ADLINK aTCA-6250 - Manual (Page 81)

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6.7 Security Setup Screen
System BIOS provides two levels of password protection. They are Administrator
password and User password. The system can be configured that all users must
enter password every time the system boots or when setup utility is executed, using
either Administrator password or User password.
The Administrator and User passwords activate two different levels of password
security. If you select password support, you are prompted for 3 to 20 characters
password. Type the password on the keyboard. The password doesn’t appear on the
screen when typed. Make sure you write it down. If you forget it, you must drain
NVRAM and re-configure it.
Administrator Password
Use this option to set a password for administrator with full control of the BIOS setup
utility.
User Password
Use this option to set a password for user with limited access to the BIOS setup utility.