From time to time the cooling system on the laptopmay malfunction, why the computer itself shuts down or "brakes" during operation. It is possible that replacing the thermal paste on the video card of the laptop or its processor can help in this situation. However, it can not be ruled out that the problem may be in another. This article gives instructions for replacing thermal grease on a Lenovo Z570 laptop. We use it as an example, but by analogy it is possible to replace thermal paste on other models.
First of all, disconnect the laptop from the network, remove itthe power cord and completely disconnect it. Next, unplug the battery and set it aside. Now you can disassemble. Take a small Phillips screwdriver and unscrew all the bolts on the bottom of the casing. There are a lot of them there, so do not think that it's easy. Have unscrewed? Now remove the cover.
You can now see all the insides of the laptop. We are interested in the upper right side, where the cooler is located. It is easy to identify - it is round, and from it leaves a copper tube. Note that this copper tube is fed from the cooler to the processor. And the thermal interface itself is attached to the processor with three screws. On the same decree, the order of the unwinding of these screws. Be sure to follow it. So, remove the screws from the thermal interface of the processor, cooler and get all this construction.
After that, you will immediately see on the radiatorsthermal grease. It will be applied in two places, and most likely it will be dry. Gently remove the old paste from the radiator. Now use a syringe to apply a new thermal grease to the processor and coprocessor. To apply it is necessary absolutely slightly and then accurately to smear the received layer on all area of the processor. Do not overdo it and do not apply too much paste. Remember, it should just fill the micro-voids between the two plates - the processor and the radiator. This is its purpose, and this requires a little bit. Otherwise, replacing the thermal paste on the Lenovo Z570 notebook will not give the expected effect, because a large layer will slow down the process of transferring heat from the processor to the radiator.
After applying the thermal paste, gently wipeedges of the surface of the processors. Do not allow this mixture to get on the body of the chip, which is not designed to be applied to it. The layer should lie flat and be homogeneous. Did they? At this point, the replacement of the thermal paste on the Lenovo Z570 laptop is almost complete. Now we just need to collect everything back.
Take the design with the cooler and attach itback to the laptop. Radiators should lie on the applied layers of thermal paste, you do not need to press them down - they will make screws for us. Now take those screws that you removed earlier, and tighten them in the same sequence that you shot. This is why the replacement of thermal grease on the Lenovo Z570 laptop is complete. Without screwing the housing cover, try turning on the laptop. Earned? Excellent! Turn it off and tighten the housing cover back.
Now you know how to disassemble the laptop Lenovo Z570 and replace it with thermal grease. Successes in this business!
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