HP Z840 Safety & Comfort Guide User Guide - Page 6

Damage requiring service 21 Servicing ...21 Mounting accessories ...22 Ventilation ...22 Water and moisture ...22 Grounded (earthed) products 22 Power sources ...22 Accessibility ...22 Voltage select switch ...22 Internal battery ...22 Power cords ...22 Protective attachment plug 23 Extension cord ...23 Overloading ...23 Cleaning ...23 Heat ...23 Circulation and cooling ...23 Replacement parts ...23 Safety check ...23 Options and upgrades ...23 Hot surfaces ...24 Object entry ...24 Precautions for portable computer products 24 Monitor support cover ...24 Rechargeable battery pack 24 Docking base ...24 Precautions for server and network products 24 Safety interlocks and enclosures 24 Accessories and options ...25 Products with casters ...25 Floor-standing products ...25 Rack-mountable products 25 Precautions for products with hot-pluggable power supplies 25 Precautions for products with external television antenna connectors 26 Compatibility ...26 External television antenna grounding 26 Lightning protection ...26 Power lines ...26 Antenna grounding ...26 Precautions for products with modems, telecommunications, or local area network options 27 Precautions for products with laser devices 27 vi