sorry for not making any sense let me reword that. My mobo and processor are LGAA 1156 and im unsure which one is broken so i would rather just upgrade the broken one then both. Do you know if there is a mobo that can do LGAA 1155 and LGA 1156 Processors
It's probably the motherboard, since CPU's rarely ever fail (a seriously small amount).
But no, there aren't any boards that support both
1156 and 1155.
to get a new 1156 board for the i3 and a 1155 board for the i5.