BIOS clearing is usually understood as clearing SMOS and resetting all settings to factory defaults. This may be needed, for example, in order to resolve hardware compatibility issues or to reset a password. There are three ways to clear BIOS, each of which is as good as any other, but you may find one easier and more convenient in a specific situation.
Necessary
Operating system computer, SMOS battery, small Phillips screwdriver
Instructions
Step 1
The fastest and most convenient way to clear the BIOS is to use a special option that is built into it. Go to Bios. To do this, hold down the DEL key when starting the computer (sometimes these can be the function keys F1, F2 or F10). In the "BIOS setup" menu, find "Reset BIOS Settings". This option may have different names depending on the board model. Look for names like "reset to default", "factory default", "clear BIOS", "load setup defaults". Typically, this option is at the end of the menu, on the very last tab.
Step 2
Select this setting and press Enter. The system will prompt you to confirm your choice and then reset all settings to factory defaults. This is often accompanied by exiting the BIOS and restarting the computer. If for some reason you cannot find this option, or you cannot enter BIOS, use other methods.
Step 3
Method two. Make sure the computer is completely powered off. Open the side cover to access the motherboard. Find the SMOS battery (it is a coin-sized circular coin cell) and remove it. Removing the battery is easy enough - just grab it with your fingers and pull it up. Some boards have a clip that holds the battery in place. In this case, bend the clip with one hand and remove the battery with the other. In this case, you need to be careful and not make excessive efforts so as not to damage anything. After 5-10 minutes, reinsert the battery and close the side cover of the computer.
Step 4
Method three. Unplug the computer completely. Open the side cover to access the motherboard. Find the jumpers to reset SMOS. The exact location of the jumpers may vary depending on the motherboard. Ideally, you should consult the documentation. If documentation is not available, look for three or four jumpers near the SMOS battery.
Step 5
Rearrange the jumpers. If your model has three jumpers, close the second and third, if four - the third and fourth contacts. Turn on the computer and make sure that the settings have been reset and the BIOS is cleared. Turn off your computer. Then return the jumper to its original position and close the computer cover.
