i have a willem...i put the chip in and set the jumper wire to pin 3 and 31 then i go to ID it and it says "hardware not present"...but if i remove the jumper wire and move the chip all the way up near the lever on the zif and ID it then it recognizes the chip...i dont know if this is how its supposed to work but from what i read its not...also my willem doesnt have the yellow jumpers next to the zif its just got 2 black boxes...i also set in that im using a at29c256 chip and the dip switches r set correctly...im ------ stumped...ne help is appreciated

 

There are a couple of major Willem help threads on here...search around and you answer will be in them.