How about some FREE advice
,,,, KEEP IT CLEAN.You would not believe how many Computers and Laptops have hardware problems andfailures that are caused by dust and dirt which clogs up the cooling components.Run the hose on your vacuum cleaner over the cooling grills on the side and base of yourlaptop occasionally will do the trick. PC's are dust magnets if sat on floor remember to run the vacuum around the machineregularly ,,,, again get the hose on side and rear air intakes. If you notice lots of dust in the air intakes maybe its as bad inside the machine, I would not recommend opening up the box, contact your local repairer, take the box to them a £20.00 visit could save you a fortune