Accessing BIOS Without a Mouse and Keyboard

Accessing your BIOS settings during boot-up can be crucial for system configuration, especially when dealing with disabled USB ports. However, if the USB ports are disabled and you cannot access them to enable them back, you have a few tried-and-true methods to try. This guide will walk you through these methods to ensure you can gain access to your BIOS.

Method 1: Using a PS/2 Keyboard

If your computer comes with a PS/2 port, you can use a PS/2 keyboard to access the BIOS settings. PS/2 keyboards operate through a different connection than USB and can function even when USB ports are disabled, making them a reliable alternative. Simply plug the PS/2 keyboard into the available port and use it to enter the BIOS setup menu.

Steps:

Locate the PS/2 port on your computer or desktop. Plug in the PS/2 keyboard. During boot-up, press the correct key or key combination to enter the BIOS (commonly Del, Esc, F2, or F10). Use the keyboard to navigate and make necessary adjustments.

Method 2: Resetting BIOS Settings

Another effective solution for accessing BIOS when USB ports are disabled is to perform a CMOS reset. This method involves resetting the BIOS to its default settings, which should enable the USB ports and allow you to reconfigure them.

Removing the CMOS Battery: Power down the computer and unplug it. Open the computer case. Locate and remove the CMOS battery from the motherboard. Wait a few minutes before reinserting the battery. Using a Jumper (if applicable): Consult your motherboard manual to locate the CMOS reset jumper. Remove the jumper to perform the reset. Replace the jumper according to the instructions in your manual.

Once you have performed the CMOS reset, reboot your PC and enter the BIOS. Check if your USB ports have been enabled. If not, you may need to set the default configuration. Follow the BIOS menu instructions to load the default settings and save your changes.

When All Else Fails

If the above methods do not work, or if your motherboard does not support them, it is best to consult the original equipment manufacturer (OEM) for further assistance. They can provide specific instructions and solutions tailored to your system.

References:

[1] How to get into BIOS when USB keyboard is not powered and have no PS/2 ports (Super User) [2] How to enable USB in BIOS when its already disabled (Toms Hardware Forum) [3] Solved: Accidentally Disabled All My USB Port (HP Support Community - 7258302)