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Toshiba Portege M800 User Manual

Page 142

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User’s Manual

9-12

Troubleshooting

USB Sleep and Charge function

Problem

Procedure

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

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

( ).