Toshiba SATELLITE P500 - Manual (Page 87)

User’s Manual 4-10
Operating Basics
USB Sleep and Charge function
Your computer can supply USB bus power (DCSV) 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.
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 ON the power of the computer to charge the device.
■ The "USB Sleep and Charge function" only works for compatible ports.
This function is disabled in the default setting.
■ When "USB Sleep and Charge function" is set to [Enabled], 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 USB Sleep and Charge function is enabled, the computer’s battery
will discharge during hibernation or when the computer is turned off. It
is recommended that you connect the AC adaptor to the computer
when enabling 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.
Metal paper clips or hair pins/clips will generate heat if they come into
contact with USB ports. Do not allow USB ports to come into contact with
metal products, such as when carrying the computer in your bag.