What are CRUs . . . . . . . . . . . . . . . 39
Replace a CRU . . . . . . . . . . . . . . . 39
Computer cover . . . . . . . . . . . . . 40
Front bezel . . . . . . . . . . . . . . . 41
Optical drive . . . . . . . . . . . . . . 42
Hard disk drive . . . . . . . . . . . . . 43
M.2 solid-state drive . . . . . . . . . . . 46
Coin-cell battery. . . . . . . . . . . . . 48
Memory module . . . . . . . . . . . . . 50
PCI Express card . . . . . . . . . . . . 52
Chapter 8. Help and support . . . . . 55
Self-help resources . . . . . . . . . . . . . 55
Call Lenovo . . . . . . . . . . . . . . . . 56
Before you contact Lenovo . . . . . . . . 56
Lenovo Customer Support Center . . . . . . 56
Purchase additional services. . . . . . . . . . 57
Appendix A. Important safety
information . . . . . . . . . . . . . . . 59
Appendix B. Accessibility and
ergonomic information . . . . . . . . 73
Appendix C. Compliance and TCO
Certified information . . . . . . . . . . 77
Appendix D. Notices and
trademarks . . . . . . . . . . . . . . . 89
ii Lenovo V50s-07IMB User Guide
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