About The Checkout Procedure; Performing The Checkout Procedure - Lenovo ThinkServer RD220 Hardware Maintenance Manual

About the checkout procedure

Before performing the checkout procedure for diagnosing hardware problems, review the following
information:
• Read the safety information that begins on page Safety information.
• The diagnostic programs provide 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 the diagnostic programs, 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 the diagnostic programs.
Note: If there are multiple error codes or LEDs that indicate a microprocessor error, the error might
be in the microprocessor or in the microprocessor socket. See Solving Microprocessor problems for
information about diagnosing microprocessor problems.
• Before running the 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.
Important: 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 Error logs.
• For information about power-supply problems, see Solving power problems.
• For intermittent problems, check the error log; see Error logs and Diagnostic programs, messages,
and error codes.

Performing the checkout procedure

To perform the checkout procedure, complete the following steps:
1. Is the server part of a cluster?
• No: Go to step .
• Yes: Shut down all failing servers that are related to the cluster. Go to step .
2. Complete the following steps:
a. Check the power supply LEDs, see Power-supply LEDs.
b. Turn off the server and all external devices.
c. Check all internal and external devices for compatibility at
http://www.ibm.com/servers/eserver/serverproven/compat/us/.
d. Make sure the server is cabled correctly.
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Chapter 5 Diagnostics