eMachines EL1852 eMachines EL1852 Service Guide - Page 71

Clearning CMOS, To clear the CMOS data

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Clearning CMOS You may need to clear the Setup configuration values (CMOS) if the configuration has been corrupted, or if incorrect settings made in the Setup Utility caused error messages to be unreadable. This procedure will clear the BIOS supervisor password as well. Use the CLR_CMOS jumper to clear the CMOS data. • 1-2 position: Normal operation (default) • 2-3 position: Clear CMOS data To clear the CMOS data: 1. Turn off the power to the computer and all peripherals. 2. Unplug the power cord from the computer. 3. Unplug the network cable and all connected peripheral devices from the computer. 4. Place the computer on a flat, steady surface. 5. Remove the side panel. 6. If necessary, remove any expansion boards, assemblies or cables that prevent access to the CMOS clear jumper. 7. Locate the clear CMOS jumper on the mainboard. 8. Remove the jumper block and set it over the 2-3 pins for 20 to 30 seconds. 9. Return the jumper block to its default 1-2 position. 10. Reinstall any expansion board, peripheral, and system cables that have previously been removed. 11. Reinstall the side panel. 12. Connect the AC power cord to the system. 13. Press the power button to turn on the computer. 14. During POST, press Delete to access the Setup Utility. 15. Press F9 to load the system default values. 16. Press F10 to save the changes you made and close the Setup Utility. EL1852 Service Guide 63

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EL1852 Service Guide
63
Clearning CMOS
You may need to clear the Setup configuration values (CMOS) if the configuration has been corrupted, or if
incorrect settings made in the Setup Utility caused error messages to be unreadable. This procedure will clear
the BIOS supervisor password as well.
Use the CLR_CMOS jumper to clear the CMOS data.
•
1-2 position: Normal operation (default)
•
2-3 position: Clear CMOS data
To clear the CMOS data:
1.
Turn off the power to the computer and all peripherals.
2.
Unplug the power cord from the computer.
3.
Unplug the network cable and all connected peripheral devices from the computer.
4.
Place the computer on a flat, steady surface.
5.
Remove the side panel.
6.
If necessary, remove any expansion boards, assemblies or cables that prevent access to the CMOS clear
jumper.
7.
Locate the clear CMOS jumper on the mainboard.
8.
Remove the jumper block and set it over the 2-3 pins for 20 to 30 seconds.
9.
Return the jumper block to its default 1-2 position.
10.
Reinstall any expansion board, peripheral, and system cables that have previously been removed.
11.
Reinstall the side panel.
12.
Connect the AC power cord to the system.
13.
Press the power button
to turn on the computer.
14.
During POST, press
Delete
to access the Setup Utility.
15.
Press
F9
to load the system default values.
16.
Press
F10
to save the changes you made and close the Setup Utility.