PORTÉGÉ M780

Enabling USB Sleep and Charge

This utility can be used to enable and disable the USB Sleep and Charge function in groups. USB Sleep and Charge compatible USB ports are assigned to each group.

Select the check boxes for each group to enable the USB Sleep and Charge function for the USB ports assigned to that group. In the default state all groups are disabled.

Power supply mode settings

Your PC has multiple charging modes so that many different USB devices can be supported for USB Sleep and Charge function. Typical Mode (Default) is suitable for a wide range of digital audio players.

However, determining which mode is suitable for your USB device is unknown without trying. Try each mode, using the following procedure, from Typical Mode to Alternate Mode(*1) to find the suitable mode for your USB device to charge.

This function may not be able to be used with some connected external devices even if the appropriate mode is selected. In this situation, clear the “USB Sleep and Charge” check box and stop using this function.

*1. Some computers may not support all modes.Battery Settings

This utility can be used to specify the lower limit of remaining battery life for USB Sleep and Charge. Move the slider bar to specify the lower limit. If the remaining battery life falls below the setting, the USB Sleep and Charge function will be stopped. Selecting the “AC Only” check box sets the utility to only charge when the AC adaptor is connected.

Heat dispersal

To protect against overheating, the processor is equipped an internal temperature sensor which activates a cooling fan or lowers the processing speed if the computer’s internal temperature rises to a certain level. You are able to select whether to control this temperature by either turning on the fan first, then if necessary lowering the processor speed, or by lowering the processor speed first, then if necessary turning on the fan - these functions are controlled within the Power Options.

When the processor’s temperature falls to a normal range, the fan will be turned off and the processor operation returned to its standard speed.

If the processor’s temperature reaches an unacceptably high level with either setting, the computer will automatically shuts down to prevent any damage - in this instance all unsaved data in memory will be lost.

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User’s Manual