Chapter 1: Working inside your computer...................................................................................... 5
Safety instructions.............................................................................................................................................................. 5
Before working inside your computer.......................................................................................................................5
Safety precautions........................................................................................................................................................ 6
Electrostatic discharge—ESD protection............................................................................................................... 6
ESD field service kit ..................................................................................................................................................... 7
Transporting sensitive components.......................................................................................................................... 8
After working inside your computer..........................................................................................................................8
Chapter 2: Removing and installing components........................................................................... 9
Recommended tools........................................................................................................................................................... 9
Screw list............................................................................................................................................................................... 9
Major components of Inspiron 7620 2-in-1..................................................................................................................10
Disassembly and reassembly .......................................................................................................................................... 12
Base cover..................................................................................................................................................................... 12
Memory...........................................................................................................................................................................15
Solid-state drive........................................................................................................................................................... 18
Wireless card................................................................................................................................................................. 21
Fan.................................................................................................................................................................................. 24
Side speakers................................................................................................................................................................25
Front speakers..............................................................................................................................................................27
Coin-cell battery...........................................................................................................................................................31
Battery........................................................................................................................................................................... 33
Heat sink........................................................................................................................................................................ 37
I/O board....................................................................................................................................................................... 42
Power-button board................................................................................................................................................... 43
Power button with fingerprint reader.................................................................................................................... 45
Display assembly.......................................................................................................................................................... 47
Display board................................................................................................................................................................ 50
System board................................................................................................................................................................ 51
Palm-rest and keyboard assembly...........................................................................................................................56
Chapter 3: Drivers and downloads............................................................................................... 60
Chapter 4: BIOS setup................................................................................................................. 61
BIOS overview.................................................................................................................................................................... 61
Entering BIOS setup program.........................................................................................................................................61
Navigation keys.................................................................................................................................................................. 61
One time boot menu.........................................................................................................................................................62
System setup options.......................................................................................................................................................62
System and setup password...........................................................................................................................................66
Assigning a system setup password....................................................................................................................... 67
Deleting or changing an existing system setup password................................................................................. 67
Clearing BIOS (System Setup) and System passwords.....................................................................................67
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