Toshiba M300D Benutzerhandbuch

User’s Manual

9-15

Troubleshooting

I cannot use the “USB 

Sleep and Charge 

function”.

The setting of “USB Sleep and Charge function” 

may be [Disabled]. Change the setting to 

[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 this 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.

■

Connect external devices after turning OFF of 

the computer.

If this function can not be still used, change the 

setting to [Disabled] in the BIOS Setup and stop 

using this function.

The battery depletes 

quickly even when I 

have turned OFF the 

power of the computer.

When “USB Sleep and Charge function” is set to 

[Enabled] in the HW Setup, USB bus power 

(DC5V) will be supplied to the external device 

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 to [Disabled] in the HW Setup.
Instead use a USB port that does not have the 

USB Sleep and Charge function-compatible icon 
( ).