Technically, the I5-3570 (non-K) is not on the
CPU Support List, though I have no idea why. I would check your current BIOS version and if it's older than P1.90, I'd upgrade to that version and then retry the processor. If you have version P1.90 or later already installed, then I would suggest that the processor just is not compatible with that motherboard (for whatever reason) and look to a different motherboard.
-Wolf sends