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Service Hints & Tips

Document ID: PMYS-3KXTUQ

Aptiva - 2140/2142 Power-on password and CMOS reset

Applicable to: China, Hong Kong, Japan, Australia, Canada, Denmark, Finland, France, Germany, Italy, Netherlands, Norway, Spain, Sweden, United Kingdom, United States

A power-on password denies access to the system by an unauthorized user when the system is powered on. When a power-on password is active, the password prompt appears on the screen each time the system is powered on. The system unit starts after the proper password is entered. In some cases, you might be required to service a system with an active and unknown power-on password. To clear a password from the system, first identify the system CMOS jumper by referring to System Board Layout Type A-1 and System Board Layout Type A-2, then follow these steps.

1. Power-off the system unit.

2. Unplug the power cable from the electrical outlet. Attention: Do not attempt these steps with the power cord plugged into the electrical outlet. The power supply maintains +5 V dc of auxiliary
power when the power switch is powered off. System damage might result if the power cord is not unplugged during testing.

3. Locate the power on password jumper on the system board.

System Board Type	Jumper
System Board Type A-1	Password Jumper JP6
System Board Type A-2	Password Jumper JP3

4. Move the jumper from pins 1-2 to pins 2-3 to erase the password. See System Board Layout Type A-1 on page 5-2 and System Board Layout Type A-2 on page 5-5.

5. The system detects the change and the password, time, and date are erased from memory. Power Management settings are also deleted.

6. Move the jumper from pins 2-3 to pins 1-2 for normal operation.

7. Plug the power cable into the electrical outlet and power-on the system unit.

8. Run the Setup Utility to restore the configuration settings. Press Esc to save with the password disabled.

9. When you are finished servicing the machine, run the Setup Utility to restore the configuration settings. (You must reset the time, date, and any Power Management settings).

Notes:
1. To reinstall the password, the user must enter a password in the Setup Utility.

2. Disabling the power on password reconfigures the system. Run the Setup Utility to clear any 16X errors.

3. To determine if the machine you are servicing has the Power Management feature enabled, run the Setup Utility and check to see if Power Management is enabled (Suspend Timer not off and APM Connection Enabled).

	Search Keywords
	Hint Category	Hardware Installation/Configuration, BIOS, Security
	Date Created	15-08-97
	Last Updated	25-02-99
	Revision Date	25-02-2000
	Brand	IBM Aptiva
	Product Family	Aptiva
	Machine Type	2140, 2142
	Model	All
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes