Motherboard not picking up keyboard inputs in bios and stuck on bios screen

[Ollie_Hill_1001]

Hi I’m not sure what thread to put this under but I have an ASUS prime B250-M K. I shut down my computer last night then I turned it on today and I was put onto the bios screen asking me to press F2 or Delete so I did and it didn’t pick it up. I tried another keyboard and that one didn’t work either. I have tried booting without a GPU and Without any HDDs connected. I’m not sure what the problem is please can someone help.

My PC specs are
CPU- Intel pentium G4560
RAM- 8GB crucial 2133
GPU- GTX 660
MOBO- mentioned above

 

[ss202sl]

Are you using a PS/2 mouse?
Have you tried a different port?

 

[Ollie_Hill_1001]

I’m using a USB keyboard and a USB mouse and none of the ports work on the motherboard or even the case ports

 

[ss202sl]

do you have a PS/2 keyboard available, or an adapter?