Thanks for ALLservice big help. I now have a circuit to fix the Supervisor password on IBM Thinkpad. I also have to credit Raymond Kawakami
for his personal help, and his very clear instr ...
Most of the time, replacing 24rf08 password chip with a non-password works. However, it's very risky because if passphrase is on, then you WON'T be able to get the motherboard work.