How to migrate existing windows from one hardware to another (dissimilar) hardware
1:Copy Sysprep folder to C:\ drive.
2:Copy new sysprep.exe from version 1.1 into sysprep folder.
3:Copy SCSI needed SCSI drives to C:\drivers\scsi
(this is location specified in sysprep.inf)
If necessary also copy the drivers to c:\sysprep\i386.
4:Run sysprep -BMSD
5:Go through Mini-setup and reboot again.
6:Repeat steps 1 and 2.
7:Run sysprep -quiet -reseal
8:Take image of server (eg. using ghost)
9:Drop image on new server and reboot.
Source:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=791347