How to solve the high temperature of notebook?

Teach you to improve heat dissipation efficiency (1)

Seeing that summer is coming, the heat is unbearable. In hot summer, take off heavy clothes and put on cool clothes to keep cool. Take a parasol and apply some sunscreen when shopping, so as not to get sunburned in the hot sun. People have a temper, so do electronic products. It is difficult to figure out how to get angry in the face of high temperature, just like there is a problem with the heat dissipation of a laptop. It's the computer that doesn't work well, but you're in a hurry.

Whether it is a thin notebook or a game notebook, we must face an important problem, that is, heat dissipation. Games with high heat-generating hardware configuration are not easy to ensure good heat dissipation, while notebook with thin and light design has obviously narrow heat dissipation space. If there is some dust at this time, the high temperature will engulf the whole computer. Too hot? Collapse? Low performance? The consequences of heat dissipation problems are not just these.

Why are there problems such as poor heat dissipation? This is related to the heat dissipation design and environment of the computer itself. The former need not be explained too much. The notebook has its own cooling system when it leaves the factory, which determines how the cooling performance will behave from the beginning. So how to explain the environment can actually be attributed to the problems left by users during use, such as dust.

Reject the high temperature! Teach you how to improve the heat dissipation efficiency of notebook.

Why does dust accumulate? The poor quality of living environment directly affects the life of electronic products, and the main harm is fine particles in the air. For example, PM2.5 in Beijing is unbearable, and laptops can't stand it. Because the computer will generate static electricity when it is working, and the air friction caused by the rotation of the fan will also generate static electricity. In theory, dust is not easy to accumulate together, but static electricity will blend them together and linger.

Therefore, after the notebook computer is used for a period of time, the cooling fan will have different degrees of dust accumulation. The original dust particles with distinct particles turned into cotton wool after electrostatic baptism, which blocked the cooling tuyere and caused the problem of poor heat dissipation. In addition, the thermal conductive silicone grease on the surface of the processor chip will dry after a period of use, which will make the thermal conductivity worse, and the wind speed of the fan will be greatly reduced because of its life, so it is necessary to clean the heat dissipation module of the notebook computer regularly. (If the notebook computer is still under warranty, users are advised to go to the official after-sales service of the brand to clean up the dust, because self-disassembly may make the machine lose its warranty. )

Pay attention to the after-sales service during the warranty period before cleaning.

Different laptops have different internal structural designs. Some machines will expose the cooling module, which supports simple disassembly. It will be easier to disassemble these machines to clean up the dust, because there is no risk of disassembling the whole machine. However, some products are "all-inclusive" design, and manufacturers don't want users to disassemble themselves and hide the core hardware modules inside, so it is impossible to disassemble them easily. Faced with such a machine, we can only disassemble it all.

The processor of this machine is surrounded by a shell, so the replacement of silicone grease requires the disassembly of the whole machine.

Disassembly steps are the same as other notebooks. First, remove the fixing screws of the bottom cover.

Different notebooks have different positions of the shell fixing screws.

In general, there will be fixing screws in the battery compartment.

Due to the high difficulty, it is not recommended for ordinary users to clean the ash themselves. It is recommended to go to the official after-sales cleaning. This article will disassemble a difficult machine. The model number is Lenovo y470,2011. Up to now, the warranty period has passed two years. Therefore, it is a popular product, which is used for demonstration and has universality. This machine supports users to simply disassemble the fan to clean dust, but the whole machine needs to be disassembled and replaced with thermal conductive silicone grease.

The four steps of disassembly are similar.

The general steps to disassemble the notebook are: remove the fixing screws, remove the keyboard, remove the C panel, and finally take out the whole motherboard; Of course, some products have different disassembly machines, such as directly removing the bottom cover or directly removing the entire C-face panel. Fortunately, the steps are basically the same, and the disassembly logic is the four steps mentioned above, as long as the ideas are changed according to different models.

Some products don't have a complete C-plane, so they need to be disassembled separately.

Removing the keyboard is usually the first step in disassembling the machine, because there are many fixing screws under the keyboard.

The cable between the keyboard and the motherboard is fragile, so it needs to be handled carefully when disassembling the machine.

Usually, when disassembling, you will encounter a fragile sticker with warranty, and you will lose the warranty if you uncover it.

After the C panel was removed, the removal work was completed by 50%.

In the process of disassembly, you may encounter a fragile sticker with warranty, which is why we do not recommend disassembling the machine under warranty, because tearing off this fragile sticker means that the warranty is invalid and needs careful consideration. Of course, the warranty stickers of some products are directly attached to the outermost fixing screws, so you need to be careful when using them.

Carefully remove the motherboard cooling module and pay attention to the placement angle.

Basically, it is easier to take out the motherboard after removing the C panel, just remove the fixing screws in some parts. Of course, not all machines are a whole motherboard. There may be motherboards with USB modules and other core hardware connected through flexible PCB, so it needs to be disassembled in different ways according to different models.

Pay attention when disassembling the screen cable, it may be broken if you are not careful.

Finally, you can see the whole picture of the removed motherboard, and the shape and workmanship of each model motherboard are different.

Remove the fixing screws on the cooling copper tubes of the processor and discrete graphics card.

Did you see the disgusting furry dust at this moment?

Several points should be paid attention to when removing the motherboard: First, try to put the motherboard on a soft platform after removal, or put an antistatic cloth under the motherboard to avoid hardware damage of chips, capacitors and other components; Second, before disassembling the machine, you need to remove static electricity from your body. It is necessary to remove static electricity when disassembling the motherboard. Generally, wearing an electrostatic bracelet can eliminate it. Third, even if there is a cushion under the motherboard, we should gently unscrew the fixing screws and refuse violence.

Clean up the dust, wipe it clean, and apply proper amount of silicone grease, not too much.

The next step is the key task of disassembly, cleaning the dust in the cooling fan and re-coating the chip with heat-conducting silicone grease. Before coating thermal conductive silicone grease, it is necessary to clean the original silicone grease or silica gel on the chip before coating. In addition, there are many kinds of silicone grease used for replacement, including semi-liquid silicone grease, massive silica gel and even metal sheet, which need to be replaced according to users' own needs.

Not all machines are equipped with discrete graphics cards, but it is necessary to clean up the original silicone grease.

Be careful not to scratch the chip when cleaning the silicone grease.

Cleaning the cooling fan is best to remove the fan, and the cooling copper tube is used for cleaning.

Wash and dry the copper tube, then reassemble it with the fan, and the fan is cleaned separately.

Silicone grease needs to be spread evenly, not too much.

Applying silicone grease like this is very "horizontal" and may be counterproductive. Not only does it not improve the heat dissipation efficiency of the chip, but it may even deposit a lot of heat on the silicon grease, thus affecting the heat dissipation. So don't apply too much silicone grease, just cover the surface of the chip in a proper amount. In addition, it should be noted that the copper tube must be dried after washing, and no moisture can be left, otherwise it will face the disaster of burning the machine.

Some matters needing attention when rolling back the installation machine.

Clean up the dust on the cooling fan and copper tube, and then smear the silicone grease on the heating chip. The last step is to "return it to Zhao". How to disassemble the machine is how to put it back. The installation step is a retrograde version of the disassembly step, so when disassembling the machine, you must remember the sequence and plan the position of the fixing screw, otherwise it will be a tragedy if it can be disassembled or not.

Return the motherboard to the original path, pay attention to the position of components such as capacitors, and be careful not to break them.

The fragile screen cable is still the top priority of installation.

Finally, summarize the precautions:

First, if the notebook computer is still under warranty, it is not recommended to disassemble it by itself, so as not to lose the warranty qualification. You can go to the official after-sales service of the brand to clean up the dust. This service is generally free during the warranty period.

Second, when you don't need to disassemble the machine by yourself, pay attention to wearing anti-static bracelets and other protective measures to avoid machine damage or even personal injury.

Third, after the motherboard is removed, try to put it on a soft platform, or put anti-static cloth under the motherboard to avoid hardware damage of chips, capacitors and other components.

Fourth, the demolition method should be gentle, and violent demolition is strictly prohibited. Don't apply too much silicone grease. The radiating copper tube can be washed, but please be careful that it must be dried before it can be put back.

Then, this tutorial on ash removal and cleaning is over here. When summer comes and the high temperature is coming, it is necessary to keep ourselves and the computers we use cool. It's too hot and angry to cause problems. High temperature makes you fidgety and inefficient, and it also makes your computer fidgety and often crashes, which makes you more fidgety. Improve work efficiency, and the ash cleaning operation depends on yourself.