Removal and Replacement Procedures
Powering Down the Server
System power for the server does not completely shut off with the front panel Power
On/Standby button. The button toggles between on and standby modes, rather than on and
off. The standby position removes power from most electronics and the drives, but portions
of the power supply and some internal circuitry remain active. To completely remove all
power from the system, you must disconnect all power cords from the server.
WARNING: To reduce the risk of injury from electric shock, remove the
power cords to completely disconnect power from the system.
CAUTION: Electrostatic discharge can damage electronic components. Be sure you are
properly grounded before beginning any installation procedure. For more information, refer to
the “Electrostatic Discharge” section in this chapter.
Rack Server
To power down the rack server:
1. Back up the server data.
2. Shut down the operating system as directed in the operating system instructions.
3. Press the Power On/Standby button.
Figure 2-3: Pressing the Power On/Standby button (rack server)
4. Be sure that the system power LED on the front panel, near the Power On/Standby
button, is amber and that the fan noise stops.
5. Disconnect all AC power cords from the AC outlets and then from the server.
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide 2-7
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