HP description: "System board, Intel Core i7-4600U, non-TouchScreen models, Windows 8 Professional (Gold).". OEM documentation only; not bench-tested.
Source notes
HP Maintenance and Service Guide c04657844, PDF pages 41, 72, 121: "817918-601" (System board, Intel Core i7-4600U, non-TouchScreen models, Windows 8 Professional (Gold).). (via MG-51 new-models fold)