Apple LC 550 Specifications download pdf (Page 30)

Installing an expansion card

The Macintosh comes with a slot inside called a processor-direct

slot in which you can install a processor-direct expansion card for

special purposes. Some expansion cards are designed so that you

can install them yourself. Others can be installed only by an Apple-

authorized representative. To install a card, use the

documentation supplied with the card you plan to install, or

follow the instructions in this section.

s Warning: If you have installed a floating-point unit (FPU) on

the main logic board of your Macintosh, do not install an

expansion card that also contains one. If you have two FPUs,

your Macintosh may not work properly.

s Warning: To avoid damaging your computer and expansion

card, do not attempt to install any expansion card without

first checking the documentation for that card. If the

documentation specifies that an Apple-certified technician

must install the card (usually because the installation requires

special training or tools), consult the service and support

information that came with your computer for instructions on

how to contact an Apple-authorized service provider or Apple

for assistance. If you attempt to install the card yourself, any

damage you may cause to the computer or card will not be

covered by the limited warranty on your computer. If the card

is not an Apple-labeled product, check with an Apple-

authorized dealer or service provider to see if you can install it

yourself.

To install an expansion card:

1. Choose Shut Down from the Special menu or press the

Power key on the keyboard.

2. Turn off the computer completely by pressing the main

power switch at the back of the computer.

3. Unplug the cable that connects your keyboard to the

computer.

4. If there are screws on either side of the back panel,

remove them.

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Apple LC 550 Specifications Page 30