Compaq 850 manual Setup Utility Functions

Technical Reference Guide

Table 7-3.Setup Utility Functions Continued

Heading	Option	Description
Security	Master Boot Record Security	Allows user to enable or disable Master Boot
(continued)		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.
	Device Security	Enables/disables serial, parallel, and USB ports
		and audio security.
	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
		Chassis serial number or Universal Unique
		Identifier (UUID) number - If current number is
		invalid (these ID numbers are normally set in the
		factory and are used to uniquely identify the
		system)
		Keyboard locale setting (e.g., English or
		German) for System ID entry.
		Continued

Compaq Deskpro EXS and Workstation 300 Personal Computers 7-9

Featuring the Intel Pentium 4 Processor

First Edition - December 2000