alt Hacker NewsFrom my corrupted memory, but I think what you need to do is unplug, pull out the battery, open it up and remove the cmos battery. There should be instructions on the WEB for that. At work, people alawys returned their Thinkpads with that PW set, so I know there is a fix.
But if the password is a harddisk password, you are SOL :( You will need to get a new HD.
If I remember correctly that is not enough, because the supervisor password is stored on the EEPROM chip, so I supposedly have to short some pins.
I found this: http://asknotes.com/2018/09/04/removing-supervisor-password-...
I am not certain, however! We will see.