The HP 840732-001 is a heatsink-and-fan assembly used in supported HP notebook computers. It combines the heat sink and fan as one service part for systems with integrated graphics (UMA), helping manage heat around the computer’s components.
HP lists this part for the 15-inch ProBook 650 G2, 650 G3, 655 G2 and 655 G3 notebook PCs. The service guide treats the fan and heat sink as an assembly that can be removed and installed during servicing. This makes the part relevant when replacing that cooling assembly in a listed configuration.