Performing The Checkout Procedure - Lenovo System x3750 M4 Installation And Service Manual

• The Dynamic System Analysis (DSA) program provides the primary methods of testing the major
components of the server, such as the system board, Ethernet controller, keyboard, mouse (pointing
device), serial ports, and hard disk drives. You can also use them to test some external devices. If you are
not sure whether a problem is caused by the hardware or by the software, you can use the diagnostic
programs to confirm that the hardware is working correctly.
• When you run DSA, a single problem might cause more than one error message. When this happens,
correct the cause of the first error message. The other error messages usually will not occur the next
time you run DSA.
If multiple error codes or light path diagnostics LEDs indicate a microprocessor error, the error might be in
the microprocessor or in the microprocessor socket. See "Microprocessor problems" on page 188 for
information about diagnosing microprocessor problems.
• Before you run diagnostic programs, you must determine whether the failing server is part of a shared
hard disk drive cluster (two or more servers sharing external storage devices). If it is part of a cluster, you
can run all diagnostic programs except the ones that test the storage unit (that is, a hard disk drive in the
storage unit) or the storage adapter that is attached to the storage unit. The failing server might be part of
a cluster if any of the following conditions is true:
– You have identified the failing server as part of a cluster (two or more servers sharing external storage
devices).
– One or more external storage units are attached to the failing server and at least one of the attached
storage units is also attached to another server or unidentifiable device.
– One or more servers are located near the failing server.
If the server is part of a shared hard disk drive cluster, run one test at a time. Do not run any suite of tests,
such as "quick" or "normal" tests, because this might enable the hard disk drive diagnostic tests.
• If the server is halted and a POST error code is displayed, see Appendix C "UEFI/POST error codes" on
page 479. If the server is halted and no error message is displayed, see "Troubleshooting by symptom"
on page 180 and "Solving undetermined problems" on page 198.
• For information about power-supply problems, see "Solving power problems" on page 197 and
"Power-supply LEDs" on page 170.
• For intermittent problems, check the event log; see "Event logs" on page 173 and Appendix B "DSA
diagnostic test results" on page 319.

Performing the checkout procedure

This section contains the steps to perform the checkout procedure.
Note: This documentation includes references to IBM web sites and information about obtaining service.
IBM is Lenovo's preferred service provider for the System x products.
To perform the checkout procedure, complete the following steps:
Step 1. Is the server part of a cluster?
• No: Go to Step 2 on page 160.
• Yes: Shut down all failing servers that are related to the cluster. Go toStep 2 on page 160.
Step 2. Complete the following steps:
a. Check the power supply LEDs (see "Power-supply LEDs" on page 170).
b. Turn off the server and all external devices.
c. Check all internal and external devices for compatibility at
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.
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Lenovo System x3750 M4 Installation and Service Guide