HP EliteBook 2740p Tablet-PC - Manual (Page 66)

In the Windows fn+esc display, the version of the system BIOS (basic input-output system) is
displayed as the BIOS date. On some computer models, the BIOS date is displayed in decimal
format. The BIOS date is sometimes called the system ROM version number.
Initiating Sleep
CAUTION: To reduce the risk of information loss, save your work before initiating Sleep.
Press fn+f3 to initiate Sleep.
When Sleep is initiated, your information is stored in system memory, the screen is cleared, and
power is conserved. While the computer is in the Sleep state, the power lights blink.
The computer must be on before you can initiate Sleep.
NOTE: If a critical battery level occurs while the computer is in the Sleep state, the computer
initiates Hibernation and the information stored in memory is saved to the hard drive. The factory
setting for critical battery action is Hibernate, but this setting can be changed using Power Options in
Windows Control Panel.
To exit Sleep, briefly slide the power switch to the right.
The function of the fn+f3 hotkey can be changed. For example, you can set the fn+f3 hotkey to initiate
Hibernation instead of Sleep.
NOTE: In all Windows operating system windows, references to the sleep button apply to the fn+f3
hotkey.
Switching the screen image
Press fn+f4 to switch the screen image among display devices connected to the system. For
example, if a monitor is connected to the computer, pressing fn+f4 alternates the screen image from
computer display to monitor display to simultaneous display on both the computer and the monitor.
Most external monitors receive video information from the computer using the external VGA video
standard. The
fn+f4 hotkey can also alternate images among other devices receiving video
information from the computer.
The following video transmission types, with examples of devices that use them, are supported by the
fn+f4 hotkey:
● LCD (computer display)
● External VGA (most external monitors)
● HDMI (televisions, camcorders, DVD players, VCRs, and video capture cards with HDMI ports)
● Composite video (televisions, camcorders, DVD players, VCRs, and video capture cards with
composite-video-in jacks)
NOTE: Composite video devices can be connected to the system only by using an optional
docking device.
Enabling/disabling the TouchPad (fn+f5)
Press fn+f5 to enable or disable the TouchPad.
54 Chapter 4 Pointing devices, touch screen, and keyboard