Chapter 8 System BIOS

Table 8-3.Setup Utility Functions Continued

Heading

Option

Description

Security

Device Security

Enables/disables serial, parallel, and USB ports,

(continued)

 

system audio, and network controller.

 

 

 

 

Network Service Boot

Enables/disables the computer’s ability to boot from

 

 

an operating system installed on a network server.

 

 

(Feature available on NIC models only; the network

 

 

controller must reside on the PCI bus or be

 

 

embedded on the system board.)

 

System IDs

Allows user to set:

 

 

Asset tag (16-byte identifier) and Ownership Tag

 

 

(80-byte identifier displayed during POST) -

 

 

Refer to the Desktop Management guide for

 

 

more information

 

 

Keyboard locale setting (e.g., English or

 

 

German) for System ID entry.

 

DriveLock (Select models

Allows user to assign or modify a master or user

 

only. Appears only when at

password for select IDE hard drives. Whe enabled,

 

least one drive that supports

user is prompted to enter a password, which is

 

DriveLock is attached)

necessary for accessing the hard drive.

 

Master Boot Record Security

Allows user to enable or disable Master Boot

 

 

Record (MBR) Security. When enabled, the BIOS

 

 

rejects all requests to write to the MBR on the

 

 

current bootable disk. Each time the computer is

 

 

powered on or rebooted, the BIOS compares the

 

 

MBR of the current bootable disk to the previously-

 

 

saved MBR. If changes are detected, you are given

 

 

the option of saving the MBR on the current

 

 

bootable disk, restoring the previously-saved MBR,

 

 

or disabling MBR Security. You must know the

 

 

setup password, if one is set.

 

 

Note: Disable MBR Security before intentionally

 

 

changing the formatting or partitioning of the

 

 

current bootable disk. Several disk utilities (such as

 

 

FDISK and FORMAT) attempt to update the MBR.

 

 

If MBR Security is enabled and disk accesses are

 

 

being serviced by the BIOS, write requests to the

 

 

MBR are rejected, causing the utilities to report

 

 

errors. If MBR Security is enabled and disk

 

 

accesses are being serviced by the operating

 

 

system, any MBR change will be detected by the

 

 

BIOS during the next reboot, and an MBR Security

 

 

warning message will be displayed.

 

Save Master Boot Record

Saves a backup copy of the Master Boot Record of

 

 

the current bootable disk.

 

 

Note: Only appears if MBR Security is enabled.

 

Restore Master Boot Record

Restores the backup Master Boot Record to the

 

 

current bootable disk.

 

 

Note: Only appears if all of the following conditions

 

 

are true:

 

 

MBR Security is enabled

 

 

A backup copy of the MBR has been previously

 

 

saved

 

 

The current bootable disk is the same disk from

 

 

which the backup copy of the MBR was saved.

 

 

Continued

8-8Compaq D315 and hp d325 Personal Computers

Featuring the AMD Athlon XP Processor

Second Edition - April 2003

Page 142
Image 142
HP D315 manual Setup Utility Functions