Operating system not found (XP)

I have an IBM Intellistation M Pro model 6868sb3
that I wanted to replace the hard drive with one
that I have in an HP Pavillion XT993 since it is larger. When I install the drive from the HP into
the Intellistation, I get the message Operating system cannot be found. If I hook the HP drive up
as a slave I can read the information on it, but I cannot get it to work as the master drive in the Intellistation. I have tried resetting the jumpers on the HP drive which is a Samsung SpinPoint V60 Series SV0602H. Any help or ideas
are much appreciated.