IBM QS21 Service Guide - Page 74

Color, Board, location, Explanation, Comments

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Table 4. System board LEDs (continued) LED Color Board location Explanation Temperature fault Yellow Light box The blade server has exceeded the operational temperature range. Comments v Using the Advanced Management Module, check that the BladeCenter unit cooling system is operating correctly. v Replace any missing filler blades in the BladeCenter unit. v Replace any missing filler blades in the BladeCenter QS21 DIMM sockets. v Check that other blade servers are operating within the recommended temperature range. v Replace the blade server, power on and boot. Check Advanced Management Module for errors. NMI error Yellow CPU fail Yellow System board Yellow Light path diagnostics Green If the problem persists, contact your IBM service representative as the system board may need servicing. The NMI pinhole reset on the front panel has been pressed. Pressing the reset causes the operating system to call the system debugger. One of the Cell BE processors has failed. Contact your IBM service representative as the system board needs replacement. A critical error has occurred in a Contact your IBM service component on the system board. representative as the system board may need replacing. Lights when the light path diagnostics switch is pressed. Indicates that the capacitor is charged and the light path LEDs can light to show any errors. If this LED does not light then the light path LEDs cannot function. Reinstall the blade server in the BladeCenter unit and power on to recharge. If this fails to resolve the problem, there is a problem with the system board and it may need replacement. 56 BladeCenter QS21 Type 0792: Problem Determination and Service Guide

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Table
4.
System
board
LEDs
(continued)
LED
Color
Board
location
Explanation
Comments
Temperature
fault
Yellow
Light
box
The
blade
server
has
exceeded
the
operational
temperature
range.
v
Using
the
Advanced
Management
Module,
check
that
the
BladeCenter
unit
cooling
system
is
operating
correctly.
v
Replace
any
missing
filler
blades
in
the
BladeCenter
unit.
v
Replace
any
missing
filler
blades
in
the
BladeCenter
QS21
DIMM
sockets.
v
Check
that
other
blade
servers
are
operating
within
the
recommended
temperature
range.
v
Replace
the
blade
server,
power
on
and
boot.
Check
Advanced
Management
Module
for
errors.
If
the
problem
persists,
contact
your
IBM
service
representative
as
the
system
board
may
need
servicing.
NMI
error
Yellow
The
NMI
pinhole
reset
on
the
front
panel
has
been
pressed.
Pressing
the
reset
causes
the
operating
system
to
call
the
system
debugger.
CPU
fail
Yellow
One
of
the
Cell
BE
processors
has
failed.
Contact
your
IBM
service
representative
as
the
system
board
needs
replacement.
System
board
Yellow
A
critical
error
has
occurred
in
a
component
on
the
system
board.
Contact
your
IBM
service
representative
as
the
system
board
may
need
replacing.
Light
path
diagnostics
Green
Lights
when
the
light
path
diagnostics
switch
is
pressed.
Indicates
that
the
capacitor
is
charged
and
the
light
path
LEDs
can
light
to
show
any
errors.
If
this
LED
does
not
light
then
the
light
path
LEDs
cannot
function.
Reinstall
the
blade
server
in
the
BladeCenter
unit
and
power
on
to
recharge.
If
this
fails
to
resolve
the
problem,
there
is
a
problem
with
the
system
board
and
it
may
need
replacement.
56
BladeCenter
QS21
Type
0792:
Problem
Determination
and
Service
Guide