Server Power Features; Turning On The Server - IBM eServer xSeries x382 Hardware Maintenance Manual And Troubleshooting Manual

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 is shut down; however, the server
can respond to remote requests to turn on the server. The power supply LEDs flash
to indicate that the server is connected to an ac power source but is not turned on
(standby mode).

Turning on the server

Notes:
1. Turn on all external devices, such as the monitor, before turning on the server.
2. The power-on LED on the front of the server is lit when the server is on and
Approximately 10 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
operating system by pressing the power-control button. If a power failure occurs
while the server is turned on the server maybe configured to restart automatically
when power is restored. See System Maintenance Utility on your Resource CD for
configuring power options.
Note: When 4 GB or more of memory (physical or logical) is installed, some
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IBM eServer xSeries x382 Type 8834: Hardware Maintenance Manual and Troubleshooting Guide
while it is powering up.
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.