For any fan noise issue, start by doing all of the instructions here including running all of the Dell Diagnostics = * How to Troubleshoot Fan Issues* Open, "Inspiron G, loud fan noise, Nvidia, 3D games"
Hey guys, So I bought my laptop 13 months ago. After a few months of use, the laptop began to make noises, like the fan working too hard (regardless of what I was doing on the computer). I'm using the computer for Adobe (mostly Photoshop) and Chrome.  Now my problem is this - when I'm trying to talk with the customer service in my country, they say that the sounds are normal (based on the videos I've sent them from my iPhone). They're completely ignoring that those noises were not the same before. After googling this I found that I am not the only one who has had those issues. I've also asked them that I want to speak to a manager, and they told me that someone would call me in 48 hours no one did. And I asked them for an email so I could write about this issue and they told me to google the email address, which is super weird to say to a customer, but I did and I didn't get any reply to my email. What can I do? This laptop cost me a lot of money... any tips? 
Inspiron G3 15 3500, fan noises