Information about your system, preinstalled software, or an optional device is available in the documentation that comes with the product. Product documentation sources include: information centers, online documents, printed documents, readme files, and help files.
The troubleshooting information in your system documentation might include instructions for using diagnostic programs. The troubleshooting information or the diagnostic programs could indicate that you need additional or updated device drivers or other software. Check these websites for additional information and updates:
Lenovo Service and Support and the http://www.lenovo.com/support have the latest technical information, device drivers, and updates.
The Publications Center has additional documentation.