I have a 286 and Comodore 64 that works. Man i should post that things wire management LOL. Anyways Like i was saying earlier you can make them line up. It dosent have to be all the way in there. But i guess i would have to be at everybodies house that dosent get it to show them what exactly to do. Just move the drive around until one of the holes line up and screw it in. You dont have to have 4 screws in it to workl.