Author: Anders Eriksson (kryten.dhs.nu)
Date: 05-15-2002 19:51
Both 50 and 60 chips with EC markings are quite often full chips! We purchased 60 MHz EC which are full versions.
About the 66 MHz part I'm not sure though.
In any case I think the only way to tell is to try it! If you have a milan with 060 card around you could try, I was told the milan doesn't even boot with EC.