My noisy fan in my HP laptop was annoying and then I got the message that the fan was no longer cooling properly. I researched having a computer store do a replacement and found it would take a week or more and cost was over $100, maybe. I watched a YouTube video on replacing a fan in a laptop and decided I would try. It is not the easiest process but if you are careful, and I was, it is not that hard. After putting it all back together and starting the laptop up it has been running quiet and smooth since. There are many different fans so make sure you order the right one.