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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. Check the power supply LEDs, see “Power-supply LEDs” on page 187.
b. Turn off the server and all external devices.
c. Check all internal and external devices for compatibility at
http://www.lenovo.com/support.
d. Check all cables and power cords.
e. Set all display controls to the middle positions.
f. Turn on all external devices.
g. Turn on the server. If the server does not start, see “Troubleshooting tables”
on page 172.
h. 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 186).
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.
i. 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,
or was a POST error code displayed?
v Yes: Find the beep code or error code in “POST beep codes” on page 148 or
“POST error codes” on page 155; if necessary, see “Solving undetermined
problems” on page 215.
v No: Find the failure symptom in “Troubleshooting tables” on page 172; if
necessary, run the diagnostic programs (see “Running the diagnostic
programs” on page 189).
– If you receive an error, see “Diagnostic error codes” on page 191.
– If the diagnostic programs were completed successfully and you still
suspect a problem, see “Solving undetermined problems” on page 215.
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.
Chapter 5. Diagnostics 171