machala A motherboard will not have any impact on video display performance. A BIOS has nothing to do with your display, all a BIOS does is run low level hardware checks and then passes control of the PC over to the OS. This would be like asking someone with car engine trouble what kind of chassis they had. It is not related.
If the motherboard has integrated graphics, the graphics chip would be what you would want to look into, but regardless, based on all the data I have seen our screen issues are almost 100% guaranteed to be a software issue, not hardware