I have a HP Pavilion 17-G015DX that just turned 3 years old. Like any toddler, my laptop gets temperamental. It sounded like a jet engine taking off every time I booted it or if I made it think extra hard, so I apparently got used to it. I decided to replace the CPU fan with this one. It installed in a snap. In fact, it took longer unscrewing and re-screwing the 2 dozen screws to open take apart the laptop and get to the motherboard. I turned my laptop on, and I heard nothing. Uh oh; did I forget to plug the cable into the motherboard? I decided to put my ear close to the vent, and I heard a faint humming sound. I also felt air circulation. I turned my laptop off -- the faint hum and air circulation stopped. Turned it back on -- faint hum and air. So far, so good. The fan occasionally gets louder when the laptop really needs to think, but it's more like a Tesla motor than a Boeing 747. Love it.