Laptop repair stop the problem of overheating

Shutdown problems and related overheating very common in laptops, especially in home use. Common symptoms include some or all of this list;
- Laptop extremely hot to the touch, especially around the area of ​​the fan
- Fan seems to be running constantly, and at high speed
- Laptop closes itself when you do not do anything
- Laptop close at play
- These problems heating or become worse off with the passage of time, instead of getting better.

In about 1 out of every 10 cases, there is an error with cooling devices. By this means either mechanical failure with a fan, no longer able to increase and decrease, or slowly rotating, or electrical fault painting that exhibits itself does not say fan spin fast enough to cool the laptop.

However the cause of 9 out of 10 cases of overheating by the blockage of the flow of air. In these cases, the fan spin as fast as it can, but if you cut the road on hot air from reaching the outside world, heat buildup occurs and laptop takes precautions to safety on his own, rather than allowing sustained damage occur.


 Will I, very quickly, and explain how a laptop cools itself. Being heat from the CPU, and sometimes graphics chip, away from the processors through strips of copper metal. At the far end of this copper radiator heat is fed into a series of metal fins along. This question provides a very large area for heat to be spread again. Fan the air and then went off from the outside world and blows through the hot grill, and back towards the outside. In doing so, the air picks up heat from the hot metal fins and takes away from the laptop.
Scenario in blocking the flow of air, and the most likely culprit is the accumulation of material in front of the metal grill room cooling. The fan will be placed in the cold air through the holes from the outside world, and sometimes there may be a small piece of hair, fluff or dust fall into the laptop. When this is detonated air through a metal grill, gets stuck airborne material on the front of the fins. If this keeps happening over time, will gradually more material and more building on the front of the grill, and creating obstacles.

It appears from the common examples of this accumulation of material in the picture to the left. All material is a combination of gray dust and hair, lint or fluff, pressure for questioning in front of the heatsink.

The effect of this is to prevent some of the air flow through the interrogation room cooling. With less physical space for air to get through, the air does not pick up heat from the complete set of fins. Even less is transferred from the heat to the air on a trip it up to the outside world. With less heat is removed, and the heat starts to build up inside the laptop. Temperature sensors and detection will react by making fan spin faster and faster. And hand spinning propeller faster is to force more air through the gaps available, and last hot metal fins to pick up more heat.

This can be compensated from the spinning fan run faster to some extent, but in the end will be reached to the maximum. If the grill is blocked enough room cooling, the fan will be spinning at maximum speed, and will no longer be to reduce, or even stabilse, the internal temperature of the laptop. And temperature sensors and to achieve this final as failsafe protection measure will power the laptop itself. The hope behind this is that if the CPU is no longer produce heat more and more, and existing internal heat will dissipate gradually of the agreement itself and the laptop and, hopefully, avoid serious damage.

 To fix this problem, you need to stripping down the laptop to allow access to the heatsink and fan (s). I'm not going to explain how to remove a laptop computer, and step by step, and there is evidence elsewhere for this, and some manufacturers, for example Dell, in order to provide service on the pages of evidence to support their website.

In most cases, the dismantling of a laptop, all you will need one or two small screwdrivers. Require some laptops Torx screwdriver heads to remove some internal screws, so you will need to achieve in this respect private laptop make and model.

The photos were taken for the job of the laptop from Dell Vostro 3700 overheating. It closes by itself after about 15 minutes of average use. The atmosphere was very warm to touch around the area of ​​the fan, and the problem of the high temperature has gradually worsened over time. Service Manuals Dell explained how to remove the General heatsink / fan.

In this laptop, and the fan came on board so I removed the screws holding the fan. I flew small screws for easy identification.

The first image in this post shows the accumulation of dust on the front of the radiator fins. In fact, it also goes to show that you do not need to wade huge dust causes high temperature and Close. In this case there were approximately 90% of the fins obstructed by a thin layer of material, but you can also see that there are still gaps in the few where the air a little bit and you will be able to pass through. Will each make and model of the laptop has it's own threshold for how disability could be there before they cause a problem. I have seen cases where there is a large segment of dust and solid fluff, several millimeters thick, which peeled away in one big piece.

 After brushing away more than the accumulation of dust, and gave me a radiator fins and the fan a good blast with compressed air. Blew away the last vestiges of dust, leaving a nice clean shiny radiator and fan grill.

The only thing left to reassemble the laptop using the same steps as in the past, but in the opposite direction.

Laptop is now working well and heated or no longer closes by itself. A side benefit of this fix is ​​that the laptop is now a lot quieter. Because the fan can now remove the excess heat in the laptop while running at a slower speed, it reduces the fan noise. The laptop is also now a lot cooler to the touch.