Lenovo TD100X manual Checkout procedure, About the checkout procedure

Checkout procedure

The checkout procedure is the sequence of tasks that you should follow to diagnose a problem in the server.

About the checkout procedure

Before performing the checkout procedure for diagnosing hardware problems, review the following information:

vRead the safety information that begins on page vii.

vThe 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.

vWhen 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.

Exception: If there are multiple error codes or LEDs that indicate a microprocessor error, the error might be in a microprocessor or in a microprocessor socket. See “Microprocessor problems” on page 178 for information about diagnosing microprocessor problems.

vBefore 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.

vIf the server is halted and a POST error code is displayed, see “Error logs” on page 153. If the server is halted and no error message is displayed, see “Troubleshooting tables” on page 172 and “Solving undetermined problems” on page 215.

vFor information about power-supply problems, see “Solving power problems” on page 213.

vFor intermittent problems, check the error log; see “Error logs” on page 153 and “Diagnostic programs, messages, and error codes” on page 189.

170ThinkServer TD100 and TD100x: Hardware Maintenance Manual