh box. If the computer starts up, turn to “Checking Your System Software Extensions” in Chapter 7.

About the codes in error messages: The number codes in error messages are used in software development. Sometimes they can help a technician narrow down the source of a problem. However, the codes are usually too general or technical in nature to help you diagnose a problem yourself.

When the computer starts up, a message says there is not enough memory.

mThere may not be enough memory to load all the system software extensions you’ve installed. Restart the computer, holding down the Shift key until you see the message “Extensions off” in the Welcome to Macintosh box. Then try the following to increase available memory:

m Reduce the size of the disk cache in the Memory control panel.

m If you use a RAM disk, reduce its size or turn it off in the Memory control panel.

m Remove any system software extensions you don’t need from the Extensions folder (inside the System Folder).

m Turn on virtual memory in the Memory control panel.

IMPORTANT You need to restart the computer for these changes to take effect.

mIf these suggestions don’t work, you can increase memory by installing a RAM expansion card in your computer. See the Technical Information booklet that came with your computer for instructions.

The computer freezes during operation or it won’t restart.

mIf the computer freezes, you can try to “force” the program you’re using to quit by simultaneously pressing the keys x, Option, and Esc on your keyboard. Then click Force Quit in the dialog box that appears. (Note: Unsaved changes in any open documents will be lost.) Immediately save all open documents, quit all other open programs, and restart the computer.

mPress the reset button (marked with the icon I) on the back panel. Note: You will lose any work you have not saved.

84Chapter 6