The model is Dell Inspiron E1505
It's clean . I clean it from the outside though I read in some articles and you should opn your laptop and clean it
But I'm not comfortable opening my laptop
I'm thinking about cooling pads too and like you said the noise could be worse?
Yes I need to shut it down or put in hibernate after 30 mis or so if I want to stay noise free
After I turned on my laptop for a while the fans went wild! It's a pain