Usb 3.0 PCIE rip from Asus z170-A.

[Hecarus]

Hey all, Need help quick.
The motherboard I got is a Asus z170-a. And my case is a s340 elite. So the USB cable, i connected to the slot at the bottom. And I was looking at guide on youtube, couldn't figure out where the usb 2.0 suppose to go.
I then try to remove the blue (usb i believ) cable from the pcie slot. And the pcie slot came off. Do I need a new motherboard?

 

[DSzymborski]

Can't speak for others, but I'm not following the description at all and would need pictures or a clearer explanation to know what you're trying to describe here.