Any of the drives as in none of the optical drives either? If it doesn't detect anything (HDD/optical) you either have bad cables, cables not inserted into the motherboard properly, or a dead board.
This may sound stupid, but you have both the data/power connectors in each drive, correct? I assume you do, but I'm just making sure.
You could also try putting the drives in as slave devices in your current computer to see if your computer detects them or not.