Yes you can BCLK OC the 6100 on that motherboard if you download the proper BIOS.
Remember that using BCLK OC on a locked Skylake chip will have the following drawbacks:
1) No C-states will be supported. Full voltage and full frequency even at idle.
2) No temperature reading on cores using tools like HWMonitor, only package temps.
3) No iGPU (not a concern if you use a dedicated GPU)
4) No AVX (not a problem for gaming)
5) No turbo (not a problem if properly overclocked)