What is silicone on a CPU used for?

Silicone is thermally conductive silica gel that plays the role of conducting heat.

Without silicone, your CPU will have unstable heat dissipation, resulting in unstable heat dissipation.

It is recommended to buy thermally conductive silicone, a small tube for a few dollars When applying, it must be applied evenly, but not too thick.

If you really can't buy silicone, you can use food oil instead, drop a small drop, spread evenly, and be careful not to too much. Hope.

Coated between the CPU and the heat sink, it acts as a thermal conductive.

Silicone grease is divided into two types: thermal grease and lubricating grease. It is generally applied between the CPU and the heat sink. Let the temperature of the CPU quickly transfer to the heatsink and then cool it down by the fan.

Thermal grease: commonly known as heat dissipation paste, it is a paste made of special silicone oil as the base oil, new metal oxide as filler, with a variety of functional additives, and processed by a specific process. Colors have different appearances depending on the material.

It has good thermal conductivity, temperature resistance and insulation properties, and is an ideal dielectric material for heat-resistant devices, and its performance is stable, and it will not produce corrosive gas in use and will not affect the metal it comes into contact with. High-purity fillers and silicones guarantee smooth, homogeneous and high-temperature insulation. Coated on the assembly surface of power devices and heat sinks, it helps eliminate the air gap on the contact surface, increases heat flow, reduces thermal resistance, reduces the operating temperature of power devices, improves reliability and prolongs service life.

Thermally conductive silicone can not be used, use thermal grease.

Silicone and silicone grease are both materials that help the system dissipate heat, the difference is that silicone is a glue with good thermal conductivity and insulation, and will not lose its stickiness at higher temperatures, mainly used to paste heat sinks or fans on the surface of the device; Silicone grease, on the other hand, is not viscous, it is an emulsion or paste, and its role is to fill the gap between the chip and the heat sink and improve the heat transfer efficiency.

Observation method: Remove the CPU fan heat sink and observe whether the silica gel between the heat sink and the CPU contact surface has hardened, agglomerated or partially peeled off. Experience method: whether the computer starts to crash frequently during operation, and whether the temperature of the CPU rises significantly.

If so, prove that your CPU silicone is dry, and you must apply new silicone. Silicone that has been used for three years can also be replaced, silicone is very cheap, one yuan and one small tube, but when applying, you must pay attention to the uniform application, not too thick, and at the same time ensure that the heat sink and the CPU are in close contact and firm.

CPU grease accelerates heat conduction, increases the contact area, and fills the void between the CPU and the heatsink.

Is it OK for a CPU to not apply silicone grease?

Because there are ravines between the CPU surface and the radiator base, if the silicone grease is not filled, the gap between the heat dissipation base and the CPU is large, and the contact area is small, so the CPU cannot quickly dissipate the high temperature, and the CPU temperature rises, which will cause the computer to blue screen, automatic restart, crash, CPU frequency reduction and other reasons. CPU silicone grease has good thermal conductivity, temperature resistance, and insulation ability, which is an ideal dielectric material for heat-resistant devices, and will not cause corrosion in use and will not affect the metal in contact.

Can CPU silicone grease be replaced with toothpaste?

The selection of CPU heat dissipation materials mainly depends on the thermal conductivity, temperature resistance, electrical insulation, metal-free corrosion, non-curing, low volatile melting and other aspects of the selected materials. CPU thermal grease uses silicone as the main raw material, adding materials with excellent heat resistance and thermal conductivity, good silicone grease contains a large amount of metal, some high-quality silicone grease contains silver, lead, tin and even some also contain gold to provide better thermal conductivity.

We know that the main ingredient of toothpaste is friction agent, such as calcium carbonate (to remove dirt), dicalcium phosphate (to increase brightness), aluminum hydroxide (to remove smoke marks), etc., but also contains surfactants, adhesives, wetting agents, spices, sweeteners, etc., some toothpastes add fluoride that can combine with hydroapatite on the surface of teeth to form a harder fluoroapatite, which can prevent tooth decay. Among them, fluorine is corrosive, and it is not impossible to corrode the CPU surface and the CPU radiator base if used for a long time, in addition, toothpaste is conductive, improper application or long-term use may cause a short circuit, so CPU silicone grease is not recommended to use toothpaste instead.

At present, there is no better material for silicone gel for CPU to replace silicone grease as a thermally conductive material.

CPU silicone is a kind of heat dissipation conductor specially designed for computer CPUs. CPU silicone is a thermally conductive material with low thermal resistance, high thermal conductivity and high flexibility. The high flexibility of the material reduces the pressure required between the components.

At the same time, it covers the microscopic uneven surface so that the components can fully contact and improve the heat conduction efficiency, which is especially suitable for the heat conduction needs of limited space. It is resistant to high and low temperatures, water and weather aging, and has excellent electrical insulation and excellent thermal conductivity. It is a good insulating material.