Windows 10: USB device still running after laptop shut down

Brand new Dell XPS-13, Win10 CU

After I properly shutdown my laptop and unplug AC power why are the USB-powered fans still running in my laptop cooling pad?

Also, 100% charge, shutdown, not run for 48 hours, start up, why is the charge down to 90%?

:)

 

Laptop CPU Fan still running after Shut Down

Hi Srimadhwa B,

Thank you for your reply.

I installed all pending Windows 10 updates but there are 3 Unknown devices listed in the Other devices category in the Device Manager. When I try to update them a message showing with "Windows was unable to install your Unknown Device"

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Please provide a quick solution for this problem.

Note: I want you ask one question, what is the reason for CPU Fan running even after shutdown.
is because of Windows 10 or because of BIOS A08 update ?

 

Laptop CPU Fan still running after Shut Down

I also use the same laptop , had the same problem and fixed it by installing these drivers in this order as it is a driver conflict

NB difference in graphics card so choose yours. the first one for intel and the second for nvidia

downloadmirror.intel.com/.../win64_154004.2.exe

Nvidia: in.download.nvidia.com/.../353.62-notebook-win10-64bit-international-whql.exe

IME: downloads.dell.com/.../Chipset_Driver_5R99D_WN32_11.0.0.1153_A00.EXE

Chipset: downloads.dell.com/.../Chipset_Driver_P79WN_WN32_10.1.1.7_A00.EXE

Touchpad:http://downloads.dell.com/FOLDER03110129M/1/Input_Driver_CN4KX_WN32_19.0.9.4_A00.EXEKindly

reference Solved: Fan still works after shut down (Windows 10). - Dell Community

 

motherboards hold power for awhile, if you hold down the power button after the shutdown,to drain all power from the laptop ,do the usb cooling fans shut off

if the the cooling pad comes on when the laptop is turned on that would account for some of the 10% ,my laptops always used 3to5% on bootup ,the longer the boot took the more they used

 

There are "charging" USB ports (there is one of the three USB ports on my new Dell Inspiron 15) that still have USB power when the PC is powered off. That is most likely the issue with yours. My Desktop has option to have a charging port (BIOS option).

There are many different XPS-13 models (e.g. XPS 13-9365 for example). Post the exact model and I can look at the Dell documentation for your specific model.

 

A USB charging port is identified with a lightening symbol next to the USB one. Mine has a bios option to choose if you want it to be powered (or not) when you turn off the PC.

Identify USB 3.0 & Charging Ports By Looking At The Symbols Next To Them | AdictiveTips

 

to fireberd: XPS-13 9360
to Bree: I don't intend to charge anything with it. Tell me how to turn it off.

 

You may need to look for USB PowerShare in the documentation for your specific model. Dell's general Help is here...

Dell | Knowledge Base | USB PowerShare Feature

 

According to the Dell documentation the USB port on the Right side is the power share port.

 

Thanks y'all for your replies. Just knowing that by design my USB ports are always hot makes me feel a little better.