Compaq 850 manual System Management, Security Functions, Power-On Password, Setup Password

Technical Reference Guide

4.7SYSTEM MANAGEMENT

This section describes functions having to do with security, power management, temperature, and overall status. These functions are handled by hardware and firmware (BIOS) and generally configured through the Setup utility.

4.7.1 SECURITY FUNCTIONS

These systems include various features that provide different levels of security. Note that this subsection describes only the hardware functionality (including that supported by Setup) and does not describe security features that may be provided by the operating system and application software.

4.7.1.1Power-On Password

These systems include a power-on password, which may be enabled or disabled (cleared) through a jumper on the system board. The jumper controls a GPIO input to the 82801 ICH that is checked during POST. The password is stored in configuration memory (CMOS) and if enabled and then forgotten by the user will require that either the password be cleared (preferable solution and described below) or the entire CMOS be cleared (refer to section 4.6).

To clear the password, use the following procedure:

1.Turn off the system and disconnect the AC power cord from the outlet and/or system unit.

2.Remove the cover (hood). Insure that all system board LEDs are off (not illuminated).

3.Locate the password header/jumper (labeled E49 on these systems) and remove the jumper from pins 1 and 2 and place on (just) pin 2 (for safekeeping).

4.Replace the cover.

5.Re-connect the AC power cord to the AC outlet and/or system unit.

6.Turn on the system. The POST routine will clear and disable the password.

7.To re-enable the password feature, repeat steps 1-6, replacing the jumper on pins 1 and 2 of header E49.

4.7.1.2Setup Password

The Setup utility may be configured to be always changeable or changeable only by entering a password. The password is held on CMOS and, if forgotten, will require that CMOS be cleared (refer to section 4.6).

Compaq Deskpro EXS and Workstation 300 Personal Computers 4-31

Featuring the Intel Pentium 4 Processor

First Edition - December 2000