Server Power Features; Turning On The Server; Turning Off The Server - Lenovo ThinkServer TD200x Hardware Maintenance Manual

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Hard disk drive connectors
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Power connector
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Signal connector
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Configuration connector

Server power features

When the server is connected to an ac power source but is not turned on, the operating system does not
run, and all core logic except for the integrated management module (IMM) is shut down; however, the server
can respond to requests from the IMM, such as a remote request to turn on the server. The power-on LED
flashes to indicate that the server is connected to ac power but not turned on.

Turning on the server

Approximately 3 minutes after the server is connected to ac 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.
The server can also be turned on in any of the following ways:
• If a power failure occurs while the server is turned on, the server will restart automatically when power
is restored.
• If your operating system supports the Wake on LAN® feature, the Wake on LAN feature can turn on
the server.
For 32-bit operating systems only: 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 ac power, the server can respond to requests from
the IMM, such as a remote request to turn on the server. While the server remains connected to ac power,
one or more fans might continue to run. To remove all power from the server, you must disconnect it
from the power source.
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ThinkServer TD200x Hardware Maintenance Manual