Owner manual
Table Of Contents
- Welcome
- Getting to know your computer
- Networking
- Keyboard and pointing devices
- Multimedia
- Power management
- Shutting down the computer
- Setting power options
- Using battery power
- Using external AC power
- Drives
- External cards and devices
- Memory modules
- Security
- Backup and Recovery
- Computer Setup (BIOS) and Advanced System Diagnostics
- MultiBoot
- Troubleshooting and support
- Troubleshooting
- The computer is unable to start up
- The computer screen is blank
- Software is functioning abnormally
- The computer is on but not responding
- The computer is unusually warm
- An external device is not working
- The wireless network connection is not working
- The optical disc tray does not open for removal of a CD or DVD
- The computer does not detect the optical drive
- A disc does not play
- A movie is not visible on an external display
- The process of burning a disc does not begin, or it stops before completion
- Contacting customer support
- Labels
- Troubleshooting
- Cleaning your computer
- Specifications
- Electrostatic discharge
- Index

Input power
The power information in this section may be helpful if you plan to travel internationally with the
computer.
The computer operates on DC power, which can be supplied by an AC or a DC power source. The
AC power source must be rated at 100–240 V, 50–60 Hz. Although the computer can be powered
from a standalone DC power source, it should be powered only with an AC adapter or a DC power
source supplied and approved by HP for use with this computer.
The computer can operate on DC power within the following specifications.
Input power Rating
Operating voltage and current 18.5 V dc @ 3.5 A - 65W
19 V dc @ 4.74 A - 90W
NOTE: This product is designed for IT power systems in Norway with phase-to-phase voltage not
exceeding 240 V rms.
NOTE: The computer operating voltage and current can be found on the system regulatory label.
92 Appendix C Specifications