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Heat Dissipation

What is Heat Dissipation?

During the operation of the SSD, the temperature changes due to self-heating and ambient temperature.

If the temperature exceeds the normal operating temperature of any of its critical components, the SSD  will not function properly or even be destroyed. Therefore, SSD must be managed for temperature to ensure reliable operation in harsh environments. To this end, Comay SSD uses a unique power control technology, temperature independent intervention technology, heat dissipation technology (also becomes cold conduction technology / thermal conduction technology) and temperature verification process. This section will focus on heat dissipation technology. For other technologies, please visit this site or contact us.

The heat-dissipation is a technology that reduces the heat of the SSD to the environment in a high-temperature environment, thereby reducing the temperature of the SSD.

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Why cooling technology?

1、The threat of high temperature toSSD is greater than low temperature.

For SSD, it is generally considered suitable for operating temperatures of 0 to 25 °C. Since it will emit a certain amount of heat when working, the self-heating heat will make the working environment temperature tend to be suitable when the temperature is lower than 0 °C.

On the other hand, if the SSD works in an environment exceeding 25 ° C, its own heat will cause the temperature to continue to rise, increase the internal resistance of the SSD, and the heat will further increase, thus forming a vicious cycle of non-convergence, which eventually leads the complete failure.

2、 Timely cooling is very important for the stable operation of SSD

The factors that affect the SSD's inability to work are mainly high temperatures. Generally speaking, because of its own heat and environmental confinement, the temperature of the SSD is significantly higher than the surrounding environment.

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How to efficiently dissipate heat is especially critical.

Common SSD with metal or plastic casings can cause poor air flow. In addition, the thermal conductivity of the plastic case is lower than that of air, and its own thermal conductivity is extremely poor. So the heat dissipation is very bad.

What are the unique cooling technologies used by Comay SSDs?

In nature, the thermal conductivity of metals is relatively high. For example, the thermal conductivity of copper is usually above 400, the thermal conductivity of aluminum is about 200, and the thermal conductivity of thermal pad/heat-dissipating silica is single digit, while the thermal conductivity of air is close. 1 or so, the thermal conductivity of plastic is 0.04~0.42.

The main heating devices of SSD are the main control chips (including SATA SSD and PCI-e SSD control chips), Flash chips, power chips and so on.

Without heat intervention, these heat-generating devices first dissipate heat to the surrounding air and PCB.

Different products of Comay SSDs use multiple different cooling technologies and designs, including but not limited to:

1. Thermal pad + housing heat dissipation path;

2. PCB copper + screw + shell heat dissipation path;

3. Heat sink;

4. Radiator; With these technologies, Comay SSDs have reached a big step in temperature, power consumption and temperature reliability.

PCB copper + screw + housing cooling path

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Cooling pad + housing cooling path

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heat sink

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Heat Dissipation FAQ

Is Heat Dissipation so important? For the enterprise and for it?

Heat Dissipation is very important. Whether industrial-grade or enterprise-grade.In fact, in a high-temperature environment, perhaps the SSD can work normally, the power consumption is increased, and the SSD cannot work stably and reliably. The performance of the SSD will continue to decline. Improving the ability of the SSD itself to control the temperature and strengthening the external environment temperature control is of great significance for the efficient, stable and reliable operation of the SSD.

It is also very important for enterprise-grade SSDs. Enterprise-grade SSDs have high demands on performance, especially random performance and latency. The return on investment of enterprise-grade SSDs is also closely related to the performance of SSDs. If SSD continue to operate at high temperatures and low speeds, they are a threat to data security and can significantly affect ROI and customer experience.

What is the effect of the Heat Dissipation technology used by Comay SSDs?

The direct result is that the SATA 2.5 inch SSD has a 3-5°C lower temperature during operation, and the operating temperature range, reliability, and performance at the same temperature have been greatly improved.

For PCI-e SSD, there are already heat sinks. Does the server still need a heat sink inside?

Of course need.

Because the Comay PCI-e SSD has high performance, although the unit power consumption is very low, the absolute power consumption can reach 35 watts. With the help of the SSD heat sink, the surface temperature will also reach 60 °C or above. For stable operation, the surface temperature of the SSD is usually not higher than 50 °C. Therefore, there is a requirement for heat dissipation inside the server. Usually the requirements for air-cooled units are not less than 100 LFM. For specific requirements, please refer to the product brief.

Why are other SSD brands not using cooling technology and devices?

There are several possibilities.

The first possibility is that the product is positioned for ordinary consumer use, the use environment is good, and the stability requirements for the SSD are not very high, so it is not used;

The second possibility may be due to cost considerations. The heat dissipation function is relatively high in the proportion of the cost of the SSD. Manufacturing costs can account for more than 13% of the total cost. Some products do not use these technologies and functions in order to save on research and development costs and manufacturing costs.

The third possibility is due to the limitations of research and development capabilities. The design, simulation and verification of the heat sink requires certain technical capabilities and equipment. Without such capabilities and equipment, it is difficult to complete such research and development.










Power Control

What is Power Control

During the operation of the SSD, the temperature changes due to self-heating and ambient temperature.

If the temperature exceeds the normal operating temperature of any of its critical components, the SSD  will not function properly or even be destroyed. Therefore, SSD must be managed for temperature to ensure reliable operation in harsh environments. To this end, Comay SSD uses a unique power control technology, temperature independent intervention technology, heat dissipation technology (also becomes cold conduction technology / thermal conduction technology) and temperature verification process. This section will focus on heat dissipation technology. For other technologies, please visit this site or contact us.

Power Control is a unique means and awkwardness to reduce the power consumption of SSDs.

Why Power Control?

1、The power consumption of SSDs is the source of heat and temperature, and the threat of high temperature to solid state drives is greater than low temperature.

For SSDs, it is generally considered that operating temperatures 0 to 25 °C is suitable. The threat of high temperature to SSDs is significantly higher than low temperatures. As the intrinsic factor of the surface temperature rise of the SSD, the control of power consumption plays a decisive role in the stability of the SSD.

2、High power consumption may lead to potential derivative damage

Higher power consumption, under the same conditions, will affect the stable and high-speed operation of the SSD. Similarly, sustained high power consumption will result in sustained high temperatures, which may lead to a number of derivative hazards, such as accelerating device aging and shortening the life of SSDs.

3、High power consumption leads to an increase in operating costs and a decline in customer experience

High power consumption can lead to a significant increase in operating costs for organizations such as data centers. The first is the high power consumption state, the SSD will increase the energy consumption.

Second, institutions must also increase the cost of refrigeration.

Thirdly, due to the high power consumption, the performance of the SSD is reduced, and the delay is increased, which may cause the owner to purchase and equip more SSDs;

Finally, due to the high power consumption, the life of the SSD is shortened, and the aging speed is accelerated, resulting in an increase in maintenance cost and a shortened operation time without intervals.

What are the unique power control technologies used by Comay SSDs?

Different products of Comay SSDs use multiple different power control technologies, including but not limited to:

1. High quality device;

2. Unique firmware;

With these technologies, the Comay SSD solid state drive has reached a big step in temperature, power consumption and temperature reliability.

Generally, the price difference between electronic components used in SSD can be 2 to 10 times. Unlike other low-cost manufacturers, Comay SSDs always use high-quality components, which not only improve the stability and reliability of SSDs, but also effectively reduce power consumption.

In addition, the firmware used by Comay SSDs is optimized according to different products and different applications. There are also unique features in power control.

High quality devices and unique firmware to reduce power consumption.

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Smart-Self-Control

Autonomous control technology

During the operation of the SSD, The temperature changes due to the changes in self-heating and ambient temperature.

If the temperature of the SSD exceeds the normal operating temperature of any of its critical components, the SSD will not function properly or even be destroyed.

Although SSDs may use multiple temperature-controlled technologies, it is still possible to approach or even break the extreme operating temperature of SSDs. In this case, how to ensure that the SSD not damaged, no data loss?

In order to achieve the above objectives, Comay SSD has introduced temperature independent intervention technology.

The temperature independent intervention technology is that in extreme high temperature environment, SSD independently intervenes in temperature.

Temperature self-intervention techniques reduce performance but avoid more serious losses such as data loss, and even permanent damage.

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Why do SSD require temperature independent intervention technology?

1、The operating temperature of the SSD is possible to approach or break the limit operating temperature

For SSDs, it is generally considered that the suitable operating temperatures is 0 to 25 °C. Because the heat generated by itself will cause the temperature to rise, the temperature rise will lead to an increase in the internal resistance of the SSD, and the heat will further increase, thereby forming a vicious circle that does not converge, which eventually leads to the complete failure of the SSD.

In practical applications, whether it is enterprise-grade applications or industrial-grade applications, in some cases, the ambient temperature and the surface temperature of the SSD may be close to or even exceed the maximum that the SSD can withstand. This poses a serious risk to data, SSDs and systems.

2、 In many cases, SSDs cannot be closely monitored and manually intervened, requiring "configuration and forgetting"

At this time, the SSD can automatically control the temperature to avoid more serious dangers, which is extremely important.

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What unique Heat Dissipation technologies do Comay SSDs use?

The principle of the autonomous temperature intervention technology used by Comay SSD is very simple.

Each SSD that requires temperature control is loaded with a temperature sensor and firmware with temperature control.

In the laboratory,after a large number of tests and optimizations, CoreRise's R&D personnel greatly expanded the actual operating temperature range of Comay SSD. On the other hand, it mastered the limit operating temperature of the SSD.

Inside the SSD, CoreRise's specially optimized firmware will always monitor the changes in the surface temperature of the SSD. Once the temperature reaches the temperature control threshold based on a large amount of time data, the firmware will automatically reduce power consumption to avoid surface temperatures exceeding the limit temperature.

The purpose of this is to ensure that the SSD can work reliably, maintain data security and system operation, avoid SSD damage, data loss and system downtime.

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Verification and Test

The operating environment temperature is one of the main reasons for the failure of the solid state drive. How to improve the resistance of SSDs to ambient temperature and reduce their own power consumption and temperature is the core work of R&D and production for high-reliability SSDs.

In terms of R&D, in order to make SSDs work stably under extreme temperatures, CoreRise's R&D team has done a lot of work, and has accumulated and improved hundreds of issues. That's why, with the same solution and raw materials, Comay SSDs are capable of handling some of the most demanding applications in the environment, such as the Renaissance High Speed Rail, and other brands have not passed customer testing.

Before the optimization, in the test of old Comay solid-state hard disk, less than 20% can pass the wide temperature test. With the efforts of R&D and innovation, from 2016, the Comay SSDs have achieved a pass rate of over 90% under the same test conditions, which improves reliability and reduces costs.


Secondly, in terms of production, in order to ensure the reliability of the end customer equipment, CoreRise will perform the  chamber cycle test 100% with large redundant before shipment.