Toshiba P300 user manual USB Sleep and Charge function

Troubleshooting

USB Sleep and Charge function

Problem	Procedure
I cannot use the "USB	The setting of "USB Sleep and Charge function"
Sleep and Charge	may be [Disabled]. Change the setting to
function".	[Enabled] in the HW Setup.
	When there is a current overflow of the external
	device connected to the compatible port, USB
	bus power (DC5V) supply may be stopped for
	safety reasons. When the happens, disconnect
	an external device if some external devices are
	connected. After that, turn the power of the
	computer ON/OFF to restore the function. If this
	function can not be still used even if only one
	external device is connected, stop using the
	external device because its current is over the
	acceptable value of this computer.
	Some external devices may not be able to use
	the "USB Sleep and Charge function.". In this
	case, please try one or more of the following
	methods.
	■ Change a mode setting of [Enabled] by the
	HW Setup.
	■ Turn OFF the computer while external
	devices are connected.
	If this function can not be still used, change the
	setting to [Disabled] in the BIOS Setup and stop
	using the function.
The battery depletes	When "USB Sleep and Charge function" is set to
quickly even when I	[Enabled] in the HW Setup, USB bus power
have turned OFF the	(DC5V) will be supplied to the external device
power of the computer.	connected to the compatible port. If external
	device is connected to the compatible port 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.
	Connect the AC adaptor to the computer or
	change the "USB Sleep and Charge function"
	setting the [Disabled] in the HW Setup.
	Instead use a USB Port that does not have the
	USB Sleep and Charge function-compatible icon
	( ).

User’s Manual 9-13