Usb Power Saving Settings

Right click on the usb root hub you want to change and then click on properties to open the usb port s properties dialog box.

Usb power saving settings.

In the power options dialog box expand usb settings and then expand usb selective suspend setting. Under the power tab you can see the power output for that usb port. Under the power management tab you will see the option for restricting power to the usb port to save battery power. Click on the power management tab and then choose the power settings you want using the check boxes next to each option.

If you want to enable windows vista to turn off the usb root hub when the computer is running on battery power click enabled in the on battery list. Click the power management tab. Repeat this process for each usb port hub you want to change. Under preferred plan click the change plan settings link for the plan you re currently using.

Repeat steps 3 and 4 for all of the usb root hubs on the computer. Set both the on battery and plugged in settings to disabled then click ok to apply changes. Click change advanced power settings. The operating system microsoft windows 7 allows the computer to shut off power to usb devices to save power.

Click change advanced power settings then scroll down to usb settings and click the little plus next to usb selective suspend setting to expand the options. Click on power options. Under the selected power plan click change plan settings. If you are using a laptop computer this feature may help if you do not want usb powered devices to draw off the computer s battery while the devices are not actively being used.

Click the start button and type edit power plan in the windows search box. For the notebook computer in our example there is only a balanced setting. If you change the settings on the power plan that isn t active this won t. Click on ok to save your changes.

If you want usb ports to keep supplying power in sleep mode just uncheck allow the computer to turn off this device to save power.