4. Remove the 2-pin jumper plug from pins 2 and 3 and fix it on pins 1 and 2.
5. Wait for approximately five seconds to clear the password.
6. Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2 and 3 to enable the password feature.
7. Replace the computer cover (see Replacing the Computer Cover).
8. Connect your computer and devices to electrical outlets, and turn them on.
1. Follow the procedures in Before You Begin.
2. Remove the computer cover (see Removing the Computer Cover).
3. Reset the current CMOS settings:
a. Locate the 3-pin CMOS jumper (CLEAR CMOS) on the system board (see System Board Components).
b. Remove the jumper plug from the CMOS jumper (CLEAR CMOS) pins 2 and 3.
c. Place the jumper plug on the CMOS jumper (CLEAR CMOS) pins 1 and 2 and wait approximately five seconds.
d. Remove the jumper plug and replace it on the CMOS jumper (CLEAR CMOS) pins 2 and 3.
4. Replace the computer cover (see Replacing the Computer Cover).
5. Connect your computer and devices to electrical outlets, and turn them on.
The 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.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located that shipped with your computer.
NOTICE: The computer must be disconnected from the electrical outlet to clear the CMOS setting.