Our school has some Compaqs donated by a law center. They took out the hard drives and we cannot get the computers to recognize new hard drives 40GB, 166. Tried to find specs on the compaq site, all I can find is 2.0GB hard drives listed for these DeskPro 2000 computers. Do you know if they can handle any larger hard drives? Are they worth adding a hard drive or should they be scrapped?