User Guide

● When a new device is plugged in, the USB hub driver notifies the Plug and Play (PnP) manager that a new device was
detected. The PnP manager queries the hub driver for all of the device's hardware IDs and then notifies the Windows OS
that a new device needs to be installed. In this scenario, the user will see a hardware installation window.
https://msdn.microsoft.com/en-us/windows/hardware/drivers/install/step-1--the-new-device-is-identified
https://msdn.microsoft.com/en-us/windows/hardware/drivers/install/identifiers-for-usb-devices
9. Why do the peripheral devices, which are connected to the dock station, become unresponsive after recovering
from a power loss?
● Our Dell Thunderbolt dock is designed to operate on AC power only and it does not support system power source back
(powered by system Type-C port). A power loss event will make all devices on the dock fail to work. Even when you
restore the AC power, the dock may still not function properly because the dock still needs to negotiate proper power
contract with the system's Type-C port and establish a system EC-to-dock-EC connection.
10. When BIOS is set to default, it does not respond to the F2 or F12 at POST from an external keyboard attached
to the dock. It boots to the operating system and the keyboard and mouse only work after the operating system
boots.
● To enable F2 and F12 options from the dock, you must enable boot support for thunderbolt devices and must set fast
boot to through or auto in the BIOS (scroll down in the BIOS section to see the note about this function).
Frequently asked questions 33