Report: Prototype testing in Dubai

As mentioned in our roadmap, we did a prototype testing of our liquid cooling for the graphics cards used in the Cube and RenderMaster in Dubai last year. Of course, we want to share the results of this test.

Smart City Dubai

Dubai is the fastest growing city in the world and is known for its progressive attitude in technological terms. Dubai’s smart city strategy also uses blockchain.

Dubai prototype testing

Launched by His Highness Sheikh Hamdan, the Dubai Blockchain Strategy, is a result of a collaboration between the Smart Dubai Office and the Dubai Future Foundation to continually explore and evaluate the latest technology innovations that demonstrate an opportunity to deliver more seamless, safe, efficient, and impactful city experiences. The Dubai Blockchain Strategy will help Dubai achieve the vision of H.H. Sheikh Mohammed bin Rashid Al Maktoum by making “Dubai the first city fully powered by Blockchain by 2020

Dealing with heat and dust

The liquid cooling used in our products was tested in extreme conditions in Dubai in July 2018. The average temperature in Dubai in July 2018 was about 37 ° C. The dust load and high temperatures of the mining farms located there qualified Dubai as the perfect location for our prototype test.

Dubai prototype testing temperatures

The problem for Dubai’s existing mining farm is the high outdoor temperatures and dust. The graphic cards run hot regularly and have to be restarted due to overheating. Conventional fans no longer withstand the demands of cooling mining graphics cards – a professional liquid cooling provides a remedy.

The full-copper graphics card cooler made by Alphacool provides optimal cooling of every single graphics card even under such extreme temperatures and dust. This is why this cooling is also used in the azultec products.

During our first visit we could already witness the overloaded air cooler of the GPUs with your own eyes. The following video shows a graphic cards fan running in an office with air conditioning. Due to the continuous use and the associated load, the material wore down rapidly.

With only a few mining racks and running air conditioning the graphics cards in the office ran hot and had to be restarted, due to overheating. There were more extreme conditions on the associated mining farm, which was located in a warehouse in the Investments Park of Dubai. Here, the mining racks stand close to each other. Conventional fans and additionally fans provide cooling, as well as air conditioning was used in an attempt to cool the rigs down. The temperature in one of the rooms was over 40 degrees Celsius, the other room was not even accessible without turning off the graphics cards beforehand due to the temperatures.

Prototype testing liquid cooled rig in Dubai
Example of a water-cooled mining rig

Comparison: Before and after installation of our liquid cooling

The temperatures of the GPUs were around 80 degrees Celsius in the mining rigs before the liquid cooling was installed. Many of the rigs stationed there had to be restarted every few minutes as the temperature rose even higher, reaching 90-100 degrees.

Prototype testing in Dubai temperature without liquid cooling
Temperature without liquid cooling

After installing the water cooling, the temperatures settled to about 50 degrees, eliminating the overheating problem.

Prototype testing in Dubai temperature with liquid cooling
Temperature with liquid cooling installed

Conclusion of the prototype testing in Dubai:

Reducing the temperatures of the GPUs by almost 50% showed a great success of our liquid cooling solution and allowed the rigs to not only work on full force, but also prolong the life of the used GPUs, as the temperatures are way below 100 degrees Celsius!

In addition to the reduced temperature, the issue of dust was eliminated as well, as the mining rig did not use fans anymore and the radiator for the liquid cooling can be set up separately.

This qualified our liquid cooling solution to be used in our own products, helping to cool the GPUs used in our rendering machines and opening up more options, like the recuperation of the heat produced during high workloads.

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