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Thinkpad T61 BIOS accessible but unchangeable.

Access Connections, BIOS, CPU, T41, T42, T43, T43p, T60, T60p, T61, T61p

Question

I can access the BIOS setup but can't seem to make changes. I have made changes like Power On  Password and enabling the security chip but now I can't select any options. It's almost like it is in Lock mode. 

Answer

It sounds like you may have set a supervisor password on your system.

 

Unless the password is entered, BIOS changes and updates may be precluded.  There is no supported way to reset the supervisor password as this is a security feature and if the password is lost / forgotten, the system board will need to be replaced.