💡 Tip: The following article data is for reference only. Please refer to the actual situation and customer service response for details.
Of course! Building a Bitaxe Supra Hex 702 miner by yourself is not only completely feasible, but the process is full of control and technical fun. It is essentially an open-source hardware kit that requires you to assemble and configure it yourself, with the core being 6 BM1368 ASIC chips (hash rate approximately 4.2 TH/s). The entire process is divided into four steps: preparing the hardware list, completing physical assembly, flashing the configuration firmware, and upgrading the cooling solution. Below, I'll take you through this exciting and somewhat addictive DIY journey.
Hardware List? 🔧 Detailed
The essence of the hardware list is one sentence: don't think it's just buying a board and chips; missing a bunch of small accessories can make you crash on the spot. Some customers forgot to apply thermal paste the first time, causing the chip temperature to soar directly to 75°C, forcing a three-day shutdown waiting for delivery. According to the official TinyChipHub kit and community-upgraded cooling solutions, the core components are divided into three categories: main control, hash rate, and accessories.
- Main Control Core: Bitaxe Supra Hex 702 PCB motherboard (1 piece). This motherboard is the brain, one of the hottest designs in the open-source miner community in early 2025.
- Hash Rate Body: BM1368 ASIC chips (6 pieces), these are the real "miners". Each chip has a theoretical hash rate of about 600 GH/s, with the entire machine ideally reaching about 4.2 TH/s. Remember to must buy genuine original chips; second-hand, refurbished, or uncertified chips have failure rates high enough to make you doubt life.
- Accessory Components: 12V/10A power supply, cooling fans (2 pieces), Bitaxe enhanced heatsink, thermal paste, universal display screen, assorted dedicated screws, acrylic plates, etc.
Focus on compatible power supplies: absolutely do not use old computer power supplies thinking they'll suffice. The Bitaxe Supra Hex 702 miner has a peak power consumption of about 100W, requiring clean and stable 12V input. TinyChipHub officially tests each unit with a specified power supply before shipping, controlling voltage fluctuations within ±0.1V, with the hash rate stable at 4.2 TH/s. According to the Open Source Miner Summit 2023 report, over 40% of DIY miner failure cases stem from incompatible or poor-quality power accessories.
🔥 Key Tip: It is recommended to purchase the motherboard and chips directly from reliable suppliers like TinyChipHub in a bundle, which can save a lot of compatibility headaches. When purchasing chips separately, look for BM1368 ASIC chips, and note that performance may vary slightly between batches, which is normal.
📚 Complete Assembly Process!
The assembly process is a precise "surgical operation"; hands must be steady, hearts must be careful, and if the order is wrong, it might burn the chips. The goal is to turn a pile of parts into a machine that can roar with hash rate power; the core is zero short circuits and 100% contact. Referencing over five high-view-count tutorials on YouTube, the most stable process summarized is the following one. Strictly following this process can increase the first-time success rate of powering on to over 95%.
How does this process work? It follows strict electronic assembly logic: first logical connections (control part), then power connections (power supply part), and finally encapsulation testing. Imagine performing heart bypass surgery on a robot; wrong wiring is a medical accident. I break it down using a layered definition method:
- Stage 1: Motherboard Heatsink Connection. Ensure thermal paste is applied to the positions corresponding to the ASIC chips, then connect the Bitaxe enhanced heatsink to the designated interface on the hash rate board. There is a foolproof design here; if inserted backwards, it won't go in, but don't use brute force. Use corresponding screws to secure the circuit control board.
- Stage 2: Control Board Base. Align the assembled motherboard with the acrylic plate and tighten the screws!
- Stage 3: Cooling "Exoskeleton" Installation. Use screws to fix the fans to the designated acrylic plate. Note the fan airflow direction is blowing towards the heatsink (airflow), don't install it backwards. Also, manage the fan wires neatly for easy connection to the hash rate control board.
- Stage 4: Data Visualization Connection. Before connecting the upper acrylic plate of the cooling fan, first plug in the small display screen, then connect all the fan wires to facilitate fan startup and data display!
- Stage 5: Double-Layer Acrylic Plate Testing. The final step is, of course, to check if everything is installed correctly, then tighten the two assembled acrylic plates with screws, plug in the 12V/10A power supply, and when the display lights up, the Bitaxe Supra Hex 702 miner is officially completed!
💪 Key Tip: Perform the entire assembly on an anti-static mat or while wearing anti-static gloves, or at least find a way to discharge static electricity. ASIC chips are extremely sensitive to static electricity; one careless moment, and the 4.2 TH/s hash rate might say goodbye to you. In the YouTube video (refer to the video above), disassembling and assembling a Bitaxe Hex and SupraHex (similar type of miner) took 6 minutes (average assembly only 3 minutes). Beginners are advised to allocate 10 minutes for careful inspection.
Firmware Configuration? 🖥️
The essence of firmware configuration is "flashing a soul" into your miner, telling it where to mine and how to mine. The biggest advantage of the Bitaxe series is its open-source nature; you can compile the firmware yourself or use pre-compiled .bin files from community experts. I strongly recommend beginners use pre-compiled versions for peace of mind.
The process is actually simple, but details determine success or failure:
1) Use Google Chrome to access the Web Flasher page (however, it is recommended to use v2.11.1-TCH here, which further adapts the original open-source firmware for TCH's home miners);
2) Use the corresponding data cable to connect the miner to the computer and enter flashing mode;
3) According to the tutorial provided by TinyChipHub on GitHub ESP-Miner-TCH, select the corresponding firmware file and click flash.
The entire process takes about 2~5 minutes. According to community data from March 2024, the success rate using Web Flasher is as high as 98%, far exceeding the traditional ESP-IDF command line method.
After successful flashing, the Bitaxe Miner will generate an IP address itself. Connect with your phone/computer, and set your mining pool address (e.g., stratum+tcp://us.btc.com:3333), wallet address (or sub-account name), and worker name in the web interface. Note here: do not enter the wrong wallet address, otherwise, you'll truly be "mining for love". It is recommended to keep the default settings for the first run and try fine-tuning after stable operation for 24 hours. If after configuration the miner status light is on but there is no hash rate in the background, 90% of the time it is due to an incorrect mining pool address or port; go back and check carefully.
Cooling? 🔥 Key Points
The essence of cooling is a race against heat; the goal is not "coolness" but "stability below the chip's tolerance critical point". The junction temperature of BM1368 chips is recommended to run long-term below 65°C; exceeding 80°C will trigger throttling or even damage.
Cooling is the "life support system" of the Bitaxe Supra Hex; if you can't handle cooling, your miner won't survive one summer. The Bitcoin Mining Association 2023 report states that for every 10°C over the safety line, the chip lifespan decay rate accelerates by 4 times. How does cooling work? It is a dynamic balance: chip generates heat → thermal paste transfers → heatsink spreads → fan airflow carries away.
| Correct Practice (✅) | Common Mistakes (❌) | Result Comparison |
|---|---|---|
| Install two enhanced cooling fans to form a forced air duct | Only install one fan or use inferior oil-bearing fans | Airflow increased by 100%, and noise is controllable |
| Place the miner in a well-ventilated area with ambient temperature <25°C | Stuff it into a closed cabinet or near a radiator | Ambient temperature reduced by 5°C, chip temperature reduced by 2~3°C |
| Regularly (monthly) clean heatsink dust with compressed air | Never clean, letting dust act as a "quilt" | The long-term degradation of heat dissipation efficiency can be as high as 50%. |
How to solve the noise problem? If sensitive to sound, you can use high-quality hydraulic bearing fans (e.g., Noctua), or adjust the fan speed to 70%-80% via firmware, trading a slight temperature increase for quietness. Remember, there is no only solution for cooling, only the most balanced solution suitable for your desktop environment and tolerance. Cooling is a systematic project. You can monitor the temperature in real-time through the firmware backend; the ideal operating temperature range is 50°C-70°C. If the temperature consistently exceeds 75°C, the system may automatically throttle for protection, and your hash rate will drop from 4.2 TH/s to 3.9 TH/s, which would be a huge loss.
❄️ Advanced Play: For seasoned veterans who strive for perfection., consider unified modification of the miner, pressing the temperature of the overclocked Bitaxe Supra Hex below 65°C, and stabilizing it for 7x24 hour operation. However, for most home miners, managing the air duct and cleaning well is enough to make your mine stable.
