IBM ThinkPad R50 Series Service And Troubleshooting Manual page 49

Engineering change management - Occasionally, there might be changes
that are required after a product has been sold. IBM or your reseller, if
authorized by IBM, will make selected Engineering Changes (ECs) available
that apply to your hardware.
The following items are not covered:
Replacement or use of non-IBM parts or nonwarranted IBM parts
Note: All warranted parts contain a 7-character identification in the format
IBM FRU XXXXXXX
Identification of software problem sources
Configuration of BIOS as part of an installation or upgrade
Changes, modifications, or upgrades to device drivers
Installation and maintenance of network operating systems (NOS)
Installation and maintenance of application programs
Refer to your IBM hardware warranty for a full explanation of IBM warranty
terms. Be sure to retain your proof of purchase to obtain warranty service.
If possible, be near your computer when you make your call in case the
technical assistance representative needs to help you resolve a computer
problem. Please ensure that you have downloaded the most current drivers
and system updates, run diagnostics, and recorded information before you
call. When calling for technical assistance, please have the following
information available:
Machine Type and Model
Serial numbers of your computer, monitor, and other components, or your
proof of purchase
Description of the problem
Exact wording of any error messages
Hardware and software configuration information for your system
Getting help and service
Chapter 3. Getting help and service from IBM
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