Chapter 3. Troubleshooting; Start Here; Diagnosing A Problem - Lenovo ThinkServer sd350 Installation And Service Manual

Chapter 3. Troubleshooting

This chapter describes the diagnostic tools and troubleshooting information that are available to help
you solve problems that might occur in the server.
If you cannot diagnose and correct a problem by using the information in this chapter, see Appendix C
"Getting help and technical assistance" on page 171 for more information.

Start here

You can solve many problems without outside assistance by following the troubleshooting procedures in
this documentation and on the World Wide Web.
This document describes the diagnostic tests that you can perform, troubleshooting procedures, and
explanations of error messages and error codes. The documentation that comes with your operating system
and software also contains troubleshooting information.

Diagnosing a problem

Before you contact Lenovo or an approved warranty service provider, follow these procedures in the order
in which they are presented to diagnose a problem with your server.
Step 1. Return the server to the condition it was in before the problem occurred.
If any hardware, software, or firmware was changed before the problem occurred, if possible,
reverse those changes. This might include any of the following items:
• Hardware components
• Device drivers and firmware
• System software
• UEFI firmware
• System input power or network connections
Step 2. View the System error LEDs and event logs.
The server is designed for ease of diagnosis of hardware and software problems.
• System error LEDs: See "Front view" on page 21 for information about the descriptions of
the LEDs.
• Event logs: See for information about notification events and diagnosis.
• Software or operating-system error codes: See the documentation for the software or
operating system for information about a specific error code. See the manufacturer's website
for documentation.
Step 3. Run Lenovo ThinkServer Diagnostics (LTD)/Lenovo ToolsCenter Suite CLI and collect system
data.
Run Lenovo ThinkServer Diagnostics (LTD)/Lenovo ToolsCenter Suite CLI to collect information
about the hardware, firmware, software, and operating system. Have this information available
when you contact Lenovo or an approved warranty service provider.
Step 4. Check for and apply code updates.
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