Everything that have read on it that it is saying there is something wrong with the CPU. Yes the mother board is telling you about the CPU.
But it is not letting it boot. Just like you put in memory, yes the computer boots but it will not go by the bios screen because it doesn't like it.
I would take the CPU out look at the CPU and the pins in the CPU socket to make sure everything looks good.
Plus make sure you don't have any paste on the pins and the bottom of the CPU.