Greetings!

Does the new player boot at all? Perhaps you should load 2.0b13 and see if you get a disk not found error. Also, is the drive recognized in the boot log? Lastly, you can try putting the disk builder on the new unit, see how it does with the partition pump and stress tests.

Again, if it is a loose connector, etc., you will need to open the unit to verify. Have you spoken to the seller about it? What did they say?