Lenovo ThinkCentre M920t - Default Chapter; Table of Contents

Contents
Chapter 1. Overview. . . . . . . . . . . 1
Front view . . . . . . . . . . . . . . . . . . 1
Rear view . . . . . . . . . . . . . . . . . . 3
System board . . . . . . . . . . . . . . . . 5
Machine type and model label . . . . . . . . . . 6
Chapter 2. Specifications . . . . . . . . 7
Chapter 3. Computer locks . . . . . . . 9
Enabling or disabling the E-lock . . . . . . . . . 9
Locking the computer cover . . . . . . . . . . 10
Attaching a Kensington-style cable lock . . . . . 11
Attaching a cable lock . . . . . . . . . . . . 12
Chapter 4. Replacing hardware . . . . 13
Before replacing hardware . . . . . . . . . . 13
Knowing FRUs (including CRUs) . . . . . . . . 13
Locating FRUs (including CRUs) . . . . . . . . 14
Replacing the power cord . . . . . . . . . . . 16
Removing the computer cover . . . . . . . . . 17
Replacing the front bezel . . . . . . . . . . . 18
Pivoting the drive bay assembly upward and
downward . . . . . . . . . . . . . . . . . 19
Replacing the computer handle . . . . . . . . 20
Replacing the optical drive . . . . . . . . . . 22
Replacing the power button . . . . . . . . . . 23
Replacing the card reader . . . . . . . . . . . 24
Replacing the front I/O bracket . . . . . . . . . 26
Replacing the front fan . . . . . . . . . . . . 27
Replacing the illuminated red dot . . . . . . . . 28
Replacing the thermal sensor . . . . . . . . . 29
Replacing the internal speaker . . . . . . . . . 30
Replacing the storage drive . . . . . . . . . . 31
Replacing the memory module . . . . . . . . . 43
Replacing the coin-cell battery . . . . . . . . . 44
Replacing a PCI Express card . . . . . . . . . 46
Replacing the M.2 storage drive . . . . . . . . 47
Replacing the M.2 storage drive bracket . . . . . 50
Replacing the Wi-Fi card . . . . . . . . . . . 51
Replacing the Wi-Fi antennas . . . . . . . . . 55
Replacing the heat sink and fan assembly . . . . 58
Replacing the power supply assembly . . . . . . 59
Replacing the microprocessor . . . . . . . . . 61
Replacing the E-lock . . . . . . . . . . . . . 63
Replacing the cover presence switch . . . . . . 64
Replacing the rear fan . . . . . . . . . . . . 65
Replacing the system board . . . . . . . . . . 67
Completing the parts replacement . . . . . . . 68
Appendix A. Notices. . . . . . . . . . 71
Appendix B. Trademarks . . . . . . . 73
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