ASIC Miner Antminer S19 Water Cooling Board

The water cooling system offers five key advantages over stock air cooling:

1. Superior Heat Dissipation: Liquid cooling plates maintain optimal chip temperatures even under sustained high load, preventing the performance drops that air-cooled miners experience in warm environments .

2. Near-Silent Operation: The dramatic noise reduction from 75 dB to under 35 dB makes the miner suitable for home or office environments .

3. Dust-Proof Operation: The closed-loop system prevents dust accumulation inside the miner, significantly reducing maintenance frequency and extending hardware lifespan .

4. Extended Hardware Longevity: Lower operating temperatures reduce thermal stress on ASIC chips, which can extend the miner’s operational life .

5. Environmental Adaptability: Water-cooled miners can operate reliably in harsh conditions (hot, humid, or dusty) where air-cooled machines would fail or throttle .

The installation process involves modifying the hash boards and connecting to an external radiator . A high-level overview of the key steps:

Hash Board Modification (Internal):

1. Power off the miner completely and disconnect mains power before opening the chassis.

2. Remove the screws on the fan and conductive copper sheets, then extract the three hash boards.

3. Disassemble the original heat sinks and thoroughly clean the ASIC chips and board surfaces.

4. Apply new thermal grease evenly to each ASIC chip (use 4W or 6W thermal grease depending on the model).

5. Align each water cooling plate with the ASIC chips and screw holes, then secure firmly to the hash board.

6. Reinstall the modified hash boards into the miner chassis and reconnect all cables.

External Radiator Connection:

1. Install the water diverter(s) on the fan baffle and mount the baffle where the original cooling fans were located.

2. Connect the water pipes from each water cooling plate to the diverter(s).

3. Connect the external radiator and water pump following the manufacturer’s instructions.

4. Plug fan speed simulators into the control board’s fan connectors to prevent fan-fault errors.

5. Add coolant to the water pump, run the system, and continue adding coolant until the water level stabilizes.

Note: A fan-speed simulator is critical—it must be installed so the controller doesn’t trip a fan-fault once the air fans are removed.

The water cooling board is confirmed compatible with the following S19 series miners :

• Antminer S19J Pro 104T (primary target model)

• Antminer S19i

• Antminer S19 XP

• Antminer S19 (standard model)

• Antminer S19J Pro+

• Antminer S19A

Always verify compatibility with your specific model before purchasing, as hash board configurations may vary.

Yes, the water cooling system enables stable overclocking beyond stock specifications. Key overclocking capabilities include:

For standard overclocking to 120+ TH/s, the water cooling board alone is sufficient . For aggressive overclocking, consider pairing with the C87 control board and a high-capacity cooling system .

The water cooling system dramatically improves environmental tolerance compared to air cooling:

• Maintains stable operation in ambient temperatures where air cooling would cause throttling

• The closed-loop system prevents performance degradation from dust accumulation

• For the external radiator, a well-ventilated outdoor or semi-outdoor location is recommended for optimal heat rejection

• Coolant levels should be monitored periodically; during initial operation, the water level will drop and require replenishment until stable