136 System SetupClearing CMOS SettingsWARNING: Before working inside your computer, read the safety informationthat shipped with your computer and follow the steps in "" on page 9. Foradditional safety best practices information, see the Regulatory ComplianceHomepage at dell.com/regulatory_compliance.WARNING: The computer must be disconnected from the electrical outlet toclear the CMOS setting.1 Remove the stand. See "Removing the Stand" on page 17.2 Remove the back cover. See "Removing the Back Cover" on page 21.3 Remove the VESA-mount bracket.See "Removing the VESA-Mount Bracket" on page 41.4 Remove the system-board shield.See "Removing the System-Board Shield" on page 47.5 Locate the 3-pin CMOS reset jumper (SW50) on the system board.See "System Board Components" on page 14.6 Remove the 2-pin jumper plug from pins 2 and 3 and fix it on pins 1 and 2.7 Wait for approximately five seconds to clear the CMOS setting.8 Remove the 2-pin jumper plug from pins 1 and 2 and replace iton pins 2 and 3.9 Replace the system-board shield.See "Replacing the System-Board Shield" on page 49.10 Replace the VESA-mount bracket.See "Replacing the VESA-Mount Bracket" on page 42.11 Replace the back cover. See "Replacing the Back Cover" on page 22.
