Power Supply Unit (Psu) - HP ProLiant DL145 Maintenance And Service Manual

Removal and Replacement Procedures

Power Supply Unit (PSU)

Located on the rear panel of the server is a single standard autoranging 500-watts PSU with
PFC (power factor correction) function.
Figure 2-52: Power supply unit
To replace the PSU:
1. Perform the pre-installation procedures described on page 2-5.
2. Remove the default PSU:
Keep the three screws you removed in this step for installing the new PSU later.
a. Disconnect the processor power cable, the system board power cable, and the PSU
b. Remove the PSU mounting screw located between the PSU fans.
c. Remove the two PSU mounting screws located in the rear panel.
d. Lift the PSU away from the chassis.
2-46
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WARNING: Take note of the following reminders to reduce the risk of personal injury
from electric shock hazards and/or damage to the equipment.
•
Installation of power supply units should be referred to individuals who are
qualified to service server systems and are trained to deal with equipment capable
of generating hazardous energy levels.
•
DO NOT open the power supply unit. There are no serviceable parts inside it.
2
I C cable from the system board (CN12, CN22, and CN21 respectively), then
disconnect the power cables of all installed drives from the PSU.
HP ProLiant DL145 Generation 2 Server Maintenance and Service Guide