We're nearing the end of my experience in this, but I figure I'll try to get more info out of you so someone with more knowledge can come through and help. Is this a brand new drive? You did not mention. Also, is the motherboard "BRAND-new"? By that, I mean, has it operated with an OS on it prior to this HDD issue?
1. Quick check: ensure SATA & power cables are securely connected to the drive.
2. Turn on the computer and see if the drive even spins (if it's not recognized, it may not)
3. Try a different SATA port (if available), different SATA cable, or try connecting to a desktop SATA (to rule out the laptop SATA port/mobo as the issue) (check the drive for spinning there too)
Sorry I'm not providing much in the way of answers...