Dell Vostro 5490 Service Manual - Page 4

Installing the heatsink assembly-discrete...35 System fan...36 Removing the system fan...36 Installing the system fan...37 Touchpad...38 Removing the touchpad...38 Installing the touchpad...39 Power-adapter port...41 Removing the power-adapter port...41 Installing the power-adapter port...42 System board...43 Removing the system board...43 Installing the system board...44 Power button...47 Removing the power button...47 Installing the power button...48 Power button with fingerprint reader...50 Removing the power button with fingerprint reader 50 Installing the power button with fingerprint reader 51 Display assembly...52 Removing the display assembly...52 Installing the display assembly...56 Palmrest assembly...59 Replacing the palmrest assembly...59 3 System setup...61 Boot menu...61 Navigation keys...61 Boot Sequence...62 System setup options...62 Overview...62 Boot options...63 System information...63 Video...65 Security...65 Passwords...66 Secure boot...67 Performance...67 Power management...68 Wireless...69 POST behavior...69 Virtualization support...69 Maintenance...70 System logs...70 Updating the BIOS in Windows ...70 Updating BIOS on systems with BitLocker enabled 71 Updating your system BIOS using a USB flash drive 71 System and setup password...72 Assigning a system setup password...72 Deleting or changing an existing system setup password 73 4 Contents