Lenovo ThinkServer RD120 Bedienungsanleitung PDF herunterladen (Seite 51)

Attention: In a dc power environment, only trained service personnel other than

Lenovo service technicians are authorized to connect or disconnect power to the dc

power supply. See the documentation that comes with each dc power supply.

Turning on the server

Approximately 5 seconds after the server is connected to power, the power-control

button becomes active, and one or more fans might start running to provide cooling

while the server is connected to power. You can turn on the server and start the

operating system by pressing the power-control button. If a power failure occurs

while the server is turned on, the server will restart automatically when power is

restored.

Note: When 4 GB or more of memory (physical or logical) is installed, some

memory is reserved for various system resources and is unavailable to the

operating system. The amount of memory that is reserved for system resources

depends on the operating system, the configuration of the server, and the

configured PCI options.

Turning off the server

When you turn off the server and leave it connected to power, the server can

respond to requests from the service processor, such as a remote request to turn

on the server. While the server remains connected to power, one or more fans

might continue to run. To remove all power from the server, you must disconnect it

from the power source.

Attention: In a dc power environment, only trained service personnel other than

Lenovo service technicians are authorized to connect or disconnect power to the dc

power supply. See the documentation that comes with each dc power supply.

Some operating systems require an orderly shutdown before you turn off the server.

See your operating-system documentation for information about shutting down the

operating system.

Statement 5:

CAUTION:

The power control button on the device and the power switch on the power

supply do not turn off the electrical current supplied to the device. The device

also might have more than one power cord. To remove all electrical current

from the device, ensure that all power cords are disconnected from the power

source.

Attention: In a dc power environment, only trained service personnel other than

Lenovo service technicians are authorized to connect or disconnect power to the dc

power supply. See the documentation that comes with each dc power supply.

Chapter 3. Server controls, LEDs, and power 37

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Lenovo ThinkServer RD120 Bedienungsanleitung Seite 51