Installing the display...................................................................................................................... 39Input/Output(I/O) board.....................................................................................................................40Removing the I/O board...............................................................................................................40Installing the I/O board................................................................................................................. 42Driving board.......................................................................................................................................42Removing the driving board......................................................................................................... 42Installing the driving board........................................................................................................... 43Battery connector............................................................................................................................... 43Removing the battery connector................................................................................................. 43Installing the battery connector................................................................................................... 44System board...................................................................................................................................... 44Removing the system board.........................................................................................................44Installing the system board........................................................................................................... 47Power connector................................................................................................................................ 48Removing the power connector.................................................................................................. 48Installing the power connector.................................................................................................... 48Camera................................................................................................................................................ 49Removing the camera...................................................................................................................49Installing the camera.....................................................................................................................494 Diagnostics...........................................................................................................51Enhanced Pre-Boot System Assessment (ePSA) diagnostics............................................................ 51Running the ePSA diagnostics.......................................................................................................51Device status lights..............................................................................................................................52Battery Status Lights............................................................................................................................525 Using your computer......................................................................................... 53Using the backlit keyboard................................................................................................................. 53Turning the keyboard backlight on/off or adjusting brightness..................................................53Changing the keyboard backlight color.......................................................................................53Customizing the backlit keyboard in System Setup (BIOS)......................................................... 54Function Fn key lock features.......................................................................................................54Stealth mode....................................................................................................................................... 55Turning stealth mode on/off.........................................................................................................55Disabling stealth mode in the system setup (BIOS)..................................................................... 55Enabling and disabling the wireless (WiFi) feature.............................................................................566 Technology and components.......................................................................... 57Power adapter..................................................................................................................................... 57Processors........................................................................................................................................... 57Identifying processors in Windows 10..........................................................................................57Identifying processors in Windows 8............................................................................................575