no sorry, I can't have made myself clear. The X2.6 comes switch a switch unit which should be mounted on the outside of your XBOX. Normall on the front at the left hand side. You have post in the Xecuter 2.6 area - this is the chip you have got isn't it, other this information might be wrong.
It will have three switches on it:
one to enable/disable the chip
one to switch bios banks
one to enable or disable flash protect