76
2.
Disconnect all power cables from all internal peripheral devices and the system board. Note
the locations to which the power cables are connected:
Cable
Connects to
P1 and P2
ATX power connectors on the system board
P3 through P8
CD-ROM drive, disk drives, and other peripheral devices
P9
Floppy disk drive
3.
Remove and retain the screws securing the power supply to the back of the base unit chassis.
CAUTION
Support the power supply as you remove the screws. Do not let the power supply fall
or damage to equipment may result.
4.
Remove the power supply from its shelf and the base unit chassis.
5.
Place the new power supply on its shelf in the base unit chassis and secure it with the four
screws removed previously
6.
Make sure the AC voltage selection switch on the power supply (on the back of the base unit)
is set to the proper line voltage for your location.
−
If your location uses 90 to 135 volts, the number 115 must be visible.
−
If your location uses 180 to 264 volts, the number 230 must be visible.
WARNING
If you do not set the AC voltage selection switch on the power supply correctly,
equipment damage may occur when you turn on power to the system.
7.
Reconnect the power cables to the system board and internal devices.
8.
Reconnect the AC power cable to the AC power receptacle at the back of the base unit chassis.
AC Voltage Selection Switch
AC Power Receptacle
