Reset the Eeprom BIOS Using the Jumper Method
An Electrically Erasable Programmable Read-Only Memory (Eeprom) BIOS chip holds basic operating instructions for a computer. Over the course of normal usage, this BIOS program may become corrupt and require the settings to be reset to their default state. On certain motherboards this task is accomplished through the use of a jumper pin located parallel to the BIOS battery.
Instructions
1. Unplug the computer from all electrical sources.
2. Remove the side access panel, which may require the removal of two thumbscrews from the back of the case.
3. Locate the BIOS clear pins that are often located parallel to BIOS battery on the motherboard. Refer to the manufacturer's documentation for the precise location on the motherboard.
4. Take note of of the jumper's default orientation. The jumper is a small plastic covering that connects two of the pins.
5. Remove the jumper and move it to the "clear cmos" or "clr_cmos" pins located beside the default jumper location.
6. Leave the jumper in this position for 20 to 30 seconds.
7. Return the jumper to its original location.
8. Replace the side access panel and reconnect the electrical cord.
9. Reboot the computer. The BIOS settings are now at their cleared, default state.
Tags: access panel, BIOS battery, default state, Eeprom BIOS, Jumper Method, located parallel