exactly which dq6 board do you have?
check out the gigabyte website for a bios update for your mobo.
I had a similar problem on gigabyte GA-G33-DS3R also with the 1tb spinpoint which showed up as only 33MB. A bios update fixed it.
actually theres a part on the drive where it keeps info on how many cylinders etc it has and how big it is. That had to be reset aswell since it had been overwritten with the 33mb size.
before that however, a program hdparm (linux) could already see the correct size so i knew the bios update worked.
i dont think the drive is damaged. try a bios update