Power
problems
Power
symptom
Suggested
action
The
blade
server
does
not
turn
on.
1.
Make
sure
that:
a.
The
power-on
LED
on
the
front
of
the
BladeCenter
unit
is
lit.
b.
The
LEDs
on
all
the
BladeCenter
power
modules
are
lit.
c.
The
power-on
LED
on
the
blade-server
control
panel
is
flashing
slowly.
v
The
power-on
LED
only
flashes
rapidly
while
it
is
communicating
with
the
management
module.
If
the
power-on
LED
is
flashing
rapidly
and
continues
to
do
so
for
an
unduly
long
time,
the
blade
server
is
not
communicating
with
the
management
module.
Power
off,
reseat
the
blade
server
and
reboot.
v
If
the
power
LED
is
off,
either
the
blade
bay
is
not
receiving
power,
the
blade
server
is
defective,
the
Advanced
Management
Module
firmware
is
an
earlier
version
and
does
not
support
this
function,
or
the
LED
information
panel
is
loose
or
defective.
d.
Local
power
control
for
the
blade
server
is
enabled.
Check
using
the
Advanced
Management
Module
Web
interface.
The
blade
server
might
have
been
instructed
through
the
Advanced
Management
Module
to
turn
on.
2.
If
you
have
just
installed
a
new
option
in
the
blade
server,
remove
it,
and
restart
the
blade
server.
If
the
blade
server
now
powers
on,
troubleshoot
the
option.
See
the
documentation
that
comes
with
the
option
for
further
information.
3.
Try
another
blade
server
in
the
blade
bay.
If
it
works,
you
may
need
to
have
a
trained
service
technician
replace
the
system
blade
assembly.
Power
throttling
Be
aware
that
the
BladeCenter
unit
automatically
reduces
the
BladeCenter
QS22
processor
speed
if
certain
conditions
are
met.
One
such
condition
is
temperature
thresholds
being
exceeded,
for
example,
when
the
blade
server
is
running
in
acoustic
mode.
This
throttling
occurs
independent
of
your
power
configuration.
Full
processor
speed
is
restored
automatically
when
the
conditions
that
have
caused
the
throttling
have
been
resolved.
Network
connection
problems
Network
connection
symptom
Suggested
action
One
or
more
blade
servers
are
unable
to
communicate
with
the
network.
Make
sure
that:
v
The
switch
modules
for
the
network
interface
being
used
are
installed
in
the
correct
BladeCenter
bays
and
are
configured
and
operating
correctly.
v
The
settings
in
the
switch
module
are
correct
for
the
blade
server
(settings
in
the
switch
module
are
blade
server
specific).
For
additional
information,
see:
v
Chapter
2,
“Configuring
the
blade
server,”
on
page
9
v
The
Problem
Determination
and
Service
Guide
for
your
BladeCenter
unit
v
Other
product-specific
documentation
that
comes
with
the
switch
module
Note:
For
the
latest
editions
of
the
IBM
BladeCenter
documentation,
go
to
http://www.ibm.com/support/us/en/.
If
the
problem
remains,
see
“Solving
undetermined
problems”
on
page
108.
If
all
the
blades
cannot
communicate
with
the
network,
check
the
network
itself
for
problems.
62
BladeCenter
QS22
Type
0793:
Problem
Determination
and
Service
Guide
Summary of Contents for QS22 - BladeCenter - 0793
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