Dell P105F Service Manual page 4

Installing the power-adapter port............................................................................................................................38
System board..................................................................................................................................................................... 38
Removing the system board..................................................................................................................................... 38
Installing the system board........................................................................................................................................ 41
Heat sink..............................................................................................................................................................................44
Removing the heat sink..............................................................................................................................................44
Installing the heat sink................................................................................................................................................45
USB board........................................................................................................................................................................... 47
Removing the USB board.......................................................................................................................................... 47
Installing the USB board............................................................................................................................................ 47
I/O board.............................................................................................................................................................................48
Removing the I/O board............................................................................................................................................ 48
Installing the I/O board.............................................................................................................................................. 49
Power button..................................................................................................................................................................... 50
Removing the power button.....................................................................................................................................50
Installing the power button........................................................................................................................................51
Palm-rest and keyboard assembly................................................................................................................................ 52
Removing the palm-rest and keyboard assembly................................................................................................ 52
Installing the palm-rest and keyboard assembly.................................................................................................. 53
Chapter 3: Drivers and downloads............................................................................................... 55
Chapter 4: System setup............................................................................................................. 56
Entering BIOS setup program........................................................................................................................................ 56
Navigation keys................................................................................................................................................................. 56
One time boot menu......................................................................................................................................................... 57
System setup options.......................................................................................................................................................57
Updating the BIOS in Windows .................................................................................................................................... 65
Updating BIOS on systems with BitLocker enabled........................................................................................... 65
Updating your system BIOS using a USB flash drive......................................................................................... 65
Updating the Dell BIOS in Linux and Ubuntu environments................................................................................... 66
Flashing the BIOS from the F12 One-Time boot menu............................................................................................ 66
System and setup password...........................................................................................................................................67
Assigning a system setup password....................................................................................................................... 67
Deleting or changing an existing system setup password.................................................................................68
Clearing CMOS settings............................................................................................................................................ 68
Clearing BIOS (System Setup) and System passwords.....................................................................................68
Chapter 5: Troubleshooting.........................................................................................................69
SupportAssist diagnostics...............................................................................................................................................69
System diagnostic lights..................................................................................................................................................69
Recovering the operating system................................................................................................................................. 70
Flashing the BIOS.............................................................................................................................................................. 70
Flashing BIOS (USB key)..................................................................................................................................................71
Backup media and recovery options..............................................................................................................................71
Drain residual flea power (perform hard reset).......................................................................................................... 71
WiFi power cycle................................................................................................................................................................72
Chapter 6: Getting help and contacting Dell................................................................................ 73
4 Contents