HP description: "System board Gold conversion kit, Intel Core i7-4500U, non-TouchScreen models, non-Windows 8.". OEM documentation only; not bench-tested.
Source notes
HP Maintenance and Service Guide c04657844, PDF pages 44, 73, 124: "817920-0C1" (System board Gold conversion kit, Intel Core i7-4500U, non-TouchScreen models, non-Windows 8.). (via MG-51 new-models fold)