Dell OptiPlex 7071 Tower Tower Service Manual - Page 80

Clearing CMOS settings, Clearing BIOS (System Setup) and System passwords

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About this task To enter the System Setup, press F2 immediately after a power-on or reboot. Steps 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 prompted. If you delete the System and 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 restarts. Clearing CMOS settings About this task CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer. Steps 1. 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 passwords About this task CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer. Steps 1. 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 Windows Prerequisites It 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 before initiating a BIOS update. 80 System setup

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About this task
To enter the System Setup, press F2 immediately after a power-on or reboot.
Steps
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 prompted. If you delete
the System and 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 restarts.
Clearing CMOS settings
About this task
CAUTION:
Clearing CMOS settings will reset the BIOS settings on your computer.
Steps
1.
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 passwords
About this task
CAUTION:
Clearing CMOS settings will reset the BIOS settings on your computer.
Steps
1.
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 Windows
Prerequisites
It 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 before initiating a BIOS update.
80
System setup