Lenovo ThinkCentre M720 Bruksanvisning

Lenovo Skrivbord ThinkCentre M720

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Sida 1/86

M720t User Guide and Hardware Maintenance

Manual

Energy Star Machine Types: 10SQ, 10SR, 10SS, 10TQ, 10U4, and

10U5

Note: Before using this information and the product it supports, be sure to read and understand the

Important Product Information Guide and Appendix A “Notices” on page 77.

Third Edition (August 2019)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services

Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-

35F-05925.

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

Locking the computer cover . . . . . . . . . . . 9

Enabling or disabling the E-lock . . . . . . . . . 9

Attaching a Kensington-style cable lock . . . . . 10

Attaching a smart cable clip . . . . . . . . . . 10

Chapter 4. Replacing hardware . . . . 13

Before replacing hardware . . . . . . . . . . 13

Knowing FRUs (including CRUs) . . . . . . . . 13

Locating FRUs (including CRUs) . . . . . . . . 14

Replacing the keyboard or wireless keyboard . . . 16

Replacing the mouse or wireless mouse . . . . . 17

Replacing the power cord . . . . . . . . . . . 21

Replacing the dust shield . . . . . . . . . . . 22

Removing the computer cover . . . . . . . . . 23

Replacing the front bezel . . . . . . . . . . . 23

Replacing the optical drive . . . . . . . . . . 24

Replacing the optical drive bracket . . . . . . . 25

Replacing the storage drive . . . . . . . . . . 26

Replacing a memory module. . . . . . . . . . 31

Replacing a PCI Express card . . . . . . . . . 34

Replacing the Wi-Fi card . . . . . . . . . . . 36

Replacing the M.2 solid-state drive . . . . . . . 38

Replacing the M.2 solid-state drive bracket . . . . 45

Replacing the power supply assembly . . . . . . 46

Replacing the Wi-Fi antennas . . . . . . . . . 48

Replacing the internal speaker . . . . . . . . . 51

Replacing the front fan . . . . . . . . . . . . 53

Replacing the illuminated red dot cable . . . . . 55

Replacing the thermal sensor . . . . . . . . . 57

Replacing the front I/O bracket . . . . . . . . . 58

Replacing the power button . . . . . . . . . . 60

Replacing the card reader board . . . . . . . . 61

Replacing the heat sink and fan assembly . . . . 62

Replacing the microprocessor . . . . . . . . . 64

Replacing the coin-cell battery . . . . . . . . . 67

Replacing the E-lock . . . . . . . . . . . . . 69

Replacing the cover presence switch . . . . . . 70

Replacing the rear fan . . . . . . . . . . . . 72

Replacing the system board . . . . . . . . . . 73

Completing the parts replacement . . . . . . . 74

Appendix A. Notices . . . . . . . . . . 77

Appendix B. Trademarks . . . . . . . 79

Produktspecifikationer

Varumärke:	Lenovo
Kategori:	Skrivbord
Modell:	ThinkCentre M720
Färg på produkten:	Blauw
Vikt:	1006 g
Bredd:	170.18 mm
Djup:	173.73 mm
Höjd:	73.4 mm
Korrekt användning:	DJ
Bithastighet:	24 Bit
Samplingshastighet:	44.1 kHz
Strömförbrukning (typiskt):	9 W