User's Guide

Memory module . . . . . . . . . . . . . 49
M.2 solid-state drive . . . . . . . . . . . 50
Coin-cell battery. . . . . . . . . . . . . 52
Chapter 8. Help and support . . . . . 55
Frequently asked questions . . . . . . . . . . 55
Error messages . . . . . . . . . . . . . . . 56
Beep errors . . . . . . . . . . . . . . . . 57
Self-help resources . . . . . . . . . . . . . 58
Call Lenovo . . . . . . . . . . . . . . . . 59
Before you contact Lenovo . . . . . . . . 59
Lenovo Customer Support Center . . . . . . 59
Purchase additional services. . . . . . . . . . 60
Appendix A. Important safety
information . . . . . . . . . . . . . . . 61
Appendix B. Accessibility and
ergonomic information . . . . . . . . 75
Appendix C. Supplemental
information about the Linux operating
system . . . . . . . . . . . . . . . . . 79
Appendix D. Compliance
information . . . . . . . . . . . . . . . 81
Appendix E. Notices and
trademarks . . . . . . . . . . . . . . . 95
ii P1 Gen 3/X1 Extreme Gen 3 User Guide