System BIOS

Intel® Server Board SE7520JR2

4.7.1Operating Model

The following table summarizes the operation of security features supported by the BIOS.

Some security features require the Intel Management Module (IMM) to be installed. These include “Diskette Write Protect”, “Video Blanking”, and “Power Switch inhibit.”

Table 43: Security Features Operating Model

Mode

Entry

Entry Criteria

Behavior

Exit Criteria

After Exit

 

Method/

 

 

 

 

 

Event

 

 

 

 

Secure boot

Power

User Password

Prompts for password if

User

Floppy writes are re-

 

On/Reset

and Secure Boot

booting from drive A.

Password

enabled. Front panel

 

 

Enabled

Enters secure mode just

Admin

switches are re-enabled.

 

 

 

before scanning option

Password

PS/2 Keyboard and PS/2

 

 

 

ROMs as indicated by

 

mouse inputs are

 

 

 

flashing LEDs on the

 

accepted. System

 

 

 

keyboard. Disables the

 

attempts to boot from drive

 

 

 

NMI switch on the front

 

A. If the user enters

 

 

 

panel if enabled in Setup.

 

correct password, and

 

 

 

 

 

drive A is bootable, the

 

 

 

Accepts no input from

 

system boots normally

 

 

 

PS/2 mouse or PS/2

 

 

 

 

 

keyboard; however, the

 

 

 

 

 

Mouse driver is allowed

 

 

 

 

 

to load before a

 

 

 

 

 

password is required. If

 

 

 

 

 

booting from drive A and

 

 

 

 

 

the user enters correct

 

 

 

 

 

password, the system

 

 

 

 

 

boots normally.

 

 

 

 

 

If the IMM module is

 

 

 

 

 

installed and the options

 

 

 

 

 

are enabled in Setup, the

 

 

 

 

 

system also blanks on-

 

 

 

 

 

board video, disables

 

 

 

 

 

floppy writes, and

 

 

 

 

 

disables the power and

 

 

 

 

 

reset switches on the

 

 

 

 

 

front panel.

 

 

Password

Power

User Password

System halts for user

User

Front Panel switches are

on boot

On/Reset

set and

Password before

Password

re-enabled. PS/2

 

 

password on

scanning option ROMs.

Admin

Keyboard and PS/2 mouse

 

 

boot enabled

The system is not in

Password

inputs are accepted. The

 

 

and Secure Boot

secure mode. No mouse

 

system boots normally.

 

 

Disabled in

or keyboard input is

 

Boot sequence is

 

 

setup

accepted except the

 

determined by setup

 

 

 

password.

 

options.

Fixed disk

Power

Set feature to

Will write protect the

Set feature

Hard drive will behave

boot sector

On/Reset

Write Protect in

master boot record of the

to Normal in

normally.

 

 

Setup

IDE hard drives only if the

Setup

 

 

 

 

system boots from a

 

 

 

 

 

floppy. The BIOS will

 

 

 

 

 

also write protect the boot

 

 

 

 

 

sector of the drive C: if it

 

 

 

 

 

is an IDE drive.

 

 

106

Revision 1.0

 

C78844-002