Slide the top cover forward (toward the front power button) and lift it off the chassis to expose the motherboard. Step 2: Locate the Clear CMOS Jumper (CLR_CMOS)
For computers where the CMOS battery method fails—which is increasingly common on modern systems—the password reset jumper offers an alternative. Desktop motherboards typically include a dedicated jumper that, when moved to a specific position, clears all BIOS settings including passwords. lenovo thinkcentre m720q bios password reset
Advanced users sometimes desolder and re-flash the EEPROM chip using an external hardware programmer (like a CH341A), though this risks permanently bricking the machine. Hard Drive Password Prompt Slide the top cover forward (toward the front