HP guide description: "Heat sink (includes replacement thermal material): For use only on computer models equipped with a graphics subsystem with UMA memory". OEM documentation only; not bench-tested.
Source notes
HP EliteBook 840 G2 Notebook PC / HP EliteBook 740 G2 Notebook PC / HP ZBook 14 G2 Mobile Workstation Maintenance and Service Guide, printed p40 (PDF p50): "For use only on computer models equipped with a graphics subsystem with UMA memory 803016-001".