Dell PowerEdge SC1420 - Manual (Page 8)

5. While pressing the power-supply release button, slide the power supply toward the back of the system. See Figure 1 -7 .
Figure 1-7. Removing and Installing the Power Supply
6. While pulling the power supply away from the system, carefully guide the power-supply cables through the hole in the side of the chassis.
Installing the Power Supply
1. Carefully guide the power-supply cables through the hole in the side of the chassis.
2. Align the tabs on the power supply with the securing notches in the chassis. See Figure 1 -7 .
3. Slide the power supply toward the front of the system until it snaps into place.
4. Install the expansion-card guide (see Figure 1 -6 ):
a. Align the four expansion-card guide tabs with the securing slots in the chassis.
b. Lower the guide into the securing slots and slide the guide away from the power supply until it snaps into place.
5. Connect the following power supply cables (see Figure 1 -6 ):
l POWER 2 connector on the system board.
l POWER 1 connector on the system board.
l P3 connector for the hard drives. See Figure 1 -6 .
6. Close the system.
7. Reconnect the system to the electrical outlet, and turn on the system.