If you're comfortable with opening your computer's case and working with internal components, you can reset the BIOS password using a jumper on the motherboard.
Warning: Before attempting this method, make sure you have a good understanding of working with computer hardware and take anti-static precautions to prevent damage to your computer's components.
There are third-party tools available that can help you reset the BIOS password on your Lenovo ThinkCentre M720q. One popular tool is Hiren's BootCD.
Warning: Before using a third-party tool, make sure you download it from a reputable source to avoid malware or viruses.
Conclusion
Resetting the BIOS password on your Lenovo ThinkCentre M720q can be a challenging task, but it's doable using one of the methods outlined in this article. Before attempting to reset the BIOS password, make sure you have a good understanding of the risks and take necessary precautions to prevent data loss or damage to your computer's hardware.
If you're still having trouble resetting the BIOS password, you may want to consider contacting Lenovo support or a professional computer technician for assistance.
FAQs
Q: What if I forget the BIOS password on my Lenovo ThinkCentre M720q? A: If you forget the BIOS password, you can reset it using one of the methods outlined in this article.
Q: Can I reset the BIOS password on my Lenovo ThinkCentre M720q without opening the case? A: Yes, you can reset the BIOS password using the BIOS setup utility or a third-party tool without opening the case.
Q: Will resetting the BIOS password erase my data? A: No, resetting the BIOS password will not erase your data. However, it's always a good idea to back up your data regularly to prevent data loss.
Q: Can I use a third-party tool to reset the BIOS password on my Lenovo ThinkCentre M720q? A: Yes, there are third-party tools available that can help you reset the BIOS password on your Lenovo ThinkCentre M720q. However, make sure you download the tool from a reputable source to avoid malware or viruses.
How to Reset the BIOS Password on a Lenovo ThinkCentre M720q Go to product viewer dialog for this item.
Locked out of your BIOS settings? Whether you've forgotten a supervisor password or bought a used unit with a pre-set lock, resetting the BIOS on a Lenovo ThinkCentre M720q
requires a hardware-level intervention. Standard software "factory resets" will not clear a BIOS-level supervisor password. Core Method: The Maintenance Jumper Reset
The most effective way to clear a forgotten BIOS password on the
is by using the Clear CMOS (Maintenance) Jumper located on the system board. Step-by-Step Instructions:
Prepare the System: Turn off the computer, disconnect the power cord, and remove any external cables. Open the Chassis: Slide off the computer cover to access the motherboard.
Locate the Jumper: Find the JP35 jumper block on the system board. On many
models, this is near the top-left corner or close to the Wi-Fi antenna.
Move the Jumper: The jumper is typically on pins 6-5 (standard position). Move it to pins 2-4 (maintenance position).
Tip: Some users report that removing the RAM from the backside is also critical during this specific boot process for the password to clear fully.
Power On: Reconnect the power cord and turn the computer on. You will hear a series of 4-5 beeps (or double beeps), indicating the CMOS is clearing.
Reset to Default: Turn off the computer and disconnect the power. Move the jumper back to its original position (pins 6-5).
Verify: Reassemble the cover and power on. Tap F1 or Fn+F1 during startup to enter the BIOS. The password prompt should no longer appear. Alternatives and Notes Set, change, and remove a password - Lenovo
Lenovo ThinkCentre M720q BIOS Password Reset
If you've forgotten the BIOS password on your Lenovo ThinkCentre M720q, don't worry! Resetting it is a relatively straightforward process. Here's a step-by-step guide to help you regain access to your computer:
Method 1: Using the Reset Header
Method 2: Using a Backdoor Password
Method 3: Contacting Lenovo Support
If the above methods don't work, you may need to contact Lenovo support for further assistance:
Precautions and Warnings
To reset the BIOS password on a Lenovo ThinkCentre M720q , you must use the physical Clear CMOS (Maintenance) jumper
located on the motherboard. This process will clear lost or forgotten power-on and supervisor passwords, though it does apply to hard disk passwords. Preparation and Safety
Before starting, ensure you have a clean workspace and a Phillips-head screwdriver. Power Down
: Turn off the computer and disconnect all cables, including the power adapter. Open the Chassis lenovo thinkcentre m720q bios password reset
: Remove the single screw at the rear and slide the top cover forward to expose the internal components. Static Safety
: Touch a grounded metal object to discharge static electricity before touching any internal parts. Step-by-Step Reset Procedure The M720q uses a specific jumper block, often labeled
, located near the Wi-Fi antenna or corner of the motherboard. Locate the Jumper : Find the Clear CMOS / Maintenance jumper . In its default "Normal" position, the jumper connects pins 6 and 5 (or pins 1 and 2 on some variants). Move to Maintenance Position Disconnect the AC adapter.
Move the jumper from its standard position to the maintenance position (connecting pins 2 and 4
Some users found removing the RAM on the backside during this process critical for a full reset. Power On for Reset Connect the power cord and turn the computer on.
Wait for a series of beeps (typically 2-5 sets). This indicates the BIOS is in maintenance mode and clearing the settings. Let it run for approximately 10 to 30 seconds after the beeps. Finalize the Reset
Turn off the computer by holding the power button for 5 seconds. Disconnect the power cord again. Move the jumper back
to its original standard position (connecting pins 6 and 5 or 1 and 2). Reassemble and Verify Replace the cover and reconnect your peripherals. Power on and repeatedly tap to enter the BIOS Setup.
The password prompt should no longer appear, allowing you to configure new security settings. Alternative: CMOS Battery Method
If the jumper method is inaccessible, you can try a "hard" CMOS reset by removing the internal battery. Remove the CMOS Battery
: Locate the coin-cell battery on the motherboard and remove it. Drain Power
: With the battery removed and power unplugged, hold the power button for 30 seconds to drain residual electricity. : Leave the battery out for at least 15–20 minutes
(some users recommend longer for persistent supervisor passwords) before reinstalling it. Are you currently seeing a specific error code on the screen, or is it just the
Erasing lost or forgotten passwords (clearing CMOS) - Lenovo
To reset the BIOS password on a Lenovo ThinkCentre M720q , the most effective method involves using the physical Clear CMOS jumper (labeled as SW_CLR_CMOS ) on the motherboard
. Simply removing the CMOS battery is often insufficient for modern ThinkCentre models as passwords are frequently stored in non-volatile memory. BIOS Password Reset Procedure
Follow these steps precisely to clear the supervisor or power-on password: M720q-Cmos-Maintenance-Jumper-Position
To reset the BIOS password on a Lenovo ThinkCentre M720q, you must use the physical Clear CMOS jumper on the motherboard. Standard methods like removing the CMOS battery are often ineffective because these models store passwords in non-volatile memory. BIOS Password Reset Procedure
Follow these steps to clear a lost or forgotten BIOS password: Preparation:
Power off the computer and disconnect the power cord and all cables.
Remove the computer cover to access the internal components. Locate the Jumper:
Find the Clear CMOS / Recovery jumper (labeled as JP35 or SW_CLR_CMOS) on the system board.
It is typically located in the top corner near the rear ports or Wi-Fi antenna area. Clear the Password:
Identify the current jumper position (standard is usually pins 1 and 2).
Move the jumper to the maintenance/clear position (pins 2 and 4 or pins 2 and 3, depending on your specific board layout).
Crucial Step: Some users report that removing the RAM on the backside is necessary for the reset to trigger on certain Tiny models. Power Cycle: Plug in the power cord and turn on the computer.
Wait for a series of beeps (usually 4–5 series or a double beep) indicating the CMOS has been cleared.
Power off the system by holding the power button for about 5 seconds. Restore Settings: Unplug the power cord again. Move the jumper back to its original position. Reinstall the RAM (if removed) and the computer cover. Verify: Reconnect all cables and power on the computer.
Repeatedly tap F1 to enter the BIOS menu. The password should now be cleared. Important Considerations
Supervisor Passwords: If a Supervisor Password was set and these hardware steps do not work, the password may be stored in a TPM or security chip that cannot be cleared by simple jumpers.
Official Support: If you cannot clear the password using the jumper, Lenovo Support generally recommends a motherboard replacement for security reasons.
Data Safety: This process resets BIOS settings to factory defaults but does not erase data on your hard drive.
Erasing lost or forgotten passwords (clearing CMOS) - Lenovo
To reset the BIOS password on a Lenovo ThinkCentre M720q, you must physically manipulate a specific jumper on the motherboard known as the Clear CMOS (or Recovery) jumper. Unlike many laptops, simply removing the CMOS battery is often insufficient to clear a supervisor password on this model. The Reset Procedure
For the Lenovo ThinkCentre M720q, the reset involves moving a jumper on the JP35 jumper block (typically located in the top-left corner of the motherboard near the Wi-Fi antenna). If you're comfortable with opening your computer's case
Preparation: Power off the computer and disconnect all cables, including the AC power adapter.
Access the Motherboard: Remove the screw at the back and slide the computer cover forward to expose the internal components.
Locate the Jumper: Find the SW_CLR_CMOS jumper. On this model, it is often part of a larger pin block (JP35). The default position typically connects pins 5 and 6.
Move the Jumper: Move the jumper from its standard position to the maintenance position, connecting pins 2 and 4.
Note: Some community guides suggest removing the RAM on the backside during this process for a more reliable reset.
Trigger the Clear: Reconnect the AC power adapter and press the power button. The system will not display video but should emit a series of beeps (often 4–5 series of double beeps). Revert and Finalize: Power off and disconnect the power again.
Move the jumper back to its original position (pins 5 and 6). Reassemble the unit and reconnect power.
Verify: Power on and press F1 or F12 to enter BIOS. The password prompt should no longer appear, or you may be prompted to set a new one. Important Limitations
Supervisor Passwords: This jumper method is specifically designed to clear "User" and "Supervisor" passwords. However, if a Hard Disk Password is set, this hardware reset will not clear it; you must remember the password or replace the drive.
Authorized Support: If you cannot locate the jumper or the hardware reset fails, Lenovo recommends contacting an authorized service provider, as motherboard replacement may be necessary for security reasons.
The Ghost in the Tiny Box
Marta ran a small IT repair shop out of her garage. She’d seen it all: liquid damage, cracked screens, hard drives clicking their last breaths. But the device sitting on her anti-static mat today was different.
It was a Lenovo ThinkCentre M720q—a tiny, unassuming black box, no bigger than a paperback novel. It belonged to Dr. Elara Vance, a retired cryptographer who had recently passed away. Her nephew, Leo, had brought it in.
“She left it to me in her will,” Leo said, pushing up his glasses. “But there’s a problem. She put a BIOS password on it. A final lock.”
Marta nodded. “A supervisor password. On these ThinkCentres, that’s not a simple CMOS battery pull. It’s stored in flash memory. If we can’t get past it, the machine is a brick.”
Leo handed her a worn, leather-bound notebook. “She left this too. Said to give it to whoever tries to open the computer.”
Marta opened the notebook. It wasn’t code or encryption. It was a story.
“My first computer was a 286. I used to reset its BIOS by shorting two pins with a paperclip. For my M720q, I’ve hidden the master key not in silicon, but in sound.”
Marta’s eyes widened. She knew the trick. On older Lenovo desktops, a specific model of the M720q had a “backdoor” if you knew the right audio pattern. She plugged in a tiny speaker to the motherboard header, booted the machine, and listened.
The POST beeps came: not an error code, but a rhythm. Long, short, short, long. Pause. Short, long, long, short.
She grabbed the notebook again. Dr. Vance had written musical notes next to the beep sequences. Marta translated them into keypresses on a USB keyboard connected to a sacrificial laptop. She generated a “master unlock” hash—a string of characters that looked like ancient runes.
Her hands trembled as she plugged the USB drive containing that hash into the M720q and powered it on.
The Lenovo logo appeared. Then, a silver prompt: “Enter Supervisor Password:”
Marta didn’t type the hash. Instead, she held down the F1 key, then pressed Enter three times slowly, then released F1. The notebook’s final line read: “Old ghosts don’t use keys. They use knocks.”
The screen flickered.
And then, the BIOS menu unfolded before her—a digital treasure chest, opened not by force, but by a story.
Inside, the only file on the desktop was a text document titled: “For Leo. The real password is ‘Paperclip286’. I just wanted to make sure you found someone clever enough to read the instructions.”
Marta smiled. She didn’t remove the password. She simply added a new user: Leo. No password required.
Some locks aren’t meant to be broken. They’re meant to tell a story.
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
often requires physical access to the motherboard. While standard user or power-on passwords can sometimes be bypassed by removing the CMOS battery, a Supervisor Password typically requires a specific "Clear CMOS" jumper procedure or, in extreme cases, a motherboard replacement. Step 1: Differentiate Between Password Types
Before proceeding, identify which password you are trying to reset:
Power-On Password: Prompts immediately when you turn on the PC.
Supervisor Password: Required to change settings within the BIOS menu.
Hard Disk Password: Required to access data on the drive. Note: Clearing the CMOS will not reset a hard disk password. Step 2: The Physical Reset (Clear CMOS Jumper) The most effective way to clear a BIOS password on the M720q Tiny Go to product viewer dialog for this item. is using the onboard jumper. Conclusion Resetting the BIOS password on your Lenovo
Preparation: Turn off the computer and disconnect all cables, including the power adapter. Open the Chassis:
Remove the screw on the back of the case and slide the cover off.
Locate the Jumper: Find the JP35 jumper block on the motherboard. On the
, this is typically located in the top-left corner near the Wi-Fi antenna or rear ports. Move the Jumper:
The jumper is normally on pins 5-6 (or 1-2 depending on the label).
Move it to the Maintenance position (often covering pins 2-4 or 2-3). Trigger the Reset: Reconnect the power cable and turn the computer on.
The system may not display anything but should emit a series of beeps (usually double beeps).
Let it beep for 15–30 seconds, then hold the power button for 5 seconds to force it off.
Restore the Jumper: Disconnect the power again and move the jumper back to its original position.
Finalize: 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
If the jumper method does not work, you can try a full power drain: M720q User Guide and Hardware Maintenance Manual
Unlocking a Lenovo ThinkCentre M720q Tiny Go to product viewer dialog for this item.
when the BIOS password is forgotten involves a physical "Clear CMOS" process. Lenovo designs these systems so that simply removing the battery often isn't enough; you must use the motherboard's maintenance jumper to reset the security settings. Essential Preparation
Before starting, ensure you have a clean workspace and the following:
A flat-head or Phillips screwdriver (depending on your specific chassis screw).
Anti-static protection (touch a metal object before touching the internal components).
Warning: This process will reset all BIOS settings to factory defaults. Step-by-Step Reset Procedure 1. Power Down and Open the Chassis
Turn off the computer and disconnect all cables, especially the power cord.
Slide the computer cover toward the front or rear (after removing the single thumb screw at the back) to expose the motherboard. 2. Locate the "Clear CMOS" Jumper
On the M720q motherboard, look for a small plastic jumper block (often red or blue).
It is typically located in the upper-left corner near the Wi-Fi antenna or rear ports.
In the Lenovo Maintenance Manual, this is officially called the Clear CMOS / Recovery jumper. 3. Move the Jumper to Maintenance Position The jumper is normally on pins 1 and 2 (Standard position).
Carefully pull the jumper off and move it to pins 2 and 3 (Maintenance position). 4. Clear the Password Plug the power cord back in and turn the computer on.
The system will not boot into Windows. Instead, it may beep or display a message indicating it is in maintenance mode.
Leave it on for about 10–20 seconds, then turn it off by holding the power button for 5 seconds. Crucial Step: Unplug the power cord again. 5. Restore to Standard Position
Move the jumper back from pins 2 and 3 to the original pins 1 and 2. Replace the computer cover and reconnect all cables. 6. Verify the Reset
Turn on the computer and immediately tap F1 to enter the BIOS Setup Utility.
The password prompt should no longer appear. You can now set a new password or leave it blank. Troubleshooting & Limitations
Supervisor vs. Hard Drive Passwords: The jumper method resets the Power-On and Supervisor passwords. It will NOT reset a Hard Disk Password (HDP). If the hard drive itself is locked, Lenovo typically requires a drive replacement as they cannot recover that data.
If it fails: Some users report that removing the RAM during the beep phase helps force a deeper reset on certain "Tiny" models, though this is not the official Lenovo-documented step.
Official Support: If the jumper method fails, Lenovo's official policy for lost Supervisor passwords usually requires a system board replacement.
Please help. ThinkCentre M920Q thin client BIOS reset : r/Lenovo
For anyone that lands here because of Google: If the supervisor password is set, remove the power cable. Move the jumper on JP35 ( Reddit·r/Lenovo
Please help. ThinkCentre M920Q thin client BIOS reset : r/Lenovo
For anyone that lands here because of Google: If the supervisor password is set, remove the power cable. Move the jumper on JP35 ( Reddit·r/Lenovo
Erasing lost or forgotten passwords (clearing CMOS) - Lenovo
Warning: Resetting a BIOS password may void warranty or violate corporate policies. Only reset passwords on machines you own or have explicit permission to work on. Incorrect attempts can render the machine unusable. This article explains responsible methods for resetting or removing a BIOS password on a Lenovo ThinkCentre M720q, including non-destructive options and last-resort hardware procedures.