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50 Installing System Components
Power Supply
Your system supports one power supply rated at an output of 800 W.
NOTICE: To ensure proper system cooling, the power supply blank must be installed on the unoccupied power
supply bay.
Removing the Power Supply
1 Turn off the system and all attached peripherals.
2 Disconnect the power cable from the power outlet and the power supply, and remove the cable
from the cable retention bracket.
3 Open the system. See "Opening the System" on page 48.
4
Remove the expansion-bay and processor-cooling fans (FAN1, FAN2, and FAN3). See "Removing and
Installing a Fan" on page 53.
5
Remove the center fan bracket. See "Removing the Center Fan Bracket" on page 79.
6
Disconnect the power cables from the following components where applicable (see Figure 6-2 for
connector locations):
• PWR1 connector on the system board
• PWR2 connector on the system board
• PWR CTRL connector on the system board
• Hard drives
• Diskette drive
• Optical drive
• Tape backup unit
• Cable retention clips on the chassis (see Figure 3-4)
7 Remove the four screws securing the power supply to the back panel. See Figure 3-4.
8
Slide the power supply from the system.