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General CPU silicone grease, about 1-5 years on aging failure, it is estimated that many friends are the same as me, very lazy, too lazy to think of replacement, some time ago to their own 2008 old host replaced a CPU grease, really rejuvenated, but also due to laziness, there is no recording process, today, dismantle a same more than ten years ago unit of Lenovo old host, record the whole process of cleaning silicone grease, coating silicone grease, you can refer to the small partners in need.
Many friends will say that scraping off with a knife, wiping off alcohol swabs, and even toilet paper dipped in water can also remove the original silicone grease, you are right, these methods can be used, and they are not expensive, but what if the silicone grease accidentally enters the CPU pins or base sockets? I just used the precision instrument cleaner that I always had at home, and I was able to do a high-pressure SPA for the radiator.
Prepare tools and materials
● Precision instrument cleaning liquid (WD40 on the rich, and more than a dozen yuan on the cheap, but the volatilization is slightly slower)
● CPU silicone grease (buy expensive ones if you have money, I don't have money, so I buy less than 8 pieces a piece)
● Cotton swabs or soft cloth (I use a better quality paper towel)
● Disposable gloves (recommended, the ash of silicone grease is not easy to wash)
● Knife or plastic scraper (buy silicone grease and bring it with you)
Washing steps
Remove the silicone grease from the CPU
1. Power off: Make sure your computer is completely powered off and unplug the power cord.
2. Remove the cooler: Follow the instructions of your computer or motherboard to carefully remove the CPU cooler.
3. Scrape off the silicone grease: Remove the CPU and use a plastic scraper to gently scrape off most of the silicone grease on the surface of the CPU. Be careful not to scratch the CPU surface. (This item can also be ignored, just spray more points)
4. Use cleaning solution: Wear disposable gloves, spray the precision instrument cleaning solution on a cotton swab or soft cloth, and then gently wipe the surface of the CPU to remove the remaining silicone grease, that is, it volatilizes too quickly and is not easy to clean, and the advantage is that it saves cleaning liquid. I personally recommend this method with a pad of waste paper underneath
The CPU can be held standing with a gloved hand and sprayed directly with cleaning solution, which is particularly effective. Precision instrument cleaning fluids are generally more volatile and leave no residues.
5. Cleaning: After the silicone grease is dissolved by the cleaning solution, wipe the CPU surface with a clean cotton swab or soft cloth until the silicone grease is completely removed.
Remove the silicone grease from the CPU fan base
1. Remove the radiator: If the silicone grease is stuck to the radiator base, you will also need to remove the radiator first.
2. Scrape off the silicone grease: Use a plastic scraper to gently scrape the silicone grease off the base, taking care not to scratch the radiator base.
3. Use Cleaning Solution: Spray the precision instrument cleaning solution on a cotton swab or soft cloth, and then carefully wipe the base of the radiator until the silicone grease is completely removed. During the process, you can use cleaning liquid to clean the heat sink and fan directly, and the effect is also very good
It is very clean after washing
This cleaner dries quickly, to show you a demonstration, from the surface of the fan, it dries almost in about 5 seconds after spraying, faster than the volatilization of alcohol, roughly waiting for half a minute, even the gaps, it will be completely dry
Precautions
Throughout the process, be gentle to avoid damage to the CPU or cooler.
When using a precision instrument cleaning fluid, make sure it is suitable for use with electronic devices and is non-corrosive.
When cleaning, make sure that the cleaning solution is completely volatilized, otherwise it may affect the effect of the new silicone grease.
How to apply new silicone grease
Once the old grease has been removed, it's time to apply the new one. Here are the steps to apply silicone grease:
Apply silicone grease
1. Extrusion of silicone grease: If it is silicone grease packed in a toothpaste tube, squeeze an appropriate amount (generally the size of millet grains or small bean grains) onto the surface of the CPU, which can be divided and squeezed, similar to a nine-square grid.
2. Application: If the grease is viscous, you can use a plastic spatula, cotton swab, or fingers (wearing disposable gloves) to gently apply the grease evenly to the surface of the CPU. Be careful to apply evenly and without leaving air bubbles.
3. Install the cooler: After the silicone grease is applied, install the cooler back on the CPU in the correct direction, and make sure that the cooler is firmly fixed and flattened.
Precautions
The amount of silicone grease should not be too much, too much silicone grease may spill and affect the heat dissipation effect.
Silicone grease should be applied evenly and not concentrated in one point.
When installing the cooler, make sure that the cooler is in good contact with the CPU to avoid poor heat dissipation due to improper installation.
Summary of results
The situation before the replacement
CPU型号：Intel Core i5 4590
Cooling fan: A common cooling fan that comes with Lenovo commercial aircraft
Boot temperature: CPU quad-core temperature is close to 50°C
Oven test: Use the one-button oven function of the Diagram Bar toolbox
After 5 minutes of testing, the maximum temperature of the CPU quad-core reached 79°C, while the minimum temperature was also around 75°C
The situation after the replacement
Boot temperature: After replacing the silicone grease, the CPU boot temperature is reduced to less than 30°C
Stable temperature: After 10 minutes of powering on, the CPU temperature stabilizes in the early 30°C
Baking test: The maximum temperature of the CPU quad-core dropped to 65°C and the minimum temperature was 63°C
Although the cost of the silicone grease used is low, the effect after replacement is very significant. The temperature of the CPU has decreased by about 13°C on average compared to before the replacement. This change not only improves the cooling efficiency of the CPU, but also helps extend the life of the hardware and may improve overall system performance and stability.
Through this replacement of silicone grease, it can be seen that the importance of suitable silicone grease for CPU heat dissipation. Even the less expensive silicone grease can deliver significant performance gains when applied correctly. This is a very practical and cost-effective solution for users who want to improve the performance of their computer but don't want to invest too much.