Service Manual

Deleting or changing an existing system and or setup password
Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System
and/or Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is Locked.
To enter the System Setup, press F2 immediately after a power-on or reboot.
1. 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 promoted. If you delete the
System and/or Setup password, confirm the deletion when promoted.
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 reboots.
Clearing CMOS Settings
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working
inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting.
1. Lay the system on the right side.
2. Remove the stability foot.
3. Remove the left and right side-panels. See “Removing the side panels”.
4. Locate the CMOS jumper (RTC_CLR1) on the system board. See “system-board components”.
5. Remove the jumper plug from pins 2 and 3.
6. Fix it on pins 1 and 2.
7. Wait for approximately five seconds to clear the CMOS setting.
8. Remove the jumper plug from pins 1 and 2 and replace it on pins 2 and 3.
9. Replace the left and right side-panels. See “Replacing the side panels”.
10.Replace the stability foot.
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