Question USB ports losing power

May 30, 2020
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So, I've upgraded my system.
Specs are:- GA-B450-Aorus-PRO Motherboard. Ryzen 5 3600X (2x16GB) PC4-21300 2666MHz DDR4 RAM GeForce GTX 1660 Ti OC 6G
I've taken my SSD (win7) out of my old system (which still works perfectly fine) put it into my new system & booted up. The lights come on showing they are getting power & all is fine until I get to the "windows starting" splash screen then mouse, keyboard & headset all lose power from usb ports & doesn't come back on. So it gets to the password login screen & I cannot enter anything as I have no working keyboard. I've tried using different port combo's, no ports then pluging keyboard in at login screen.... When I do plug back in I get a brief flash of power/light to the keyboard then the light goes dark.
I know I will need to install the mobo drivers & all. But, I can't do that till I get windows to load & I can't do that when the usb ports stop during boot up. You can see my quandary.
Any help would be greatly appreciated.
Chris.