25 Replacing the system board.......................................................................................................................46Procedure..........................................................................................................................................................................46Post-requisites..................................................................................................................................................................47Entering the Service Tag in the BIOS setup program..................................................................................................4726 Removing the power button with optional fingerprint reader..................................................................... 48Prerequisites..................................................................................................................................................................... 48Procedure..........................................................................................................................................................................4827 Replacing the power button with optional fingerprint reader......................................................................49Procedure..........................................................................................................................................................................49Post-requisites..................................................................................................................................................................4928 Removing the keyboard............................................................................................................................. 50Prerequisites..................................................................................................................................................................... 50Procedure......................................................................................................................................................................... 5029 Replacing the keyboard.............................................................................................................................. 51Procedure.......................................................................................................................................................................... 51Post-requisites.................................................................................................................................................................. 5130 Removing the palm-rest assembly............................................................................................................. 52Prerequisites..................................................................................................................................................................... 52Procedure..........................................................................................................................................................................5231 Replacing the palm-rest assembly.............................................................................................................. 53Procedure..........................................................................................................................................................................53Post-requisites..................................................................................................................................................................5332 Device drivers............................................................................................................................................ 54Intel Chipset Software Installation Utility...................................................................................................................... 54Video drivers.....................................................................................................................................................................54Intel Serial IO driver..........................................................................................................................................................54Intel Trusted Execution Engine Interface...................................................................................................................... 54Intel Virtual Button driver................................................................................................................................................54Wireless and Bluetooth drivers.......................................................................................................................................5433 System setup.............................................................................................................................................55System setup....................................................................................................................................................................55Entering BIOS setup program........................................................................................................................................ 55Navigation keys................................................................................................................................................................ 55Boot Sequence.................................................................................................................................................................55System setup options......................................................................................................................................................56Clearing CMOS settings.................................................................................................................................................. 61Clearing BIOS (System Setup) and System passwords.............................................................................................. 6134 Troubleshooting......................................................................................................................................... 62Contents 5