Apple M8840LL/A Setup Guide - Page 32

Warning The power supply in your computer is a high-voltage component and should not be opened for any reason, even when the computer is off. If the power supply needs service, contact your Apple-authorized dealer or service provider. Installing Memory, an Internal Storage Device, or a PCI Expansion Card, or Replacing the Battery Warning Always shut down the computer before opening it to avoid damaging its internal components. These instructions describe how to install memory, an internal storage device, a PCI expansion card, or a replacement battery. Important Before installing any of these items, carefully read "About Memory," "About Internal Storage Options," "About PCI Expansion Cards," and "About the Computer's Battery," earlier in this chapter. Opening the Computer 1 Shut down your computer by choosing Shut Down from the Special menu. Then wait 5 minutes to allow the computer's internal components to cool. Warning Turn off the computer properly before you open it or you could lose data. 2 If you attached a security cable through the computer's lockable cover latch, remove the cable. 3 Unplug all the cables from the computer except the power cord. 32 Chapter 2