48 Chapter 3
Installing a PCI Expansion Card, Memory, or an Internal
Storage Device
Follow these instructions to install a PCI expansion card, memory, or an internal storage device.
Important Before installing any of these items, carefully read “About PCI Expansion Cards,”
“About Memory,” and “About Internal Storage Options” earlier in this chapter.
Opening the Computer
1If your computer is turned on, turn it off by choosing Shut Down from the Special menu.
Then wait 5 minutes.
Before proceeding with these instructions, you need to allow the computer’s internal
components to cool.
2Unplug all the cables from the computer, including the power cord.
Important If your computer has an internal modem, unplug the phone cord from the modem.
3If the cover is locked shut, unlock it by removing the security cable or padlock from the
cover latch.
Do not remove the cover yet.
4If you have never plugged in your computer, make sure the voltage switch is set correctly for
the voltage system to which you will be connecting the computer.
If you don’t know the voltage used in the country you’re in, refer to “Voltage Switch Settings
for Different Locations,” in Chapter 1, “Setting Up Your Computer.”
Set the switch to show “115” for AC voltages in
the 100–120V range. Set the switch to show
“230” for AC voltages in the 200–240V range.
Check to see that the voltage switch on the back
of your computer is properly set before you plug
it in. If you need to change the setting, insert a
small screwdriver in this slot and slide the switch.