I've just finished building a system with ASUS Z97-K. Booted up the machine and on startup the screen says Press DEL or F2 to enter UEFI BIOS settings as it should but nothing happens if I press DEL or F2. I think the mobo isn't recognizing the keyboard. The num lock lights up at the beginning and then it goes off and nothing happens. I've tried with both USB and PS/2 keyboard but no luck. Let me assure you that the USB keyboard is okay. I tested it on my laptop through and it's working fine.
Another interesting thing is I can enter into the boot device selection menu using F8 and then enter into UEFI from there. So I guess it's the firmware that's faulty am I right? Would flashing it with a newer BIOS update fix it or I need to contact to the servicing centre from where I bought?
Kingston HyperX 32GB
Samsung 850 Pro 256 GB
Cooler Master V750 PSU
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Never mind. I fixed it by myself. I was correct, that pre-loaded firmware was faulty. Updating to a newer BIOS version did the trick.