Notebook noise? how to reduce it noises and CPU temperature

Last time ago i bought a Hyundai Notebook, and it was very unique product in such brand cause i had a problem and searched around web and didn't find any issue for any Hyundai notebook, i thought that i am the only person that had such thing!, my problem was it's fan, with very annoying noise and it's high temperature, first i used speedfan and I8kfanGUI, actually this tools are useful for anyone that face such problem: CPU heat, CPU temperature, Fan speed;
Now i am using them for my new Notebook (Dell Vostro 1520), also CPU-Z 1.56 are very useful for informing about main devices of system.