I think the notch is on the EPROM carrier that the chip body sit's in.
Installed:
http://www.dpcars.net/748/d069.jpg The bottom of the standard EPROM has a cut-out / notch by the numbers on this example, but most EPROMS are the same:
http://www.ducati.com/temp/images/1image409.gif Rob.
Last edited by desmobob : 12-Jun-2006 at 16:54.