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As Ethereum mining continues to gain popularity, many miners have begun to invest in larger and more powerful GPU rigs to help increase their mining profits. One of the challenges that miners face is the issue of cooling these powerful rigs, as they can generate a significant amount of heat, which can lead to overheating and reduced mining efficiency.
In this article, we will be discussing an airflow solution to help cool down a 12-GPU Ethereum mining rig, using a unique combination of fans and ducts to help maintain optimal temperatures. This rig is comprised of a variety of 1060s, 1080s, and 1660 Ti GPUs, all housed within an ASRock H110 Pro motherboard.
Current Cooling Challenges
The main issue faced by our current rig is the overheating problem when the fan is switched off. It has been observed that temperatures reach around 96, 97, and 108 degrees in different parts of the rig without the fan running, a clear indication that the current cooling solution is inadequate.
As a result, there is an urgent need to implement an improved cooling solution that can sustain efficient mining without overheating regardless of whether the fan is on or off.
One possible solution to this problem is to install a series of Arctic P12 120mm cooling fans with a CFM rating of 56.3. These fans can be attached to the Triple A Wave frame of the rig, with the aim of blowing cool air directly across the GPU cards to help maintain optimal temperatures. The main question to address here is which direction the fans should blow the air – from the rear of the rig to the front, or vice versa.
After considering the airflow and the design of the room, it was concluded that blowing the air from the rear towards the front is more effective. This setup allows the fans to blow cool air directly onto the GPU cards, with the exhaust ducts helping to suck the warm air upward and away from the rig.
Improved Cooling Solution
To implement this cooling solution, the first step is to clean and manage the cables in and around the rig to ensure they do not obstruct the airflow from the fans. Next, eight Arctic P12 fans are installed onto the frame, each secured with just two screws to ensure they remain in place.
Connecting the fans to the power supply requires a fan splitter or multiple splitters, depending on how many fans are being used. For this rig, a one-to-six fan splitter, combined with a one-to-three splitter, is sufficient to power all eight fans. It is worth considering purchasing a dedicated fan splitter to ensure the fans receive adequate power without having to rely on a single motherboard header.
Testing the Improved Cooling Solution
After installing the fans and connecting them to the power supply, it is essential to test the efficiency of the new cooling system. This involves running the mining rig for around 10-15 minutes to allow the GPUs to warm up, and then monitoring the temperature levels reported by Hive OS.
So, after testing this new cooling system, the results were quite promising:
– The Nvidia 1080 Founders Edition GPU, initially reporting at 73°C, dropped to 63°C after the cooling solution was implemented.
– The 1080 PNY GPU showed a decrease in temperature from 75°C to 63°C.
– The EVGA 1060 GPU displayed a temperature reduction from 74°C to 69°C.
The improved cooling solution proved to be effective in maintaining optimal GPU temperatures, especially for the cards at the top of the rig, which saw the most significant temperature reductions. With a combination of carefully positioned fans and efficient airflow management, this cooling system can help miners to continue mining Ethereum at optimal efficiency without the risk of overheating.
Credit must be given to Triple A Wave for providing the components utilized in this project – the mining frame and the Arctic P12 cooling fans. Links to purchase these items and other recommended products featured in this article can be found in the description below.
In conclusion, investing in a powerful GPU rig for Ethereum mining is a significant undertaking. Ensuring that your setup is appropriately cooled and operating at peak efficiency is paramount to safeguarding your investments and maximizing your mining profits.