Apple LC 550 User Manual
Apple Computers
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