USB ports not working - H55M-UD2H

Hello all, I install Big Sur OS from another hac-mac to an SSD; and then I put this SSD into my H55M-UD2H and boot from the MB-SATA port. I use OC 0.6.5 in legacy boot mode. Successfully boot into OS but none of the USB ports working.

Appreciate your comments and advice.. million thanks!

H55M-UD2H | 32GB | R9-270X

Author: hllchan

Share: