Before I get to the important things, should I remove the blue plastic tabs on either side of the drive, and do I put the screws back into the drive once the tabs are off?
It is not the SATA connection as you said sine the DATA cable does not attach to the drive. SO which PATA connection do I use?
The first (3.5"/5.25" IDE Drive) uses the power adapter, power converter, power cable with Molex power connector, and the adapter.
It does say Molex on the drive, and the instruction say to change the jumper setting on the drive to Master Single Drive Mode and that I can find info for changing drive mode on the label of the drive. There is something on the label under the heading "Jumpers". The drive appears to be on "enable cable select" instead of "master". How would I change the setting? There are eight pins, with tiny plastic squares around two pins with a sliver of metal from one square to the other.
The second (2.5" IDE Drive) just requires the adapter. The instructions say there are two sets of pins on the interface. One set with 44 pins, one missing, and another set with four pins, separated by a gap. My drive does not have the gap, but eight pins separating the other two sets of pins.
You mentioned the physical width of the drive. Just measure with a ruler or is the width found printed on the label?
With what I have mentioned here, can you decide which connection I should use? If you need any other info on the drive label just tell me.