Removing the I/O board............................................................................................................................................40
Installing the I/O board...............................................................................................................................................41
Removing the heat sink ............................................................................................................................................ 42
Installing the heat sink .............................................................................................................................................. 43
Removing the power button.....................................................................................................................................43
Installing the power button....................................................................................................................................... 44
Removing the power-button with fingerprint reader......................................................................................... 45
Installing the power-button with fingerprint reader........................................................................................... 46
Removing the system board..................................................................................................................................... 47
Installing the system board....................................................................................................................................... 50
Removing the palm-rest and keyboard assembly................................................................................................ 54
Installing the palm-rest and keyboard assembly.................................................................................................. 55
Entering BIOS setup program........................................................................................................................................ 57
Navigation keys..................................................................................................................................................................57
One time boot menu......................................................................................................................................................... 57
System setup options.......................................................................................................................................................58
System and setup password...........................................................................................................................................67
Assigning a system setup password....................................................................................................................... 68
Deleting or changing an existing system setup password.................................................................................68
Clearing CMOS settings............................................................................................................................................ 68
Clearing BIOS (System Setup) and System passwords.................................................................................... 69
Updating the BIOS in Windows................................................................................................................................69
Updating the BIOS using the USB drive in Windows..........................................................................................69
Updating the BIOS from the F12 One-Time boot menu.....................................................................................70
Locate the Service Tag or Express Service Code of your Dell computer
...............................................71
System-diagnostic lights..................................................................................................................................................72
SupportAssist diagnostics............................................................................................................................................... 73
Built-in self-test (BIST)................................................................................................................................................... 73
Recovering the operating system..................................................................................................................................74
WiFi power cycle................................................................................................................................................................74
Drain residual flea power (perform hard reset)......................................................................................................... 75
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