'''Yes I'll bet its the "new improved" drive'''.
Put the old one back and see what happens. If you still get the same error you may have blown a RAM chip when you went inside and did your swap http://www.hooping.org/wordpress/wp-content/uploads/2010/12/sad-mac.jpg
The machine bus may be too slow for the drive and so you're getting in/out errors. ''They EFI may not have language code for that so it's doing the best it can to complain/alert the user within the acceptable language it has available.''
''If this answer is acceptable '''please remember to return and mark it'''.''