IBM 8840 Hardware Maintenance Manual - Page 16

Server, power, features

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Ethernet activity LEDs: When these LEDs are lit, they indicate that the server is transmitting to or receiving signals from the Ethernet LAN that is connected to the Ethernet port. Ethernet 1 connector: Use this connector to connect the server to a network. Ethernet 2 connector: Use this connector to connect the server to a network. Remote Supervisor Adapter II SlimLine Ethernet connector: Use this connector to connect the server to a network for systems-management information control. This connector is active only if you have installed a Remote Supervisor Adapter II SlimLine. Power-cord connectors: Connect the power cords to these connectors. AC power LED: On some server models, each hot-swap power supply has an ac power LED and a dc power LED. During typical operation, both the ac and dc power LEDs are lit. For any other combination of LEDs, see "Power-supply LED errors" on page 99. DC power LED: On some server models, each hot-swap power supply has a dc power LED and an ac power LED. During typical operation, both the ac and dc power LEDs are lit. For any other combination of LEDs, see "Power-supply LED errors" on page 99. SCSI connector: Connect a SCSI device to this connector. ASM connectors: Use either of these connectors to connect the server to an Integrated xSeries Adapter (IXA) that is installed in the server. System-locator LED: Use this LED to visually locate the server among other servers. You can use IBM Director to light this LED remotely. USB connectors: Connect USB devices to these connectors. Video connector: Connect a monitor to this connector. Mouse connector: Connect a mouse or other PS/2 device to this connector. Keyboard connector: Connect a PS/2 keyboard to this connector. Serial connector: Connect a 9-pin serial device to this 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 service processor is shut down; however, the server can respond to requests from the service processor (also called the baseboard management controller), 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 is not turned on. Turning on the server Approximately 5 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. 6 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide

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Ethernet
activity
LEDs:
When
these
LEDs
are
lit,
they
indicate
that
the
server
is
transmitting
to
or
receiving
signals
from
the
Ethernet
LAN
that
is
connected
to
the
Ethernet
port.
Ethernet
1
connector:
Use
this
connector
to
connect
the
server
to
a
network.
Ethernet
2
connector:
Use
this
connector
to
connect
the
server
to
a
network.
Remote
Supervisor
Adapter
II
SlimLine
Ethernet
connector:
Use
this
connector
to
connect
the
server
to
a
network
for
systems-management
information
control.
This
connector
is
active
only
if
you
have
installed
a
Remote
Supervisor
Adapter
II
SlimLine.
Power-cord
connectors:
Connect
the
power
cords
to
these
connectors.
AC
power
LED:
On
some
server
models,
each
hot-swap
power
supply
has
an
ac
power
LED
and
a
dc
power
LED.
During
typical
operation,
both
the
ac
and
dc
power
LEDs
are
lit.
For
any
other
combination
of
LEDs,
see
“Power-supply
LED
errors”
on
page
99.
DC
power
LED:
On
some
server
models,
each
hot-swap
power
supply
has
a
dc
power
LED
and
an
ac
power
LED.
During
typical
operation,
both
the
ac
and
dc
power
LEDs
are
lit.
For
any
other
combination
of
LEDs,
see
“Power-supply
LED
errors”
on
page
99.
SCSI
connector:
Connect
a
SCSI
device
to
this
connector.
ASM
connectors:
Use
either
of
these
connectors
to
connect
the
server
to
an
Integrated
xSeries
Adapter
(IXA)
that
is
installed
in
the
server.
System-locator
LED:
Use
this
LED
to
visually
locate
the
server
among
other
servers.
You
can
use
IBM
Director
to
light
this
LED
remotely.
USB
connectors:
Connect
USB
devices
to
these
connectors.
Video
connector:
Connect
a
monitor
to
this
connector.
Mouse
connector:
Connect
a
mouse
or
other
PS/2
device
to
this
connector.
Keyboard
connector:
Connect
a
PS/2
keyboard
to
this
connector.
Serial
connector:
Connect
a
9-pin
serial
device
to
this
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
service
processor
is
shut
down;
however,
the
server
can
respond
to
requests
from
the
service
processor
(also
called
the
baseboard
management
controller),
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
is
not
turned
on.
Turning
on
the
server
Approximately
5
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.
6
xSeries
346
Types
8840
and
1880:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide