Dell OptiPlex 5490 All-In-One - default chapter; Table of Contents

Chapter 1: Safety instructions.......................................................................................................6
Before working inside your computer.............................................................................................................................6
Before you begin ........................................................................................................................................................... 7
Safety precautions.............................................................................................................................................................. 7
Electrostatic discharge—ESD protection......................................................................................................................7
ESD field service kit ........................................................................................................................................................... 8
Transporting sensitive components................................................................................................................................ 9
After working inside your computer................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Stand..................................................................................................................................................................................... 14
Removing the fixed stand.......................................................................................................................................... 14
Installing the fixed stand............................................................................................................................................ 15
Removing the height adjustable stand.................................................................................................................... 17
Installing the height adjustable stand...................................................................................................................... 18
Cable cover—optional...................................................................................................................................................... 19
Removing the cable cover......................................................................................................................................... 19
Installing the cable cover........................................................................................................................................... 22
Back cover.......................................................................................................................................................................... 25
Removing the back cover..........................................................................................................................................25
Installing the back cover............................................................................................................................................ 27
Hard drive............................................................................................................................................................................ 31
Removing the hard drive............................................................................................................................................ 31
Installing the hard drive..............................................................................................................................................32
Memory modules............................................................................................................................................................... 35
Removing the memory modules...............................................................................................................................35
Installing the memory modules.................................................................................................................................36
System-board shield......................................................................................................................................................... 38
Removing the system-board shield.........................................................................................................................38
Installing the system-board shield...........................................................................................................................39
Solid-state drive................................................................................................................................................................. 41
Removing the M.2 2230 solid-state drive..............................................................................................................41
Installing the M.2 2230 solid-state drive............................................................................................................... 43
Removing the M.2 2280 solid-state drive/Intel Optane memory moduleRemoving the M.2 2280
solid-state drive....................................................................................................................................................... 44
Installing the M.2 2280 solid-state drive/Intel Optane memory moduleInstalling the M.2 2280
solid-state drive....................................................................................................................................................... 45
System fan.......................................................................................................................................................................... 47
Removing the system fan.......................................................................................................................................... 47
Installing the system fan............................................................................................................................................ 48
Coin-cell battery................................................................................................................................................................50
Removing the coin-cell battery................................................................................................................................50
Installing the coin-cell battery...................................................................................................................................51
Contents
Contents 3