IBM 86481BU User Guide - Page 23

Server, power, features, Turning, server

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USB 1 connector Connect a USB device to this connector. Ethernet connector Use this connector to connect the server to a network. Serial 2 connector Connect a 9-pin serial device to this connector. If you have an optional Remote Supervisor Adapter II (systems-management adapter) installed in PCI-X slot 2, your server has additional connectors and LEDs. See the Option Installation Guide for more information about these connectors and LEDs. In addition, if you install the optional Remote Supervisor Adapter II, you must disconnect the video cable from the server external video connector 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 | 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-on LED flashes to | indicate that the server is connected to an ac power source but is not turned on. | Note: When the server is connected to an ac power source, the power supply fan | turns on and remains on to provide cooling to the power supply. 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 operating system by pressing the power-control button. The server can also be turned on in any of the following ways: v If a power failure occurs while the server is turned on, the server will restart automatically when power is restored. | v If your operating system supports the systems-management software for an | optional Remote Supervisor Adapter II, the systems-management software can | turn on the server. v If your operating system supports the Wake on LAN feature, the Wake on LAN feature can turn on the server. v If 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 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. Chapter 1. Introducing the xSeries 226 Type 8648 server 11

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USB
1
connector
Connect
a
USB
device
to
this
connector.
Ethernet
connector
Use
this
connector
to
connect
the
server
to
a
network.
Serial
2
connector
Connect
a
9-pin
serial
device
to
this
connector.
If
you
have
an
optional
Remote
Supervisor
Adapter
II
(systems-management
adapter)
installed
in
PCI-X
slot
2,
your
server
has
additional
connectors
and
LEDs.
See
the
Option
Installation
Guide
for
more
information
about
these
connectors
and
LEDs.
In
addition,
if
you
install
the
optional
Remote
Supervisor
Adapter
II,
you
must
disconnect
the
video
cable
from
the
server
external
video
connector
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
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-on
LED
flashes
to
indicate
that
the
server
is
connected
to
an
ac
power
source
but
is
not
turned
on.
Note:
When
the
server
is
connected
to
an
ac
power
source,
the
power
supply
fan
turns
on
and
remains
on
to
provide
cooling
to
the
power
supply.
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
operating
system
by
pressing
the
power-control
button.
The
server
can
also
be
turned
on
in
any
of
the
following
ways:
v
If
a
power
failure
occurs
while
the
server
is
turned
on,
the
server
will
restart
automatically
when
power
is
restored.
v
If
your
operating
system
supports
the
systems-management
software
for
an
optional
Remote
Supervisor
Adapter
II,
the
systems-management
software
can
turn
on
the
server.
v
If
your
operating
system
supports
the
Wake
on
LAN
feature,
the
Wake
on
LAN
feature
can
turn
on
the
server.
v
If
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
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.
Chapter
1.
Introducing
the
xSeries
226
Type
8648
server
11
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