Dear of Asrock

I have this motherboard H81M-DGS R2.0 with I7-4790k, and I have Logitech conference camera CC3000e and logitech webcam c920.

I have to unplug CC3000e from USB port because , the boot stop with ASROCK Screen, this happen many time , with logitech c920 (sometimes happen).

I have the last firmware 1.6 .

I think this an firmware error can you solve the problem?

With kinds regards
Joćo Pereira Rosa