NT 4.0 only sees 8gb of 40gb hdd

I have a server that has a 40 Gb Ide Hdd now the server sees the drive fine. However when I install NT 4.0 server it only sees 8 GB of the drive. It did say that it was a drive that had more then 1240 clyinders however the main board disk does not have IDE dirvers.

Can some one help me. I have installed Service pack 6a but this did not help.