IBM 68666AU User Guide - Page 50

Enhanced security Your computer has an enhanced security feature that provides extra protection for your administrator password and your startup sequence settings. With enhanced security, your administrator password and startup sequence are stored in a highly protected, nonvolatile, security EEPROM module that is separate from CMOS memory and the EEPROM module that stores system programs. When your administrator password and security sequence are protected by enhanced security, they remain intact even if the battery in your computer expires or is removed. For more information, see "Using Enhanced Security" on page 42. Locking the keyboard You can disable the keyboard so that others are unable to use it. If a power-on password is set, the keyboard is locked when you turn on the computer. You must type the correct password before the keyboard will unlock. You can enable the power-on password feature with the Configuration/Setup Utility program. See Chapter 4, "Using the Configuration/Setup Utility program" on page 39. Some operating systems have a keyboard and mouse lock-up feature. Check the documentation that comes with your operating system for more information. Shutting down your computer When you are ready to turn off your computer, follow the shutdown procedure for your operating system to prevent the loss of unsaved data or damage to your software programs. See your operating system documentation for instructions. Important: In some circumstances, the computer might not turn off immediately when you press the power switch. In this case, hold the power switch down for 5 to 10 seconds until the computer turns off. Taking care of your computer Use these guidelines for the proper handling and care of your computer. 34 IntelliStation Z Pro User Guide