Compaq 177620-006 Manual De Usuario

Troubleshooting Guide

Password Security and Resetting CMOS

To disable the power-on or setup password features, or to clear the 
power-on or setup passwords, complete the following steps:

1. Shut down the operating system properly, then turn off the 

computer and any external devices, and disconnect the power 
cord from the power outlet.

2. Disconnect the keyboard, monitor, and any other external devices 

connected to the computer.

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WARNING: To reduce the risk of personal injury from electrical shock 
and/or hot surfaces, be sure to disconnect the power cord from the wall 
outlet, and allow the internal system components to cool before 
touching.

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CAUTION: When the computer is plugged in, the power supply always 
has voltage applied to the system board even when the unit is turned 
off. Failure to disconnect the power cord can result in damage to the 
system.

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CAUTION: Static electricity can damage the electronic components 
of the computer or optional equipment. Before beginning these 
procedures, ensure that you are discharged of static electricity by briefly 
touching a grounded metal object. See the 

Safety & Regulatory 

Information guide for more information.

3. Remove the computer cover or access panel.

4. Locate the header and jumper.

✎

On most system boards, the header is labeled E49 or P49.

✎

For assistance locating the password jumper and other system board 
components, see the Illustrated Parts Map (IPM) for your particular 
system.

5. Remove the jumper from pins 1 and 2. Place the jumper over 

pin 2 only, in order to avoid losing it.

177620-006.book  Page 2  Thursday, March 14, 2002  3:16 PM