Can you please confirm. Are you using the old disc or the new as your Primary drive. If the later, then I would assume that ALL the drivers are those approrpiate to the previous PC/montherboard, and any problems you have on this PC can almost certainly be laid at that door. Is suggest you wipe everything off your new HHD and reinstall Windows.
NB Just because both HHDs came from the the same MODEL does not mean that these will both have the same type mobo and attachments. Also, if you don't have access to the PC that the larger HHD was on when that version of Windows was installed, then you are breaching the licence agreement if you try to use it on your PC at the same tiome that it is running on the original PC.