NEC Express5800/320Ma Bedienungsanleitung PDF herunterladen (Seite 21)

Hardware Operation 2-1

Chapter 2

Hardware Operation

See the following for information about the basic operation of Express5800/320Ma 3.2

GHz, 3.6 GHz, and Dual-Core systems:

• “Standby Power” on page 2-1

• “System Power” on page 2-1

• “Starting Up the System” on page 2-2

• “Shutting Down the System” on page 2-2

• “Fan Speed” on page 2-3

See the vendor documentation for information about operating optional equipment.

Standby Power

When one or both of the system power cords are connected to live AC power outlets,

low-level standby power is present in the system. Standby power enables the primary

BMC controller to monitor the status of system components, even when the system

power is off.

Standby power also allows for continuous operation of the VTMs and the modem

assembly; therefore, while the system power is off, administrators can still connect to

the system through the VTMs or the modem assembly to diagnose problems, or to turn

system power on and off from a remote location.

Standby power remains present even after the system has been powered down. To

remove power to the standby devices, remove the power cords.

System Power

Express5800/320Ma 3.2 GHz, 3.6 GHz, and Dual-Core systems have two power

buttons, one on each CPU- I ⁄ O enclosure. Because only one enclosure is the primary

or active enclosure, only one power button is the active button: the one whose LED is

lit (assuming the system has standby power). This button, which you press to start the

system, indicates the primary CPU- I ⁄ Oenclosure.

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NEC Express5800/320Ma Bedienungsanleitung Seite 21