USB keyboard not working in Bios

[xxdms2k11xx]

Hi I Just bought a USB Gaming Keyboard When I plug-in to my motherboard the usb gaming keyboard's lights are On but the Num-lock light's off. I've tried to press many times it won't turn On the light and it shows the POST it said "Usb keyboard not detected" I tried to change the PS/2 keyboard it works.anyone how to fix it?

here's my also I've been trying to:

1. reset the CMOS battery and jumper
2. changed new RAM
3. use USB (female) to PS/2 Adapter

 

[Phillip Corcoran]

I had same problem so now I simply use a native PS/2 keyboard all the time.

I'm not a gamer so a basic PS/2 KB is fine for me.

There's probably a fix but I don't know it, besides, how many times a week do you need to alter the BIOS settings anyway?
Just switch keyboards when you need to.