I have an old 286 with 2 5 1/4" drives in it that are each connected to a screw in the case by a long black wire. I assume this is for some type of grounding. If I take 1 of these drives out and put it in my P133, do I have to figure out how to ground it to my P133's case, or can I just stick it in there and it will work fine? Thanks!