Performing The Checkout Procedure; Checkpoint Codes (Trained Service Technicians Only) - IBM x3400 7975 Problem Determination And Service Manual

Performing the checkout procedure

To perform the checkout procedure, complete the following steps:
1. Is the server part of a cluster?
2. Complete the following steps:
3. Did a single beep sound and are there readable instructions on the main menu,

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 system board. By using
the checkpoint display, you do not have to wait for the video to initialize each time
that you restart the server.
There are two types of checkpoint codes: complex programmable logic device
(CPLD) hardware checkpoint codes and BIOS checkpoint codes. The BIOS
checkpoint codes might change when the BIOS code is updated.
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System x3400 Types 7973, 7974, 7975, and 7976: Problem Determination and Service Guide
v No: Go to step 2.
v Yes: Shut down all failing servers that are related to the cluster. Go to step 2.
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 41.
f. Check the system-error LED on the control panel. If it is lit, check the LEDs
on the system board (see "Error LEDs" on page 55).
Important: If the system-error LED on the front of the server is lit but there
are no other error indications, clear the BMC log. This log does not clear
itself, and if it begins to fill up, the system-error LED will be lit. Also, after you
complete a repair or correct an error, clear the BMC log to turn off the
system-error LED on the front of the server.
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
or was a POST error code displayed?
v Yes: Find the beep code or error code in "POST beep codes" on page 18 or
"POST error codes" on page 24; if necessary, see "Solving undetermined
problems" on page 84.
v No: Find the failure symptom in "Troubleshooting tables" on page 41; if
necessary, run the diagnostic programs (see "Running the diagnostic
programs" on page 58).
– 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 84.