Apple M8840LL/A Setup Guide - Page 31
MHz and 33 MHz.
UPC - 718908440841
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The factory-installed video card that provides your computer's monitor port functions at 66 MHz and 33 MHz. 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 came 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 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 Appleauthorized 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 from a manufacturer other than Apple, check with an Apple-authorized dealer or service provider to see if you can install it yourself. For instructions on installing PCI cards, see the section "Installing a PCI Expansion Card" on page 49. 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. Important Make a note of the settings for communications programs before you replace the battery. Working Inside the Computer 31