I have a 2003 ge ps123ncna refrigerator and a newer 2008 model. Recently the newer model went out and the mother board was replaced, however, the real problem was the motor. So I have an extra circuit board that was removed but should be just fine. Asmy luck turns out the older model is not cooling. everything is running but just not cooling. It could very well be the mother board. I want to use that extra board but that board doesnt have j5 jumpers. Do I have the wrong board are these incompatable? I was told by a repair man that they should be compatible refrigerators (mother board wise)