System Management; Security Functions - HP Compaq d330 DT Technical Reference Manual

Chapter 4 System Support
4.7

SYSTEM MANAGEMENT

This section describes functions havin
o verall 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
d oes not describe security features that may be provided by the operating system and application
software.
4.7.1.1 Power-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 ICH5 that is
c hecked during POST. The password is stored in configuration memory (CM
and then forgotten by the user will require that either
a nd described below) or the entire CMOS be cleared
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) as described in the appropriate User Guide o
Service Guide. Insu
3. Locate the password clear jumper (header is labeled E49 on these syst
jumper from pins 1 and 2 and place on (just) pin 2 (for safekeeping).
4. Replace the cover.
5. Re-connect th
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.
4.7.1.2 Setup Password
T he 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).
4-24 hp compaq d330 and d530 Series of Personal Computers
Featuring the Intel Pentium 4 Processor
g to do with security, power management, temperature, and
re that all system board LEDs are off (not illuminated).
e AC power cord to the AC outlet and/or system unit.
First Edition – June 2003
OS) and if enabled
the password be cleared (preferable solution
(refer to section 4.6).
r Maintainance And
ems) and move the