|This is going all over the place.|
Please explain more clearly.
If it is a SATA drive then it has a slot for a SATA connector and no IDE connector (40 pin). Use it with a Sata cable. If the drive have an IDE connector then use that. If the motherboard does not have the IDE connector and you still want to use the drive, you need an add on card or an adapter. Any unused connectors should remain open and will be available if you ever need them for other drives. Most modern motherboards no longer have IDE ports, but for a few years, they did so those with legacy components could still use them, if you don't, don't worry about the port, its like your appendix if you don't mess with it and it does not get infected (the real one), its Ok to leave it alone.
You have to be a little bit crazy to keep you from going insane.