Chapter 1: Working inside your computer...................................................................................... 5
Before working inside your computer.............................................................................................................................5
Before you begin ...........................................................................................................................................................5
Safety instructions.............................................................................................................................................................. 5
Electrostatic discharge—ESD protection..................................................................................................................... 6
ESD field service kit ...........................................................................................................................................................6
Transporting sensitive components................................................................................................................................ 7
After working inside your computer................................................................................................................................7
Chapter 2: Removing and installing components........................................................................... 8
Recommended tools........................................................................................................................................................... 8
Screw list............................................................................................................................................................................... 8
Major components of G15 5520 ..................................................................................................................................... 9
Disassembly and reassembly ........................................................................................................................................... 11
Base cover...................................................................................................................................................................... 11
Battery............................................................................................................................................................................ 15
Solid-state drives..........................................................................................................................................................17
Wireless card................................................................................................................................................................. 21
Memory module........................................................................................................................................................... 23
Touchpad.......................................................................................................................................................................24
Speakers........................................................................................................................................................................ 26
Rear cover.....................................................................................................................................................................28
Display assembly..........................................................................................................................................................30
Power button................................................................................................................................................................34
Power-adapter port.................................................................................................................................................... 36
System board................................................................................................................................................................38
Fan and heat-sink assembly......................................................................................................................................42
USB board..................................................................................................................................................................... 44
I/O board....................................................................................................................................................................... 46
Palm-rest and keyboard assembly...........................................................................................................................48
Chapter 3: Drivers and downloads................................................................................................51
Chapter 4: System setup.............................................................................................................52
Entering BIOS setup program........................................................................................................................................ 52
Navigation keys..................................................................................................................................................................52
System setup options.......................................................................................................................................................53
System and setup password.......................................................................................................................................... 60
Assigning a system setup password........................................................................................................................ 61
Deleting or changing an existing system setup password..................................................................................61
Clearing CMOS settings............................................................................................................................................. 61
Clearing BIOS (System Setup) and System passwords.....................................................................................62
Updating the BIOS............................................................................................................................................................ 62
Updating the BIOS in Windows................................................................................................................................62
Contents
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