Primary disc drive not found

I was using window xp professional service pack 2 in my system from the last year.
I have upgraded it now to service pack 3. After Installation I have rebooted the system.
From now on it is not detecting the primary disc drive. Hard disc is okay I have checked it in the other system, and also another hard disc in my system it is working properly. But as I connect the first hard disc system show an error. Primary hard disc not found.
Any one can help me resolving this issue, Please guide
