Apple Power Macintosh G3 Instruction Manual download pdf (Page 39)

Working Inside the Computer 39

Expansion Card Power Requirements

The combined power consumption of expansion cards must not exceed the limits speciﬁed

for your Macintosh model. For details, see the technical information section in the electronic

documentation that comes with your computer.

You can use the three 33 MHz expansion slots to install

m three 15 W cards

m one 15 W or 25 W card

m two 15 W or 25 W cards

m one 15 W card and one 25 W card

For instructions on installing PCI cards, see the section “Installing a PCI Expansion Card” on

page 57.

About the Computer’s Battery

The Macintosh has a 3.6 V lithium backup battery installed on the main logic board. Some

signs that you need to replace the battery are intermittent problems starting up your

computer and the date randomly resetting. Replacement batteries for the Macintosh are

available in many electronics and computer stores. You can install the new battery yourself or

have an Apple-authorized dealer do it for you for a fee.

Replacing the battery may cause some settings on your computer, such as the date and

network settings, to revert to factory default settings. You may also have to restore modem

settings in any communications programs you are using.

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 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.

Important Make a note of the settings for communications programs before you replace

the battery.

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Apple Power Macintosh G3 Instruction Manual Page 39