15. Connect your computer and devices to electrical outlets, and turn them on.Clearing CMOS Settings1. Follow the procedures in "Before You Begin" on page 21.2. Remove the computer cover.3. Reset the current CMOS settings:a. Locate the password (PSWD) and CMOS (RTCRST) jumpers on the system board (see Clearing Forgotten Passwords).b. Remove the password jumper plug from its pins.c. Place the password jumper plug on the RTCRST pins and wait approximately 5 seconds.d. Remove the jumper plug from the RTCRST pins and place it back on the password pins.4. Replace the computer cover (see "Replacing the Computer Cover" on page 323).5. Connect your computer and devices to electrical outlets, and turn them on.Flashing the BIOSThe BIOS may require flashing when an update is available or when replacing the system board.1. Turn on the computer.2. Locate the BIOS update file for your computer at the Dell Support website at support.dell.com.3. Click Download Now to download the file.4. If the Export Compliance Disclaimer window appears, click Yes, I Accept this Agreement.The File Download window appears.5. Click Save this program to disk, and then click OK.The Save In window appears.6. Click the down arrow to view the Save In menu, select Desktop, and then click Save.The file downloads to your desktop.7. Click Close when the Download Complete window appears.The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.8. Double-click the file icon on the desktop and follow the on-screen instructions.Back to Contents PageCAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.