Power-On Password - IBM PS/2 65 SX Hardware Maintenance Reference

1.1.2 Power-On Password

A power-on password denies access to the system when the system is
powered-on. To service a system with an active and unknown power-on
password, use the following procedure:
1. Turn off the system unit and all attached options (such as the display
and printer).
2. Unplug all computer power cords from electrical outlets.
3. Remove the system-unit cover.
4. If necessary, temporarily remove any long adapters in expansion slots
1 to 4.
Note: Make a note of which expansion slot you are removing the
adapter from and where any cables are attached to the adapter.
You will need this information later, when you install the
adapters.
5. Locate the speaker connector 1 on the system board.
6. Unplug the speaker connector 1, turn it over (180°), and plug it back
in.
7. Reinstall any adapters that were removed.
8. Plug in all computer power cords.
9. Power-on the system.
This deactivates the password.
IBM PS/2 Model 65 SX HMR
Power-On Password
PICTURE 2
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