Fan Simulator 4pin ATX for Whatsminer M30 M31 M32 M33 M50 M60 Series
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Fan Simulator 4-pin ATX for Whatsminer M30 / M31 / M32 / M33 / M50 / M60 – Immersion Cooling
The 4-pin ATX Fan Simulator is a compact plug-and-play dongle that emulates a running fan's tach signal on Whatsminer M30, M31, M32, M33, M50 and M60 series miners. When a miner is converted to water or oil immersion cooling, the original fans are removed — but the miner firmware still expects valid fan RPM reports and will throw "fan missing" errors or shut down otherwise. This simulator satisfies the firmware check so the miner keeps hashing safely in the immersion loop.
Fan Simulator Specifications
| Features | Description |
|---|---|
| Plug & Play | Easy installation, immediate functionality — no firmware edit required |
| Connector | 4-pin square ATX connector for seamless compatibility |
| Compatibility | Whatsminer M30, M31, M32, M33, M50, M60 series |
| Application | Water / oil immersion / blower cooling conversions |
| Function | Emulates fan tach signal to bypass "fan missing" firmware checks |
| Weight | 10 g |
| Condition | Brand New |
Why a Fan Simulator Is Required on Immersion Whatsminers
Whatsminer firmware continuously monitors fan RPM via the 4-pin tach line. If any fan reports zero RPM, the miner will: log a fan fault, throttle hashrate, or shut the miner down outright. Removing fans for immersion cooling triggers exactly that fault. Plugging this simulator into the fan header provides a constant valid tach pulse — firmware sees "healthy fan" and lets the miner run at full hashrate inside the dielectric fluid.
Installation Notes
Disconnect the original fan harnesses before submerging the miner. Plug one simulator per fan header the firmware expects (typically 2 per Whatsminer M-Series miner — front and rear). Keep the simulator dry-side or sealed if it must sit inside the tank; while small, its electronics are not rated for extended oil contact. For higher-pin variants (6-pin), use the matching 6-pin simulator from our range.
Related Whatsminer Immersion & Fan-Sim Parts
- Whatsminer 4-pin Fan Simulator – P21 / P221 / P222 PSU
- 6-pin Whatsminer Fan Simulator – M31 / M31s
- 6-pin Fan Simulator – Innosilicon / Whatsminer
- Whatsminer M60 / M50 / M30 Hashboard Tester
Keep your immersion-cooled Whatsminer hashing at 100 %. Order online or contact us at contact@lys-sz.com for farm-scale simulator kits. Worldwide shipping from our Shenzhen warehouse.
Shipping & Customs
🇺🇸🇪🇺 USA & European Union (DDP):
Orders are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world:
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.
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