To Next Page

To Previous Page

Chapter 1: Working inside your computer...................................................................................... 6

Safety instructions.............................................................................................................................................................. 6

Before working inside your computer.......................................................................................................................6

After working inside your computer..........................................................................................................................9

Chapter 2: Removing and installing components.......................................................................... 10

Recommended tools..........................................................................................................................................................10

Screw list............................................................................................................................................................................. 10

Major components of Vostro 7620.................................................................................................................................11

Base cover........................................................................................................................................................................... 13

Removing the base cover...........................................................................................................................................13

Installing the base cover.............................................................................................................................................15

Memory module.................................................................................................................................................................. 17

Removing the memory module..................................................................................................................................17

Installing the memory module....................................................................................................................................18

Solid-state drive................................................................................................................................................................. 19

Removing the M.2 2230 solid-state drive..............................................................................................................19

Installing the M.2 2230 solid-state drive................................................................................................................ 21

Removing the M.2 2280 solid-state drive............................................................................................................. 22

Installing the M.2 2280 solid-state drive............................................................................................................... 23

Wireless card...................................................................................................................................................................... 24

Removing the wireless card...................................................................................................................................... 24

Installing the wireless card........................................................................................................................................ 25

Battery................................................................................................................................................................................. 27

Lithium-ion battery precautions...............................................................................................................................27

Removing the battery.................................................................................................................................................27

Installing the battery...................................................................................................................................................28

Power-adapter port.......................................................................................................................................................... 29

Removing the power-adapter port......................................................................................................................... 29

Installing the power-adapter port............................................................................................................................30

Fan......................................................................................................................................................................................... 31

Removing the left fan................................................................................................................................................. 31

Installing the left fan...................................................................................................................................................32

Removing the right fan.............................................................................................................................................. 33

Installing the right fan................................................................................................................................................ 34

Heat sink..............................................................................................................................................................................35

Removing the heat sink............................................................................................................................................. 35

Installing the heat sink .............................................................................................................................................. 36

Removing the heat sink (from computers with a discrete graphics card) ...................................................37

Installing the heat sink (in computers with a discrete graphics card)............................................................38

Display assembly................................................................................................................................................................39

Removing the display assembly............................................................................................................................... 39

Installing the display assembly.................................................................................................................................. 41

I/O board.............................................................................................................................................................................42

Contents

Contents 3