Blade
server
power,
controls,
and
indicators
This
section
describes
the
power
features,
how
to
turn
on
and
turn
off
the
blade
server,
and
what
the
controls
and
indicators
mean.
Turning
on
the
blade
server
Notes:
v
After
you
have
installed
the
BladeCenter
QS20,
wait
until
the
power-on
LED
on
the
blade
server
flashes
slowly
before
pressing
the
blade
server
power
control
button.
Before
the
LED
flashes,
the
service
processor
in
the
BladeCenter
Management
Module
is
initializing,
and
the
power
control
button
on
the
blade
server
does
not
respond.
v
While
the
blade
server
is
powering
up,
the
power-on
LED
on
the
front
of
the
server
is
lit.
See
for
the
power-on
LED
states.
v
Throughout
this
document,
the
Management
Module
Web-based
user
interface
is
also
known
as
the
BladeCenter
Management
Module
Web
interface.
After
you
have
installed
the
BladeCenter
QS20,
the
blade
server
can
start
in
any
of
the
following
ways:
v
You
can
press
the
power-control
button
on
the
front
of
the
blade
server
(behind
the
control
panel
door)
to
start
the
server.
v
If
a
power
failure
occurs,
the
BladeCenter
unit
and
then
the
blade
server
can
start
automatically
when
power
is
restored
(if
the
blade
server
is
configured
through
the
BladeCenter
Management
Module
to
do
so).
v
You
can
use
the
BladeCenter
Management
Module
Web
interface
to
turn
on
the
blade
server
remotely.
Turning
off
the
blade
server
When
you
turn
off
the
blade
server,
it
is
still
connected
to
power
through
the
BladeCenter
unit.
The
blade
server
can
respond
to
requests
from
the
service
processor,
such
as
a
remote
request
to
turn
on
the
blade
server.
Battery (BH1)
Microprocessor 1
and heat sink (U31)
Control panel
connector (J9)
PCI expansion slot
Microprocessor 0
and heat sink (U1)
PCI-Express
(J14)
(J15)
Figure
1.
System
board
components
Chapter
1.
Introduction
5
Summary of Contents for BladeCenter QS20
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