The basic input/output system (BIOS) initializes and checks the status of the hardware at start-up before running the software contained on the hard disk drive. Modern computers store the BIOS on a flash memory chip attached to the motherboard.
Users can change the behavior of the hardware installed on the computer through the BIOS Setup Utility. However, some changes can make the system unstable, preventing it from running properly. Resetting the BIOS configuration can fix any errors occurring because of user changes.
Instructions
Soft Reset
1. Turn on the computer. Press "F2," "Del" or "Esc" to access the BIOS Setup Utility. Check the status message at the top or bottom of the screen, if necessary, to determine access setup.
2. Review the bottom of the screen to determine which key to press to restore optimized or fail-safe defaults. These options are commonly assigned to "F7" or "F9." Press the key as shown on screen to restore default settings.
3. Press "Y" to confirm your changes. Press "F10" to save your settings. Press "Y" to confirm. The computer will exit from the BIOS Setup Utility.
Hard Reset
4. Shut down the computer. Unplug the power cord connected to the back of the case.
5. Remove the devices connected to the input/output panel. Press the "Power" button to drain the motherboard of electric charge.
6. Remove the screws securing the cover panel to the case. Remove the cover panel from the case.
7. Place your hand on unpainted metal surface --- such as the chassis --- to ground yourself.
8. Review your motherboard's manual or diagram to locate the jumpers. Use your fingers or a pair of tweezers to move the jumpers from pins one and two to pins two and three.
9. Wait 30 seconds. The motherboard will clear the BIOS settings. Return the jumpers to their original position. Reassemble the computer.
Tags: BIOS Setup, BIOS Setup Utility, Setup Utility, bottom screen, case Remove, cover panel