Hi there bmckinney04,
Is this a secondary drive?
Anyway, the drive should appear as having its full capacity under BIOS.
My suggestion would be to attach it with different cables to another SATA port. Another thing you can do is to go to your MOBO's website and update all the drivers.
In case the issue persists, there's a chance that there is something wrong with the drive. You will need to attach it to another system in order to see if it would appear the same way over there. In case it does, then I believe you can contact the manufacturer and eventually RMA the drive.
Cheers,
D_Know_WD