Switching Between Graphics Modes (Select Models Only); Using External Ac Power - HP Compaq Presario,Presario CQ40-600 User Manual

Switching between graphics modes (select models only)

Select computers are equipped with switchable graphics and have two modes for processing graphics.
When you switch from AC power to battery power, the computer can switch from using the high-
performance mode to using the power-saving mode to conserve battery life. Similarly, when you switch
from battery power to AC power, the computer can switch back to the high-performance mode.
NOTE: In some instances, in order to optimize performance of the computer, the system does not
allow you to switch modes, or it may prompt you to switch. It may also be necessary to close all programs
before switching.
When you switch between AC and battery power, you are notified that the computer is about to switch
graphics modes. If you prefer, you can 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 orientation is reset when you
switch between graphics modes.
To determine which graphics mode you are using:
Right-click on a blank area of the computer desktop, and then click Configure Switchable
▲
Graphics or Configure ATI PowerXpress™.

Using external AC power

External AC power is supplied through an approved AC adapter.
WARNING!
a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
Connect the computer to external AC power under any of the following conditions:
WARNING!
●
When you are charging or calibrating a battery
●
When you are installing or modifying system software
●
When you are writing information to a CD or DVD
When you connect the computer to external AC power, the following events occur:
●
The battery begins to charge.
●
If the computer is turned on, the battery meter icon in the notification area changes appearance.
When you disconnect external AC power, the following events occur:
● The computer switches to battery power.
● The display brightness is automatically decreased to save battery life. To increase display
brightness, press the
To reduce potential safety issues, use only the AC adapter provided with the computer,
Do not charge the battery while you are onboard aircraft.
f3 action key or reconnect the AC adapter.
Switching between graphics modes (select models only) 61