User manual HP PAVILION DV6-3142EA

[. . . ] Notebook PC User Guide © Copyright 2010 Hewlett-Packard Development Company, L. P. ATI is a trademark of Advanced Micro Devices, Inc. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. SD Logo is a trademark of its proprietor. [. . . ] Similarly, when switching from battery power to AC power, the computer switches back to the High-performance mode. NOTE: In order to optimize computer performance, the system might not allow switching modes, or prompt you to switch modes. It might be necessary to close all programs before switching. HDMI only works in the High-performance mode. You cannot use HDMI in Power-saving When switching between AC and battery power, you are notified that the computer is about to switch graphics modes. If you prefer, choose to continue using the same graphics mode. While the computer switches modes, the screen goes blank for a few seconds. When the switch is complete, a notification appears in the notification area, and the screen image reappears. NOTE: When select computer models are in slate mode, the screen orientations are reset when switching between graphics modes. To determine which graphics mode you are using, right-click on the Windows desktop, and then click Configure Switchable Graphics or Configure ATI PowerXpressTM. Shutting down the computer CAUTION: NOTE: Unsaved information is lost when the computer shuts down. If the computer is in the Sleep or in Hibernation, exit Sleep or Hibernation before shutting down. The Shut down command closes all open programs, including the operating system, and then turns off the display and computer. Shut down the computer when: Replacing the battery or accessing components inside the computer. Connecting an external hardware device that does not connect to a USB port. Disconnecting from external power for an extended period. Although the computer can be shut down with the Power button, HP recommends using the Windows Shut down command. Save your work, and close all open programs. Click Shut down. Switching between graphics modes (select models only) 55 If the computer is unresponsive and you are unable to use the recommended shutdown procedures, try the following emergency procedures: 1. Press ctrl+alt+delete, and then press the Power button. Press and hold the Power button for at least five seconds. Disconnect the computer from external power, and remove the battery. 56 Chapter 6 Power management 7 Drives Handling drives Drives are fragile computer components that must be handled with care. Adhere to the following cautions before handling drives: CAUTION: To reduce the risk of damage to the computer, damage to a drive, or loss of information: Before moving a computer that is connected to an external hard drive, initiate Sleep and allow the screen to clear, or properly disconnect the external hard drive. Before handling a drive, discharge static electricity by touching the unpainted metal surface of the drive. Do not touch the connector pins on a removable drive or on the computer. [. . . ] Follow the on-screen instructions. Performing a recovery NOTE: You can recover only files that you have previously backed up. HP recommends using HP Recovery Manager to create a set of recovery discs (entire drive backup) as soon as you set up the computer. Recovery Manager software repairs or restores the system if you experience system failure or instability. Recovery Manager works from recovery discs or from a dedicated recovery partition (select models only) on the hard drive. [. . . ]