HP ProLiant DL740 Server - Manual (Page 131)

Installing Hardware Options, Hot-Plug
Installing a Hot-Plug Power Supply
The ProLiant DL740 server ships with two hot-plug power supplies. The system
power in the ProLiant DL740 server does not have to be shut off to replace one of the
power supplies.
WARNING: To reduce the risk of electric shock or damage to the equipment:
• Unplug the power cord before removing the power supply from the server.
• Disconnect power from the server by unplugging all power cords from
either the electrical outlet or the server.
Replacing a Hot-Plug Power Supply
To replace a hot-plug power supply with the system power on:
1. Press the power supply latch to release the power supply handle (1).
2. Rotate the power supply handle outward (2) and slide the power supply out of the
chassis (3), as shown in Figure 5-15. Use both hands when removing the power
supply to support its weight. Each power supply weighs 4 kg (9 lb).
NOTE: When you remove the power supply, a spring-loaded trap door closes to block the
opening. This door preserves the air path required to cool the internal components of the
server.
5-32 HP ProLiant DL740 Server User Guide
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