HP Dm4-2070us manual Input power

Page 58

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

DC plug of external HP power supply

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.

50 Chapter 8 Specifications

Image 58

Contents Getting Started Product notice Safety warning notice Iv Safety warning notice Table of contents Contacting customer support Labels Vii Viii Welcome Finding informationFinding information Resources For information aboutFinding information Top Getting to know your computerTouchPad Component Description Power light White Power is on LightsGetting to know your computer Buttons Keys Fn keyFront Right side Regulatory, Safety and Environmental Notices Left sideGetting to know your computer Display YoucamRear Bottom Networking Connecting to a wireless network Using an Internet service provider ISPConnecting to an existing Wlan Setting up a new Wlan network Configuring a wireless router Keyboard and pointing devices Using the keyboard Using the action keysSetting pointing device preferences Using pointing devicesUsing the TouchPad Turning the TouchPad off and on Selecting Scrolling Rotating Maintenance Inserting or removing the batteryPage Replacing or upgrading the hard drive Removing the hard drivePage Installing a hard drive Page Adding or replacing memory modules Page Page Page Updating programs and drivers Cleaning the TouchPad and keyboard Cleaning the displayRoutine care Backup and recovery Restore Creating restore mediaPerforming a system restore Restoring using the restore media Backing up and recovering your information Changing the computer boot orderUsing Windows Backup and Restore Using Windows system restore points When to create restore pointsCustomer support Contacting customer support Labels ComponentSpecifications Input power Operating environment Index WlanHdmi USB