Compaq Evo D300 Troubleshooting Manual page 71

Password Security and Resetting CMOS
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B–4
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.
CAUTION: Pushing the CMOS button will reset CMOS values to factory
defaults and will erase any customized information including passwords,
asset numbers, and special settings. It is important to back up the
computer CMOS settings before resetting them in case they are needed
later. Back up is easily done through Computer Setup. See the
Computer Setup (F10) Utility Guide for information on backing up your
CMOS settings.
4. Locate, press, and hold the CMOS button in for 5 seconds.
CMOS button
Troubleshooting Guide