My computer notebook very hot in summer

Have you cleaned your assembly fan lately? Dust must have accumulated there thus adding to the extreme heat of your laptop. Try cleaning it or have it cleaned by a technician, then use a cooling pad under it. There are cooling pads that have two fans and work better than those with a single fan. In addition you can also use a usb external fan to cool it off. Use your laptop in air conditioned rooms and don't use them for longer periods of time. Good luck.

Maybe you should buy an e-table for your netbook where you can put it while using it. It has a fan under for the netbook not to become so hot.

I have a really hot computer as well. I fix it by having a small fan blowing on the computer when I feel like the computer is starting to get hot, and to prevent the computer from heating as much, I try not to run as many processes on the computer.

Try do decrease the number of start up programs of your notebook since it affects the starting temperature of your notebook. Moreover, try to run lesser applications at the same time or use applications that uses lesser memory to run so that your processor doesn't heat that fast.

It sounds to me like your computer's heat sinks are not pulling heat from the processor and graphics card like they should be. The first thing you should do is make sure that the computer's fan is not full of dirt or hair. If the fan is clear, you might need to add more heat sink compound between the graphics card, processor, and the heat sinks, or the heat sinks may need to be replaced. I would have a professional do that repair for you, because you will have to disassemble the entire notebook to add more heat sink compound or replace the heat sinks. Don't wait too long to see if that's what needs to be done. If you let the system run too hot, even with a cooling mat under it, you could end up damaging the motherboard.

Perhaps you want to attach a small fan to your table so it can blow your laptop? Another way to reduce start up heat I guess you could try to limit the amount of application that open when you start your computer.

Buy a docking station with fan.. Or use it in an air conditioned room. Don't over use it.