IBM 8872 Service Guide - Page 51

Performing, checkout, procedure, Checkpoint, codes, trained, service, technicians

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Performing the checkout procedure To perform the checkout procedure, complete the following steps: 1. Is the server part of a cluster? v No: Go to step 2. v Yes: Shut down all failing servers that are related to the cluster. Go to step 2. 2. Complete the following steps: a. Turn off the server and all external devices. b. Check all cables and power cords. c. Set all display controls to the middle positions. d. Turn on all external devices. e. Turn on the server. If the server does not start, see "Troubleshooting tables" on page 36. f. Check the system-error LED on the operator information panel. If it is flashing, check the light path diagnostics LEDs (see "Light path diagnostics" on page 49). g. Check for the following results: v Successful completion of POST, indicated by a single beep v Successful completion of startup, indicated by a readable display of the operating-system desktop 3. Did a single beep sound and are there readable instructions on the main menu? v No: Find the failure symptom in "Troubleshooting tables" on page 36; if necessary, see "Solving undetermined problems" on page 90. v Yes: Run the diagnostic programs (see "Running the diagnostic programs" on page 59). - If you receive an error, see "Diagnostic error codes" on page 60. - If the diagnostic programs were completed successfully and you still suspect a problem, see "Solving undetermined problems" on page 90. Checkpoint codes (trained service technicians only) A checkpoint code identifies the check that was occurring when the server stopped; it does not provide error codes or suggest replacement components. Checkpoint codes are shown on the checkpoint display, which is on the I/O board. By using the checkpoint display, you do not have to wait for the video to initialize each time you restart the server. There are two types of checkpoint codes: CPLD hardware checkpoint codes and BIOS checkpoint codes. The BIOS checkpoint codes might change when the BIOS code is updated. For a list of checkpoint codes for the xSeries 460 or MXE 460 server, see http://w3.pc.ibm.com/helpcenter/infotips/techinfo/MIGR-58350.html. Chapter 2. Diagnostics 35

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Performing
the
checkout
procedure
To
perform
the
checkout
procedure,
complete
the
following
steps:
1.
Is
the
server
part
of
a
cluster?
v
No:
Go
to
step
2.
v
Yes:
Shut
down
all
failing
servers
that
are
related
to
the
cluster.
Go
to
step
2.
2.
Complete
the
following
steps:
a.
Turn
off
the
server
and
all
external
devices.
b.
Check
all
cables
and
power
cords.
c.
Set
all
display
controls
to
the
middle
positions.
d.
Turn
on
all
external
devices.
e.
Turn
on
the
server.
If
the
server
does
not
start,
see
“Troubleshooting
tables”
on
page
36.
f.
Check
the
system-error
LED
on
the
operator
information
panel.
If
it
is
flashing,
check
the
light
path
diagnostics
LEDs
(see
“Light
path
diagnostics”
on
page
49).
g.
Check
for
the
following
results:
v
Successful
completion
of
POST,
indicated
by
a
single
beep
v
Successful
completion
of
startup,
indicated
by
a
readable
display
of
the
operating-system
desktop
3.
Did
a
single
beep
sound
and
are
there
readable
instructions
on
the
main
menu?
v
No:
Find
the
failure
symptom
in
“Troubleshooting
tables”
on
page
36;
if
necessary,
see
“Solving
undetermined
problems”
on
page
90.
v
Yes:
Run
the
diagnostic
programs
(see
“Running
the
diagnostic
programs”
on
page
59).
–
If
you
receive
an
error,
see
“Diagnostic
error
codes”
on
page
60.
–
If
the
diagnostic
programs
were
completed
successfully
and
you
still
suspect
a
problem,
see
“Solving
undetermined
problems”
on
page
90.
Checkpoint
codes
(trained
service
technicians
only)
A
checkpoint
code
identifies
the
check
that
was
occurring
when
the
server
stopped;
it
does
not
provide
error
codes
or
suggest
replacement
components.
Checkpoint
codes
are
shown
on
the
checkpoint
display,
which
is
on
the
I/O
board.
By
using
the
checkpoint
display,
you
do
not
have
to
wait
for
the
video
to
initialize
each
time
you
restart
the
server.
There
are
two
types
of
checkpoint
codes:
CPLD
hardware
checkpoint
codes
and
BIOS
checkpoint
codes.
The
BIOS
checkpoint
codes
might
change
when
the
BIOS
code
is
updated.
For
a
list
of
checkpoint
codes
for
the
xSeries
460
or
MXE
460
server,
see
Chapter
2.
Diagnostics
35