Toshiba U500 PSU52C-00S003 Users Manual Canada; English - Page 177
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Troubleshooting USB Sleep and Charge function Problem I cannot use the "USB Sleep and Charge function". The battery depletes quickly even when I turned OFF the power of the computer. Procedure The setting of "USB Sleep and Charge function" may be [Disabled]. Change the setting to [Enabled] in the TOSHIBA USB Sleep and Charge utility.. 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. n Change a mode setting of [Enabled] by the BIOS Setup. n Turn OFF the computer while external devices are connected. n 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. When "USB Sleep and Charge function" is set to [Enabled] in the BIOS 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 BIOS Setup. Instead use and USB port that does not have the USB Sleep and Charge function-compatible icon ( ). User's Manual 9-15