{"product_id":"whatsminer-m20-m20s-m21-hashboard-tester","title":"Whatsminer M20 M20S M21 Series Hash Board Tester – Diagnose ASIC Chips, Reset \u0026 Temp Sensor Faults","description":"\u003ch2\u003eWhatsminer M20 M20S M21 Series Hash Board Tester | Diagnose ASIC Chips, Reset \u0026amp; Temp Sensor Faults\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWhatsminer M20 \/ M20S \/ M21 series hash board tester\u003c\/strong\u003e is a professional-grade diagnostic fixture engineered for technicians and repair centres servicing the M2x ASIC mining family. It quickly identifies \u003cstrong\u003ehash board failures\u003c\/strong\u003e across the spectrum that matters in production mining — \u003cstrong\u003eASIC chip faults, reset errors, temperature sensor malfunctions, and low hash rate issues\u003c\/strong\u003e — minimising downtime and maximising operational efficiency on every refurbishment cycle.\u003c\/p\u003e\n\u003cp\u003eBuilt 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.\u003c\/p\u003e\n\u003ch3\u003eRugged, High-Accuracy Diagnostic Tool for WhatsMiner M20S+, M21S \u0026amp; More\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExclusive LYS-SZ design\u003c\/strong\u003e — purpose-built for WhatsMiner M2x series diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-fault detection\u003c\/strong\u003e — covers ASIC chips, reset failures, temperature sensors, and hash rate drops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial-grade protection\u003c\/strong\u003e — reinforced shockproof, dust-resistant casing for field use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast log retrieval\u003c\/strong\u003e — instant fault reports via the LAN connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-model coverage\u003c\/strong\u003e — works across M20, M20S, M20S+, M21, and M21S boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow the M20-Series Tester Speeds Up Repair Workflows\u003c\/h3\u003e\n\u003cp\u003eA 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.\u003c\/p\u003e\n\u003ch4\u003eWhatsminer M20 M20S M21 Hash Board Tester Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWhatsminer M20, M20S, M20S+, M21, M21S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Capabilities\u003c\/td\u003e\n\u003ctd\u003eASIC chips, reset errors, temp sensors, low hash rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuild Quality\u003c\/td\u003e\n\u003ctd\u003eShockproof, dust-resistant ABS shell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eEthernet (LAN) for real-time fault logging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse Case\u003c\/td\u003e\n\u003ctd\u003eMining repair centres, large-scale farms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/whatsminer-m60-m50-m30-hashboard-tester\"\u003eWhatsminer M60 \/ M50 \/ M30 Hash Board Tester\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/whatsminer-control-board-cb2v8-h3-motherboard-replacement\"\u003eWhatsminer CB2 V8 H3 Control Board (M20\/M21)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/whatsminer-cb4v10-h6-control-board-m20-m30-m31-m32\"\u003eWhatsminer CB4 V10 H6 Control Board (M20S+\/M30S\/M31S+)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/whatsminer-kf1922-tin-tool-asic-repair-m20-m21\"\u003eWhatsminer KF1922 Tin Tool Kit – M20 \/ M21 ASIC Repair\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEquipping a repair workshop or farm with M20-series testers in volume? Email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e for bulk pricing and matched repair-bench kits. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":44798211686579,"sku":null,"price":64.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/Whatsminer-M20-M20S-M21-Series-Hash-Board-Tester-Diagnose-ASIC-Chips.webp?v=1751588766","url":"https:\/\/lys-sz.com\/products\/whatsminer-m20-m20s-m21-hashboard-tester","provider":"LYS Shenzhen","version":"1.0","type":"link"}