Windows 7 how to disable usb power in standby?

[unknown00]

so i usually have an external plugged in and i usually put my laptop (a hp dv5t) to sleep mode at night, but the external harddrive still stays on.

how do i disable usb power in standby mode? i already went into advance power options and couldn't find anything. also, in power settings, USB selective suspend is enabled

 

[ref]

go to device manager right click Usb hub you want to disable>select properties>select the tab with power management and check the box that says allow computer to switch of this device to save power!!

 

[unknown00]

in device manager i have 18 different usb devices...how do i know what is what?

Link Removed

 

[ref]

guess it's the 8 intel hubs but to know witch one is connected to your HD is a hassle google for a software that maps them for you!

 

[unknown00]

any software you can recommend? also, i only have 4 usb slots...

 

[unknown00]

bump ttt anyone?

 

[unknown00]

bump ttt anyone?