Whatsminer M20 M20S M21 Series Hash Board Tester – Diagnose ASIC Chips, Reset & Temp Sensor Faults

Whatsminer M20 M20S M21 Series Hash Board Tester | Diagnose ASIC Chips, Reset & Temp Sensor Faults

The Whatsminer M20 / M20S / M21 series hash board tester is a professional-grade diagnostic fixture engineered for technicians and repair centres servicing the M2x ASIC mining family. It quickly identifies hash board failures across the spectrum that matters in production mining — ASIC chip faults, reset errors, temperature sensor malfunctions, and low hash rate issues — minimising downtime and maximising operational efficiency on every refurbishment cycle.

Built for the realities of mining workshops and farms, the tester ships in a shockproof, dust-resistant ABS shell that protects internal components from drops, short circuits, and harsh mining-environment conditions. Connect via Ethernet to a computer for real-time fault log analysis — precise troubleshooting, captured directly off the LAN, no extra software bridge required.

Rugged, High-Accuracy Diagnostic Tool for WhatsMiner M20S+, M21S & More

• Exclusive LYS-SZ design — purpose-built for WhatsMiner M2x series diagnostics.
• Multi-fault detection — covers ASIC chips, reset failures, temperature sensors, and hash rate drops.
• Industrial-grade protection — reinforced shockproof, dust-resistant casing for field use.
• Fast log retrieval — instant fault reports via the LAN connection.
• Multi-model coverage — works across M20, M20S, M20S+, M21, and M21S boards.

How the M20-Series Tester Speeds Up Repair Workflows

A repair bench's biggest cost is technician time spent guessing at intermittent faults. With the M20/M21 hash board tester wired in over LAN, the workflow collapses to: connect the suspect hash board, power up, capture the live fault log, and route the board into the matching repair queue (chip-level rework, sensor replacement, reset-line repair, etc.). For mining farms running M20-series fleets at scale, the time saved per board adds up to meaningful uptime recovery across the quarter.

Whatsminer M20 M20S M21 Hash Board Tester Specifications

Related products

• Whatsminer M60 / M50 / M30 Hash Board Tester
• Whatsminer CB2 V8 H3 Control Board (M20/M21)
• Whatsminer CB4 V10 H6 Control Board (M20S+/M30S/M31S+)
• Whatsminer KF1922 Tin Tool Kit – M20 / M21 ASIC Repair

Equipping a repair workshop or farm with M20-series testers in volume? Email contact@lys-sz.com for bulk pricing and matched repair-bench kits. Worldwide shipping from our Shenzhen warehouse.