IBM 8862 Hardware Maintenance Manual - Page 18

Light, diagnostics, panel, Server, power, features

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Keyboard connector: Connect a PS/2® (non-USB) keyboard to this connector. Serial connector: Connect a serial device to this connector. RXE Management Port: Connect the RXE Management A (In) Port of an optional IBM RXE-100 Remote Expansion Enclosure to this connector (see "RXE connector cabling" on page 60). Power-supply connector: Connect one end of the power-supply power cord to this connector and connect the other end to an ac power source. The server comes with one or two hot-swap power supplies, depending on the configuration. You can add a second hot-swap power supply to obtain full power redundancy. Connect each power supply to an ac power source for power redundancy. SCSI connector: Connect an external SCSI device to this connector. Light path diagnostics LED panel Swing the operator information panel out to see the light path diagnostics LED panel on the side surface (see "Light path diagnostics" on page 18 and "Light path LED errors" on page 93). 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 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 the server is connected to an Advanced System Management interconnect network that contains at least one server with a Remote Supervisor Adapter or Remote Supervisor Adapter II installed, the server can be turned on from the Remote Supervisor Adapter or Remote Supervisor Adapter II user interface. v The system-management software for the Remote Supervisor Adapter II in your server 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. 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. 8 IBM xSeries 365 Types 8861, 8862: Hardware Maintenance Manual and Troubleshooting Guide

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Keyboard
connector:
Connect
a
PS/2
®
(non-USB)
keyboard
to
this
connector.
Serial
connector:
Connect
a
serial
device
to
this
connector.
RXE
Management
Port:
Connect
the
RXE
Management
A
(In)
Port
of
an
optional
IBM
RXE-100
Remote
Expansion
Enclosure
to
this
connector
(see
“RXE
connector
cabling”
on
page
60).
Power-supply
connector:
Connect
one
end
of
the
power-supply
power
cord
to
this
connector
and
connect
the
other
end
to
an
ac
power
source.
The
server
comes
with
one
or
two
hot-swap
power
supplies,
depending
on
the
configuration.
You
can
add
a
second
hot-swap
power
supply
to
obtain
full
power
redundancy.
Connect
each
power
supply
to
an
ac
power
source
for
power
redundancy.
SCSI
connector:
Connect
an
external
SCSI
device
to
this
connector.
Light
path
diagnostics
LED
panel
Swing
the
operator
information
panel
out
to
see
the
light
path
diagnostics
LED
panel
on
the
side
surface
(see
“Light
path
diagnostics”
on
page
18
and
“Light
path
LED
errors”
on
page
93).
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
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
the
server
is
connected
to
an
Advanced
System
Management
interconnect
network
that
contains
at
least
one
server
with
a
Remote
Supervisor
Adapter
or
Remote
Supervisor
Adapter
II
installed,
the
server
can
be
turned
on
from
the
Remote
Supervisor
Adapter
or
Remote
Supervisor
Adapter
II
user
interface.
v
The
system-management
software
for
the
Remote
Supervisor
Adapter
II
in
your
server
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.
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.
8
IBM
xSeries
365
Types
8861,
8862:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide