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Qing Ben Jia, how high temperature? ——On the method of cooling NVMe M.2 SSD

source:    date:2018-09-12

I believe that many people who use computers and notebooks have the biggest problem: the contradiction between "increasing downloading demand" and "total insufficient storage space." With the sharp drop in the price of storage products, the recent 1T NVME M.2 SSD has dropped below 1,000 yuan, which is the same price as the 2.5-inch SATA SSD of the same capacity. It is conceivable that the large-capacity M. 2 SSD, will be greatly popularized.



However, just as the rose is beautiful and has a stinging hand, the NVMe is fast, but the volume is small, but there is a problem, but it always exists, that is, high temperature. When the M.2 SSD like NVMe was first introduced, the temperature soared to 70° - that is still the normal operating temperature range. The NVMe at this temperature, if it is inserted into the ultrabook that originally had a very high heat dissipation requirement, the end must be very tragic.


Therefore, each family is thinking about how to cool the M.2 SSD of NVMe. The current cooling methods mainly include the following three types:


First: M.2's SSD itself comes with aluminum heat sink:



Second, on the motherboard's M.2 interface, simply bring a metal heatsink for the bare NVMe M.2 SSD:




Third: There are also some hard disk boxes that support NVMe M.2 SSD, which will be supplied with thermal silicon:



Recently, there has been another cooling black technology, which is the heat dissipation of graphene. The sample of Asgart has already flowed out. Let's take a look at this product, code-named AN2, and how the heat dissipation effect is:




Before we unveil the effects of graphene before and after heat dissipation, let us first introduce to you what is graphene:


Graphene is a two-dimensional sp2 hybrid bond and a single layer of carbon atom crystals. Its excellent mechanical, optical, electronic and thermal properties have aroused widespread interest in the scientific community and industry. The excellent properties of graphene also make it useful in a wide range of fields such as electronics, photonics, chemistry, biology and their interdisciplinary. Graphene has a very high thermal conductivity, and the single layer of suspended graphene is as high as 5300 W/(m·K), which is much larger than the traditional metal heat dissipating materials such as copper (about 400 W/(m·K)) and aluminum (about 240 W/(m·K)). The high thermal conductivity and other excellent properties make graphene a promising next generation heat and heat management material.


So what is graphene applied to the new NVMe M.2 SSD from Asgard? It has only a thin piece. The picture below is a real object. The surface is a layer of ordinary PVC, and the middle gray interlayer is graphene.


On the thickness, even 1mm is not enough, can really achieve a strong heat dissipation effect? Let's take a look at it.


First test the NVMe M.2 SSD bare strip of the Asgart code AN2:



This new product uses the Huirong SM2263XT, the speed is up to 667MT/s, the maximum reading and writing is up to 2200MB/S, 1500MB/s, random 4K up to 250K/220K IOPS, designed for M.2 and PCIE SSD. It also supports NVME1.3. NVMe1.3 adds a number of new features, including DeviceSelfTests, BootPartitions, Sanitize, Virtualization, NamespaceOptimalIOBoundary, DirectivesandStreams (Directives and Streams) , Non-OperationalPowerStatePermissiveMode (inoperable power state allow mode), HostControlledThermalManagement (host control thermal management) and so on.



Now let's first test the bare strips:





After testing the five mainstream software, you can see that the read and write speed of the NVMe M.2 SSD is not much different from that of the official announcement. It is an excellent product.


Then, carry out a high load test to pull up the temperature of the bare strip.


Here is a brief introduction to this stress test software: PassMark BurnInTest is a free computer performance stability test tool that can test CPU, hard drive, memory, network, optical drive, sound card, video card and printer at the same time as multi-threaded applications. . Under high load, it allows the above hardware to be fully operational and the temperature to soar. If you use it under normal conditions, there will be no such high temperature increase.


After testing for more than 20 minutes, let's look at the temperature of the bare strip with a warm gun:


As can be seen from the figure, the bare strip temperature reached 60°. Compared with the high temperature of 70° in the past, it can be said that this master control has better optimized the temperature control than the previous generation.


Next, we took AN2 down, attached graphene, and also worked on high-load software:



After more than 20 minutes, we still use a warm gun to see the temperature at this time:


Only 52°. It is 8° lower than the previous die, and the cooling effect is very significant.




This is the AN2's Asgart NVMe M.2 SSD, although its appearance is simple, but its performance and temperature are greatly improved compared with the past. It is believed that because of the use of graphene, the ideal cooling effect is achieved. There will be more brands to follow up with this heat sink material.


Now, you can safely plug this large-capacity NVMe M.2 SSD into your notebook that is about to burst.


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