Acer Veriton 5200D Service Manual page 42

Parameter
Security Option
33
Description
The Setup option limits access only to BIOS setup.
To disable the security option, select Password
Setting from the main menu, don't type anything
and just press Enter.
The System option limits access to both the
System boot and BIOS setup. A prompt asking you
to enter your password appears on the screen
every time you boot the system.
Options
Setup
System
Chapter 2