The system may not display anything but should emit a series of beeps (usually double beeps).
The jumper is normally on pins 5-6 (or 1-2 depending on the label).
How to Reset the BIOS Password on a Lenovo ThinkCentre M720q Go to product viewer dialog for this item. Resetting a forgotten BIOS password on a Lenovo ThinkCentre M720q
Disconnect the power again and move the jumper back to its original position.
Reassemble the case, reconnect your peripherals, and power on. Press F1 or Fn+F1 during the logo screen to enter the BIOS and confirm the password prompt is gone. Alternative Method: Removing the CMOS Battery
Required to change settings within the BIOS menu.
Find the JP35 jumper block on the motherboard. On the
Move it to the (often covering pins 2-4 or 2-3). Trigger the Reset: Reconnect the power cable and turn the computer on.
