IBM 8485, 8490 manual Server power features, Turning on the server, Turning off the server

Ethernet transmit/receive activity LED

This LED is on the Ethernet connector on the rear of the server. When this LED is lit, it indicates that there is activity between the server and the network.

Ethernet link status LED

This LED is on the Ethernet connector on the rear of the server. When this LED is lit, it indicates that there is an active connection on the Ethernet port.

If an optional Remote Supervisor Adapter II (systems-management adapter) is installed, the server has additional connectors and LEDs. For more information about these connectors and LEDs, see the documentation that comes with this adapter. If you install the optional Remote Supervisor Adapter II, you must disconnect the video cable from the system board and connect it to the optional Remote Supervisor Adapter II.

Server power features

When the server is connected to an ac power source but is not turned on, the does not run, and all core logic is shut down; however, the server can respond to remote requests to turn on the server.

Turning on the server

Approximately 20 seconds after the server is connected to ac power, the power-control button becomes active, and you can turn on the server and start the by pressing the power-control button.

The server can also be turned on in any of the following ways:

vIf a power failure occurs while the server is turned on, the server will restart automatically when power is restored.

vIf your supports the systems-management software for an optional Remote Supervisor Adapter II, the systems-management software can turn on the server.

vIf your supports the Wake on LAN® feature, the Wake on LAN feature can turn on the server.

vIf an optional Remote Supervisor Adapter II is installed in the server, the server can be turned on from the Remote Supervisor Adapter II user interface.

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 . The amount of memory that is reserved for system resources depends on the , 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 remote requests to turn on the server. To remove all power from the server, you must disconnect it from the power source.

Some s require an orderly shutdown before you turn off the server. See your operating-system documentation for information about shutting down the operating system.

36xSeries 206m Types 8485 and 8490: Installation Guide