Dell OptiPlex 7071 Tower Service Manual

Also see for D28M: Setup and specifications Setup and specifications Setup and specifications Setup and specifications guide Service manual

Contents

Dell OptiPlex 7071 Tower Service Manual Manual pdf 78 page image

About this taskTo enter the System Setup, press F2 immediately after a power-on or reboot.Steps1. In the System BIOS or System Setup screen, select System Security and press Enter.The System Security screen is displayed.2. In the System Security screen, verify that Password Status is Unlocked.3. Select System Password, alter or delete the existing system password and press Enter or Tab.4. Select Setup Password, alter or delete the existing setup password and press Enter or Tab.NOTE: If you change the System and/or Setup password, re-enter the new password when prompted. If you deletethe System and/or Setup password, confirm the deletion when prompted.5. Press Esc and a message prompts you to save the changes.6. Press Y to save the changes and exit from System Setup.The computer reboot.Clearing CMOS settingsAbout this taskCAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.Steps1. Remove the left-side cover.2. Remove the graphics card.3. Remove the jumper plug from the password jumper-pins (PSWD) and connect it to the CMOS jumper-pins.4. Wait for 5 seconds and then replace the jumper plug to its original location.5. Install the graphics card.6. Install the left-side cover.Clearing BIOS (System Setup) and System passwordsAbout this taskCAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.Steps1. Remove the left-side cover.2. Remove the graphics card.3. Remove the jumper plug from the password jumper-pins (PSWD).4. Wait for 5 seconds and then replace the jumper plug to its original location.5. Install the graphics card.6. Install the left-side cover.Updating the BIOS in WindowsPrerequisitesIt is recommended to update your BIOS (System Setup), when you replace the system board or if an update is available. For laptops,ensure that your computer battery is fully charged and connected to a power outlet.78 System setup