Also as I stated in the shoutbox

"Mephisto Genius 68030 V4.01 33.333x4 Mhz (custom MESS overclocked version)"

this is the kind of crap that should be being cleaned up and removed from MESS, not added. There are overclocking features in the UI if you need something overclocked, and beyond that it's a simple source change. It has no role in documenting the hardware.