hi i have a problem with my laptop there are parts wich heat up but have no vents so i cant do annything any body nows how can i  cool them
down thank you Look up the service guide and see how you can remove the fan. Dust often collects between the fan and grill in such a way that you can not see it without REMOVING the cooling assembly.Laptops, dispite their names, should not be used on one's lap directly.  This causes the device to be insulated by clothing or blankets and thus does not provide proper airflow.  It is best to rest a laptop on a HARD, flat surface, such as a table top our a lap desk.  Laptops will heat up and cool down more or less depending on their use, and under heavy use it is not uncommon for parts to heat up.  The case itself actually works as a heatsink, and allows for the distribution of heat as needed.  If a laptop is heating up too much, the fans will spin loudly, and then to save itself the laptop will actually SHUT itself off.

If the laptop is shutting down while being used properly, then definately look into dust or the fan being the culprit.  If it is just getting hot, try changing the surface it is being used on, or understand some things may be hot by DESIGN, but not CAUSE for alarm.