: Unplug the power adapter, monitor cables, network lines, and all USB devices.
Follow this step-by-step technical guide to safely reset your system. ⚠️ Important Precautions Before You Begin
How to Reset the BIOS Password on a Lenovo ThinkCentre M720q Go to product viewer dialog for this item.
Place the computer on a clean, flat, non-conductive surface like a wooden desk. Required Tools A standard Phillips-head (#2) screwdriver.
). Note that you will need to reconfigure any custom BIOS settings (e.g., date/time). Method 2: Replacing the CMOS Battery lenovo thinkcentre m720q bios password reset
Unplug the power adapter, monitor cables, and all USB devices.
If you have an external Wi-Fi antenna, unscrew and remove it. Step 2: Open the Chassis
is set and remains after a CMOS clear, the motherboard may require professional service or replacement, as Lenovo designs these for high security. Hardware Maintenance Manual
: Ensure the jumper made proper metal-to-metal contact with Pins 2 and 3 when you turned the machine on. : Unplug the power adapter, monitor cables, network
The system will turn on, and you may hear a series of beeps. It will not boot into Windows normally. Instead, it will clear the non-volatile BIOS password storage.
from its standard position (covering pins 1 and 2) to the maintenance position (covering pins 2 and 3).
Leave the battery disconnected for at least 15 to 30 minutes to allow the capacitor to discharge fully. Re-insert the battery. Power on the system. Troubleshooting: What if the Password Remains?
Unplug the power adapter from the wall or back of the PC once again. Step 5: Return the Jumper to the Normal Position Locate the jumper block on . Place the computer on a clean, flat, non-conductive
Turn on the computer and immediately tap to enter the BIOS Setup Utility .
Carefully pull the plastic jumper block straight up off the pins. Move the jumper block over by one pin. Place it onto (Maintenance / Clear CMOS mode). Press it down firmly to secure the connection. Step 5: Boot and Clear the Password
Carefully pull the plastic jumper block straight up off the pins using your fingers or tweezers.
Slide the top cover toward the back of the machine and lift it off to expose the internal components. Step 3: Locate the CMOS Clear Jumper