A lot of car users will have a bold idea - The car all position on the fan. Viewed from the outside the more car fan can provide the good heat dissipation effect, but it's not. We use a fan installed in the different parts of the car, in the same record different baking machine environment fan position influence on the temperature of the CPU and graphics. After some experiments we found that the automotive different location of the fan on the graphics card and CPU heat dissipation effect is different, according to the wind, the wind also have different effects. Next, let's take a look at how car fan is the most practical. At the end of the day, we found that when fan work in convulsions way, cooling effect is better than ventilation. And in the car back 120 mm fan with a ventilation fan cooling effect is most obvious. Of course in the front of car device into the wind fans can also provide a subtle cooling assistance, but compared with 'convulsions are dwarfed. Automobile internal cooling effect with automotive product heat level and has much to do with the internal pressure.