Any way to disable chip, ie. holding down reset for length of time, or pressing reset a number of times?

dont think magic2 can be disabled.i htink only messiah2 can do this.

Magic 2 can't be disabled, but a switch might help. Messiah2 and Magic 3 can be turned off.

Jaice - close, messiah 2 and magic 3.1 can be turned off. Magic 2 can't. A switch would do the trick, but it would be annoying. Also, you have the option of just replacing the magic 2 with a magic 3.1.