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01-23-2014 10:17 PM
Desktop, HP Envey running Windows 8.1
I just purchased an extra pair of USB cooling fans and want the computer to turn off the power to their USB port while in sleep mode.
I have already tried;
- Device Manager/Universal Serial Bus controllers/viewed all USB Root Port Hub/power Management tab/and the box are Checked to "allow the computer to turn off this device to save power."
01-30-2014 12:38 PM - last edited on 02-24-2017 03:55 PM by OscarFuentes
Thank you for your post, I will do my utmost to help you resolve this issue.
I grasp that you would like to control the power going to the usb ports. Here is a document on Managing Power Options (Windows 8), that should be helpful. Please let me know if you require further assistance.
01-31-2014 08:15 AM
Thank you for your reply.
Here is a link to a Microsoft document on Introduction to Power Management,USB ETW and Power Management and Implementing power management in USB client drivers.
I do no believe you can stop all power going to the usb through the software. The only way to remove all power to the usb, is to remove the connection from the motherboard. I hope these are useful