pin 80 sounds like u have a 80 pin ide cable connected to your cdrw to your motherboard. most cd rw use 40 pin cables, although i dont think it makes much diff.
first make sure the cable is in the right way. the red stripe should be pin 1.
second if that fails then try changing the ide cable between the motherboard and your cdrw as its possable u might have a faulty one.
one other way is to try and connect up another cd rom using your cable and see if the same happens.
hope this helps