IBM 72335LU User Guide - Page 26

Server, power, features

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AC power LED: This green LED provides status information about the power supply. During typical operation, both the ac and dc power LEDs are lit. For any other combination of LEDs, see the Problem Determination and Service Guide on the IBM System x Documentation CD. DC power LED: This green LED provides status information about the power supply. During typical operation, both the ac and dc power LEDs are lit. For any other combination of LEDs, see the Problem Determination and Service Guide on the IBM System x Documentation CD. Power-supply error LED: When this amber LED is lit, it indicates that there is an error condition within the power supply. For more information, see the Problem Determination and Service Guide on the IBM System x Documentation CD. Power supply 2 connector: Connect the power cord to this connector. SMP Expansion Port 3 connector: Use this connector to connect the server to other servers to form multi-node configurations (requires scalability enablement). SMP Expansion Port 3 link LED: When this LED is lit, it indicates that there is an active connection on SMP Expansion Port 3. SMP Expansion Port 1 link LED: When this LED is lit, it indicates that there is an active connection on SMP Expansion Port 1. SMP Expansion Port 1 connector: Use this connector to connect the server to other servers to form multi-node configurations (requires scalability enablement). SMP Expansion Port 2 link LED: When this LED is lit, it indicates that there is an active connection on SMP Expansion Port 2. SMP Expansion Port 2 connector: Use this connector to connect the server to other servers to form multi-node configurations (requires scalability enablement). System serial connector: Connect a 9-pin serial device to this connector. SAS connector: Connect an internal SAS device to this connector. USB connectors: Connect USB devices to these connectors. 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, 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 20 seconds 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: 14 IBM System x3850 M2 and System x3950 M2 Type 7141: User's Guide

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AC
power
LED:
This
green
LED
provides
status
information
about
the
power
supply.
During
typical
operation,
both
the
ac
and
dc
power
LEDs
are
lit.
For
any
other
combination
of
LEDs,
see
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD.
DC
power
LED:
This
green
LED
provides
status
information
about
the
power
supply.
During
typical
operation,
both
the
ac
and
dc
power
LEDs
are
lit.
For
any
other
combination
of
LEDs,
see
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD.
Power-supply
error
LED:
When
this
amber
LED
is
lit,
it
indicates
that
there
is
an
error
condition
within
the
power
supply.
For
more
information,
see
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD.
Power
supply
2
connector:
Connect
the
power
cord
to
this
connector.
SMP
Expansion
Port
3
connector:
Use
this
connector
to
connect
the
server
to
other
servers
to
form
multi-node
configurations
(requires
scalability
enablement).
SMP
Expansion
Port
3
link
LED:
When
this
LED
is
lit,
it
indicates
that
there
is
an
active
connection
on
SMP
Expansion
Port
3.
SMP
Expansion
Port
1
link
LED:
When
this
LED
is
lit,
it
indicates
that
there
is
an
active
connection
on
SMP
Expansion
Port
1.
SMP
Expansion
Port
1
connector:
Use
this
connector
to
connect
the
server
to
other
servers
to
form
multi-node
configurations
(requires
scalability
enablement).
SMP
Expansion
Port
2
link
LED:
When
this
LED
is
lit,
it
indicates
that
there
is
an
active
connection
on
SMP
Expansion
Port
2.
SMP
Expansion
Port
2
connector:
Use
this
connector
to
connect
the
server
to
other
servers
to
form
multi-node
configurations
(requires
scalability
enablement).
System
serial
connector:
Connect
a
9-pin
serial
device
to
this
connector.
SAS
connector:
Connect
an
internal
SAS
device
to
this
connector.
USB
connectors:
Connect
USB
devices
to
these
connectors.
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,
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
20
seconds
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:
14
IBM
System
x3850
M2
and
System
x3950
M2
Type
7141:
User’s
Guide