HP ProLiant SL390s G7 1U Half-width Server Maintenance and Service Guide

Removal and replacement procedures 55
Power supply unit (PSU)
Located on the rear panel of the server power supply is a standard ranging 750 watt or 1200 watt
PSU with PFC (power factor correction) function.
Figure 39 Power supply unit
WARNING: Note 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.
To remove the PSU backplane:
1. Remove the top cover from the power supply cage.
2. Remove the PSU backplane.
3. Reinstall the top cover to the power supply cage