Toshiba SATELLITE U400 - Manual (Page 70)

User’s Manual 4-9
Operating Basics
Fingerprint utility limitations
TOSHIBA does not guarantee that the fingerprint utility technology will be
completely secure or error-free. TOSHIBA does not guarantee that the
fingerprint utility will accurately screen out unauthorized users at all times.
TOSHIBA is not liable for any failure or damage that might arise out of the
use of the fingerprint software or utility.
USB Sleep and Charge function
Your computer can supply USB bus power (DC5V) to the USB port even
when the power of the computer is turned OFF. "Power OFF" includes
Sleep Mode, Hibernation Mode or shutdown state.
This function can only be used for ports that support the USB Sleep and
Charge function (hereinafter called "compatible ports").
Compatible ports are USB ports that have the ( ) symbol icon.
You can use the "USB Sleep and Charge function" to charge certain USB-
compatible external devices such as mobile phones or portable digital
music players.
However, the "USB Sleep and Charge function" may not work with certain
external devices even if they are compliant with the USB specification. In
those cases, turn the power of the computer ON to charge the device.
■ The "USB Sleep and Charge function" only works for compatible ports.
This function is disabled in the default setting. To enable it, you must
change [Disabled] to [Enabled] in the HW setup.
■ When "USB Sleep and Charge function" is set to [Enabled] in HW
Setup, USB bus power (DC5V) will be supplied to compatible ports
even when the power of the computer is turned OFF.
USB bus power (DC5V) is similarly supplied to the external devices
which are connected to the compatible ports. However, some external
devices cannot be charged solely by supplying USB bus power
(DC5V). As for the specifications of the external devices, please
contact the device manufacturer or check the specifications of the
external devices thoroughly before use.
■ Using the USB sleep and charge function to charge external devices
will take longer than charging the devices with their own chargers.
■ If external devices are connected to compatible ports when the AC
adaptor is not connected to the computer, the battery of the computer
will be depleted even when the power of the computer is turned OFF.
As such, we recommend that you connect the AC adaptor to the
computer when using the USB sleep and charge function.
■ External devices connected to the USB bus power (DC5V) function that
interfaces with the power ON/OFF of the computer may always be in
an operational state.
■ When there is a current overflow of the external devices connected to
the compatible ports, USB bus power (DC5V) supply may be stopped
for safety reasons.