Lenovo ThinkPad 770 TP 770X User's Reference that shipped with the system - Page 149

Message 158 (supervisor password error) 159 (supervisor password error) 16x or 17x (undefined date or configuration error) Troubleshooting Charts Cause and Action A hard disk drive was installed with a different supervisor password, or it did not have a hard disk password. The hard disk drive with the error can be in any of the following: The main bay of your computer The UltraBay II The UltraBay II tray of the docking station attached to your computer. To solve the problem, do the following: 1. Make sure a hard disk drive without the error is installed in the main hard disk bay of your computer. If the hard disk drive is installed in the UltraBay II tray of the docking station, power off the computer and reinstall it into the main hard disk bay of your computer. Then power the computer on again. 2. Press Enter. 3. Type your supervisor password at the power-on password prompt. If the 158 error appears again, press Enter to proceed to the Easy-Setup "Password" submenu. 4. Select the Supervisor icon; then press Enter. The same password as the supervisor password is set for the hard disk password on the main hard disk bay. 5. Restart the computer. The hard disk password differs from the supervisor password. The hard disk drive with the error can be in any of the following: The main hard disk drive bay of your computer The UltraBay II The UltraBay II tray of the docking station attached to your computer To solve the problem, do the following: 1. Make sure the hard disk drive password and the supervisor password differ. If the hard disk drive is in the UltraBay II tray of the docking station, power off the computer and reinstall it into the main bay of your computer. Then power on the computer again. 2. Change the hard disk password to the supervisor password at the hard disk password prompt. Follow the instructions on the screen. Chapter 4. Solving Computer Problems 135