Whatsminer Schematics

Whatsminer hashboard and control board schematics. Circuit diagrams and pinout references for MicroBT mining hardware.

Overview

This page collects publicly available schematics and technical references for MicroBT Whatsminer hardware. Whatsminer schematics are generally less publicly available than Antminer schematics, but the repair community has documented key circuit sections.

Disclaimer: AZIC does not host proprietary schematics. We link to publicly available community resources. Always verify schematic accuracy against your specific hardware revision before using for repair.

Schematic Availability by Model

Model	Hashboard	Control Board	Block Diagram	Status
M60 / M60S	Limited	Limited	Partial	Very new, limited data
M50 / M50S	Partial	Partial	Available	Growing community docs
M30S / M30S++	Available	Available	Available	Well documented
M20S	Available	Available	Available	Complete
M10	Available	Available	Available	Complete

M60 Series

The M60 series is MicroBT's latest generation:

Uses custom ASIC chips
New PCB layout with improved power delivery
Limited public documentation due to recent release
Community reverse-engineering in progress

M50 Series

M50S Hashboard Architecture

Section	Description
Power input	12V DC from PSU
Buck converters	Per-domain regulation, custom MicroBT topology
ASIC chain	MicroBT proprietary ASIC chips
Signal distribution	SPI-based chip communication
Temperature	Multiple temperature sensors per board
Identification	Board ID via I2C EEPROM

Key Differences from Antminer

Whatsminer hashboards differ from Antminer in several ways:

Feature	Antminer (Bitmain)	Whatsminer (MicroBT)
Chip communication	UART-based chain	SPI-based
Voltage regulation	Discrete buck converters	Integrated power modules
Board shape	Rectangular, uniform	Model-specific layouts
Connector type	Ribbon cables	Varies by model
PIC bridge	PIC16F1704 on some models	Different microcontroller

M30S Series

The M30S is the most documented Whatsminer model:

M30S Hashboard

Custom MicroBT ASIC chips
Multiple voltage domains with integrated regulators
SPI communication bus between chips
Temperature sensors at multiple board locations

M30S Control Board

Component	Description
Processor	ARM-based SoC
RAM	DDR3 SDRAM
Storage	NAND flash for firmware
Network	10/100 Ethernet
Fan control	PWM headers
Hashboard interface	3 hashboard connectors

Available M30S Documentation

Partial hashboard schematic (community contributed)
Control board block diagram
Test point locations for voltage domains
Connector pinouts for hashboard cables

Whatsminer-Specific Repair Notes

SPI vs. UART: Whatsminer uses SPI (Serial Peripheral Interface) for chip communication instead of UART. This affects how you trace signal chains and diagnose communication failures. SPI uses CLK, MOSI, MISO, and CS signals rather than TX/RX.

Common Whatsminer Repair Challenges

Challenge	Notes
Tighter component spacing	More difficult to probe individual chips
Integrated power modules	Less repairable than discrete buck converters
SPI communication	Different diagnostic approach than Antminer
Potted components	Some models use epoxy potting, limiting access
Limited documentation	Fewer public schematics than Antminer

Where to Find Whatsminer Schematics

Source	Notes
Mining repair forums	Community reverse-engineered diagrams
Telegram groups	Whatsminer-specific repair channels
MicroBT authorized service	Service partners may have official documentation
Chinese repair communities	Some service manuals shared

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