Hello,
I found solution for the overclocking.
My driver version is NVIDIA 381.22
Use these two commands reboot and OC is not a myth anymore

command1:
nvidia-xconfig -s -a --allow-empty-initial-configuration \
--cool-bits=12 --registry-dwords="PerfLevelSrc=0x2222" \
--no-sli --connected-monitor="DFP-0" -o /etc/X11/xorg.conf
command2:
sed -i '/Driver/a Option "Interactive" "False"' /etc/X11/xorg.conf
Glad you figured out some linux.
I just setup this mobo and booted v0015. For some reason this mobo uses very abnormal pcie addressing. This is also causing the xorg.conf to revert to a blank xorg and placing the actual xorg.cong into the backup.
I will make the v0015 image compatible with this addressing scheme and upload a new image that will support this mobo. Later tonight.