Resetting the bios can be an operation that presents complications, in fact, very often it is not possible to access the bios due to various factors, such as the fact that you have forgotten the password that opens it.

But first, let’s see what bios are. In essence, bios are the first program that starts when you store your PC, which is not stored on the hard disk, but on a separate chip present in the motherboard. The bios have the task of starting the boot sector of the hard disk, where it is possible to load the first lines of operating system code, typically Windows, into the ram.

Typically the bios are started by pressing a particular button on the keyboard immediately after turning on the computer. You can find this button or this combination of buttons written on the home screen.

It often occurs that for wrong settings in the Bios, such as an incorrect overclock or for some other bad setting, the pc does not start. In these cases, the only thing to do is go to clear the memory of the CMOS  (the chip that contains the Bios in the motherboard) and restore it to the default (initial) settings, and then reset the bios.

To reset the bios we must disconnect the computer from the network and look for the CLEAR CMOS contact (see your motherboard manual). The function of Clear CMOS is to short-circuit the poles to which the battery is connected.

Short-circuiting means closing a circuit with a zero resistance component, which could be a cable or any metallic conductor. If you want to short circuit also use a screwdriver.

Enable the Clear CMOS contact and then disconnect it.

If you do not find this contact, you can proceed as follows:

with the computer disconnected, short-circuit the positive and negative of the battery, after having removed it naturally. The connection between these two poles can also be made with a cable or any metal object and must last about ten seconds.

Reinsert the battery and you’re done.

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