Dell Inspiron 3521 - default chapter; Table of Contents

Chapter 1: Working inside your computer...................................................................................... 6
Safety instructions.............................................................................................................................................................. 6
Before working inside your computer.......................................................................................................................6
Safety precautions.........................................................................................................................................................7
Electrostatic discharge—ESD protection................................................................................................................7
ESD field service kit ..................................................................................................................................................... 8
Transporting sensitive components.......................................................................................................................... 9
After working inside your computer..........................................................................................................................9
BitLocker..........................................................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of Inspiron 15 3521..........................................................................................................................11
Secure Digital (SD) Card..................................................................................................................................................13
Removing the secure digital card ............................................................................................................................13
Installing the secure digital card ..............................................................................................................................13
Base cover........................................................................................................................................................................... 14
Removing the base cover...........................................................................................................................................14
Installing the base cover ............................................................................................................................................17
Battery..................................................................................................................................................................................18
Lithium-ion battery precautions............................................................................................................................... 18
Removing the 3-cell battery .....................................................................................................................................19
Installing the 3-cell battery ...................................................................................................................................... 20
Removing the 4-cell battery .....................................................................................................................................21
Installing the 4-cell battery ...................................................................................................................................... 22
Memory module................................................................................................................................................................. 23
Removing the memory module ............................................................................................................................... 23
Installing the memory module ..................................................................................................................................24
M.2 solid-state drive.........................................................................................................................................................25
Removing the M.2 2230 solid-state drive ............................................................................................................25
Installing the M.2 2230 solid-state drive ..............................................................................................................26
Removing the M.2 2280 solid-state drive ............................................................................................................28
Installing the M.2 2280 solid-state drive ..............................................................................................................29
2.5-inch hard drive............................................................................................................................................................30
Removing the 2.5-inch hard drive ..........................................................................................................................30
Installing the 2.5-inch hard drive .............................................................................................................................31
Wireless card...................................................................................................................................................................... 33
Removing the wireless card .....................................................................................................................................33
Installing the wireless card .......................................................................................................................................34
Speakers..............................................................................................................................................................................35
Removing the speakers ............................................................................................................................................ 35
Installing the speakers ...............................................................................................................................................36
System board thermal plate............................................................................................................................................38
Contents
Contents 3