Dell Vostro 7620 Service Manual - Page 3

Contents 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 3