Yep, by saying pinned i do mean the jumper pins shunt...
Your right regarding sata pin assigns, now-a-days there isnt much purpose but back in the day the older 250GB drive may have had them....
Somtimes shunting the pins gives a dead drive a little power kick that restores it...unshunt the RPS and see what happens
Being that it isnt spinning up with power-on there is a few more things to do with it before binning it.
Check there isnt anything in the sata or powerslot messing with the contacts.
If it has a molex power connection check the 4 power posts in the drive are not loose, somtimes pushing them into the drive make the contacts contact.
Test it in another PC. (has revied one drive for me)
Leave it in bright hot sunlight for a day (has revived much electro equipment for me)
Sit some really strong magnets on it (has never done a thing for me but still hoping)
IMO unlikely to revive it but it may be worth the effort.
Short of all that, prepare to bin it or re-purpose it http://lifehacker.com/5619879/what-c...ead-hard-drive