IBM 2179, 6643 manual Additional service information, Passwords

Chapter 7. Additional service information

Security	.	.	69	CMOS Clear Procedure	.	72
Passwords . . . . . . . . . . . . . . 69				Flash (BIOS/VPD) update procedure . . . .	.	72
Power-on password	.	.	69	Power management	.	73
Removing a power-on password . .	.	. 69		Advanced Configuration and Power Interface
Administrator password	.	.	70	(ACPI) BIOS	.	73
Administrator password control . . .	.	. 70		Advanced Power Management	. 73
Operating system password	.	. 70		Automatic Hardware Power Management features		73
Vital product data	.	. 70		Setting Automatic Hardware Power Management
Alert on LAN	.	.	70	features. . . . . . . . . . . . . . . . 73
Hard disk drive jumper settings . . . .	.	.	70	Automatic Power-On features	.	74
IDE hard disk drive settings	.	.	71	Network settings	.	74
CD-ROM drive/DVD drive jumper settings	.	. 71		Flash over LAN (update POST/BIOS over network)		74
BIOS levels	.	.	71	Wake on LAN	.	75

Security

Security features in this section include the following:

vPower-on and Administrator Passwords

vAlert on LAN

Passwords

The following section provides information about computer hardware and software-related passwords.

vPower-on Password

vAdministrator Password

vOperating System Password

Power-on and Administrator passwords are set in the Setup Utility program. See “Setup Utility program” on page 5 for information about running the Setup Utility.

Power-on password

A power-on password denies access to the computer by an unauthorized user when the computer is powered on. When a power-on password is active, the password prompt appears on the screen each time the computer is powered on. The computer starts after the proper password is entered.

Removing a power-on password: To service a computer with an active and unknown power-on password, power-off the computer and use the following procedure:

1.Unplug the power cord.

2.Remove the rear bucket housing and rear EMC cover assembly.

3.Refer to “System board layout” on page 14 to find the CMOS jumper.

4.Change the CMOS jumper from pins 1,2 to pins 2,3.

5.Power-on the computer. The system senses the change in the switch setting and erases the password.

6.Power-off the computer.

7.Change the CMOS jumper back to pins 1,2.

8.Install the rear EMC cover assembly and rear bucket housing.

9.Remind the user to enter a new password when service is complete.

© Copyright IBM Corp. 2004 69