Dell Inspiron 5490 Service Manual - Page 4

Installing the display assembly...36 Coin-cell battery...39 Removing the coin-cell battery...39 Installing the coin-cell battery...40 Speakers...41 Removing the speakers...41 Installing the speakers...41 Power-adapter port...42 Removing the power-adapter port...42 Installing the power-adapter port...43 Power button...44 Removing the power-button board...44 Installing the power-button board...45 Power button with fingerprint reader (optional)...47 Removing the power button with fingerprint reader (optional 47 Installing the power button with fingerprint reader (optional 48 System board...50 Removing the system board...50 Installing the system board...52 Palm-rest and keyboard assembly...53 Removing the palm-rest and keyboard assembly...53 Installing the palm-rest and keyboard assembly...54 3 Device drivers...55 Intel Chipset Software Installation Utility...55 Video drivers...55 Intel Serial IO driver...55 Intel Trusted Execution Engine Interface...55 Intel Virtual Button driver...55 Wireless and Bluetooth drivers...55 4 System setup...56 BIOS overview...56 Entering BIOS setup program...56 Navigation keys...56 Boot Sequence...57 System setup options...57 System and setup password...64 Assigning a system setup password...65 Deleting or changing an existing system setup password 65 Clearing CMOS settings...66 Clearing BIOS (System Setup) and System passwords 66 5 Troubleshooting...67 Enhanced Pre-Boot System Assessment (ePSA) diagnostics 67 Running the ePSA diagnostics...67 System diagnostic lights...67 Recovering the operating system...68 Flashing BIOS (USB key)...68 4 Contents