Lenovo ThinkCentre M55 (English) User guide - Page 71

Using the documentation and diagnostic programs Many computer problems can be solved without outside assistance. If you experience a problem with your computer, see Chapter 7, "Troubleshooting and diagnostics," on page 47. For information on additional resources to help you troubleshoot your computer problem, see "Information resources" on page 53. If you suspect a software problem, see the documentation, including README files and online help, that comes with the operating system or application program. Most computers come with a set of diagnostic programs that you can use to help you identify hardware problems. For instructions on using the diagnostic programs, see "Diagnostic programs" on page 48. The troubleshooting information or the diagnostic programs might tell you that you need additional or updated device drivers or other software. Lenovo maintains pages on the World Wide Web where you can get the latest technical information and download device drivers and updates. To access these pages, go to http://www.lenovo.com/support/ and follow the instructions. Calling for service If you have tried to correct the problem yourself and still need help, during the warranty period you can get help and information by telephone through the Customer Support Center. The following services are available during the warranty period: v Problem determination - Trained personnel are available to assist you with determining if you have a hardware problem and deciding what action is necessary to fix the problem. v Hardware repair - If the problem is determined to be caused by hardware under warranty, trained service personnel are available to provide the applicable level of service. v Engineering Change management - Occasionally, there might be changes that are required after a product has been sold. Lenovo or your reseller, if authorized by Lenovo, will make selected Engineering Changes (ECs) available that apply to your hardware. Note: The following items are not covered: v Replacement or use of parts not manufactured for or by Lenovo or nonwarranted Lenovo parts v Identification of software problem sources v Configuration of BIOS as part of an installation or upgrade v Changes, modifications, or upgrades to device drivers v Installation and maintenance of network operating systems (NOS) v Installation and maintenance of application programs Refer to the warranty and safety information that is provided with your computer for a full explanation of warranty terms. Be sure to retain your proof of purchase to obtain warranty service. For a list of service and support phone numbers for your country or region, go to http://www.lenovo.com/support/ and click Support phone list or refer to the warranty and safety information provided with your computer. Chapter 8. Getting information, help, and service 55