whre u get 810 BIOS ?
i checked the DFI main website and no 810 BIOS there
only 727, 815 and 823 BIOS

just flashed to 823 BIOS and get C1 randomly when tried to post
after some clear cmos i can have my mobo POST, OC was looks like similar with old BIOS (727)
i'll flash with 815 then..