HP Compaq NC2400 Getting Started page 22

Next steps
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WARNING: To avoid potential discomfort or burns, do not
block the air vents or use the computer on your lap for extended
periods. The computer is designed to run demanding programs
at full power. As a result of increased power consumption, it is
normal for the computer to feel warm or hot when used continuously.
The computer complies with the user-accessible surface temperature
limits defined by the International Standard for Safety of Information
Technology Equipment (IEC 60950).
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WARNING: To reduce potential safety issues, only the AC adapter
or battery provided with the computer, a replacement AC adapter or
battery provided by HP, or a compatible AC adapter or battery
purchased as an accessory from HP should be used with the computer.
For more safety and regulatory information, and for battery
disposal information, refer to Regulatory, Safety and
Environmental Notices located in the Help and Support Center.
To access the Help and Support Center, select Start > Help and
Support > User Guides.
2–6 Getting Started