Apple Macintosh Performa 570 series - Manual (Page 96)

Installing both types of expansion cards involves three steps:
m opening the computer
m inserting the card into a specific slot
m closing the computer
IMPORTANT To use the Apple IIe Card with your Macintosh, you will need
version 2.2 or later of the Apple IIe Card software. If you’re using an earlier
version, consult the service and support information that came with your
computer for information on how to obtain an upgrade.
Opening the computer
1 Choose Shut Down from the Apple (
K
) menu or the Special menu, or press the Power
key on the keyboard.
2 Turn the computer completely off by pressing the power switch at the back of the
computer.
3 Unplug the cable that connects your keyboard to the computer.
4 If there are security screws on either side of the computer’s back panel, remove them
with a Phillips screwdriver.
5 Place your thumbs on the two plastic tabs on the back panel of the computer.
88 Appendix B