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