Apple LC520, LC 560 User Manual



Important information about your Macintosh Processor Upgrade
for Performa/LC 520/550/560

The Macintosh Processor Upgrade card works only with System 7.5 or later.
Your service provider should have installed the correct system software. If the
software hasn’t been installed, you can install the software yourself.

Do you need to install system software?

To determine whether the System 7.5 software you need is already installed,
follow the instructions on page 3 of the Macintosh Processor Upgrade User’s
Guide that came with your upgrade. If you need to install System 7.5, the
manual directs you to the instructions in Appendix A.

Updating your system software

We recommend that you install System 7.5 Update 1.0. You can follow the
instructions on the other side of this sheet.

©

1995 Apple Computer, Inc. All rights reserved.
Apple, the Apple logo, Macintosh, and Performa are trademarks of
Apple Computer, Inc., registered in the U.S. and other countries.

030-7755-A

Installing System 7.5 Update 1.0

Apple Computer works continually to identify and resolve any issues relating
to Macintosh system software. System 7.5 Update 1.0 fixes some minor
problems in System 7.5, the previous generation of system software. It is
always a good idea to take advantage of such improvements and install
software updates you receive.

Make sure any virus protection software is turned off.

1 Insert the

2If necessary, double-click the disk icon to open it.

3Double-click the Installer icon.

4 In the welcome screen that appears, click Continue.

5 In the Easy Install dialog box, make sure the destination disk named is correct.

System 7.5 Update Install 1

disk into the floppy drive.

To change to a different disk, click Switch Disk.

6 Click Install.

The Installer updates the software in the System Folder on your hard disk. It
takes several minutes to complete installation.

7Follow the instructions on the screen.

On-screen messages tell you when you need to insert other disks. Installation
takes several minutes.

8When the installation is complete, restart your computer.

If the installation was not successful, try it again. If you can’t restart the
computer, see Chapter 5 of the Macintosh Processor Upgrade User’s Guide for
troubleshooting help.

Learning about your new processor

For details about the processor’s features, see the booklet Technical
Information that came with your upgrade.