That's likely fine for powering the drive. I have seen a couple of 3.5" drives that require both 12v and 5v for power. Normally, all 3.5" drives just need 5v for power.
It looks like this drive's select lines are backwards from normal 3.5" drives, based on the information in the link provided above. Typically, DS0, DS2, and DS3 are OFF (no jumpers) and DS1 is on (jumper). It looks like this model may need DS0 jumpered and DS1 open.
I use a Sony MFP-920-1 drive without any issues. There are no exposed jumpers on this drive, so I suppose that they could be on the board similar to the picture shown. The drive is fully sealed in a metal case, so you can't see the board at all.
Did you try changing to the other drive position in the ribbon cable? The very end (with the twist) is drive 0, and the one between the end and the main connector is drive 1. Also, make sure you don't have the ribbon cable turned around backwards so that the end with a twist is at the SCP board!
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