It's usually simpler to add the II drive to the secondary (primary, if it's a modern machine with a SATA drive) ATA channel, which is normally connected by the CD/DVD drive only. Switch the cables from the optical drive to the II hard disk and you should be all set.
A straight booting from the old drive on the new machine usually leads to a deadlock at booting to Windows due to the radically changed hardware setup.
Last edited by DBTL; 20th April 2006 at 15:13.