Specifications

Table 4–29 Key for Figure 4–27
Key Description
A Power connector (1 of 2)
B Fan (1 of 2)
4.18 Replacing the Power Supply
The following steps describe the removal procedure for the power supply. Refer
to Figures 4–28 and 4–29 and Tables 4–30 and 4–31 during the procedure.
1. Shut down the system and unplug the power cord (Section 4.4).
2. Remove the top cover, side panels, and lower front and rear bezels using
the procedure in Section 4.5.
3. Press the locking tabs on the sides of the 15-pin power harness connector
and pull the connector off of the power supply. This connector is part of the
system power cable (70-28301-01).
4. Remove the screw that secures the +5 V (red) power bus wires to the power
supply.
5. Remove the screw that secures the 5 V RTN (black) power bus wires to the
power supply.
6. Remove the screw that secures the DC switch wire assembly protective
cover and remove the cover.
7. Remove the DC switch wire assembly connector from the power supply:
a. Carefully insert a flat-blade screwdriver under the connector and lift
the tip of the screwdriver up to release the latch on the bottom of the
connector.
b. Pull the connector off of the power supply.
8. Loosen the two captive screws on the sides near the rear of the power
supply.
9. Slide the power supply out of the rear of the chassis.
Reverse the above procedure to install the replacement power supply. Be sure
to align the power supply between the chassis guide rails as you slide it into
the chassis.
FRU Removal and Replacement 4–55