A motherboard designed for QIDI 3D printers, featuring various electronic components and connectors. QIDI X-Max / X-Plus Motherboard | OEM 32-Bit Replacement Board

QIDI X-Max/X-Plus Motherboard for 3D Printers | Qidi Tech Qidi 3D Printer

$189.99

QIDI X-Max / X-Plus Motherboard — OEM 32-Bit Replacement Mainboard The QIDI X-Max / X-Plus Motherboard is a factory-original 32-bit ARM Cortex-M4 replacement mainboard for QIDI X-Max and X-Plus 3D printers,...

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Description

QIDI X-Max / X-Plus Motherboard — OEM 32-Bit Replacement Mainboard

The QIDI X-Max / X-Plus Motherboard is a factory-original 32-bit ARM Cortex-M4 replacement mainboard for QIDI X-Max and X-Plus 3D printers, priced at $189.99, featuring TMC2209 silent stepper drivers, built-in WiFi, 24V power input, 5-axis control, and pre-flashed QIDI firmware — it restores full printer functionality in 30 minutes when the original board fails from power surges, boot loops, burnt MOSFETs, or unresponsive touch screens, and is the only OEM-compatible board that requires no wiring changes or firmware configuration.

The QIDI X-Max / X-Plus Motherboard is the official replacement control board for QIDI X-Max (large-format 300x250x300mm) and QIDI X-Plus (200x200x200mm) 3D printers. If your printer shows no signs of power, fails to boot past the logo screen, displays error codes on the touch screen, has burnt or smoking components, or stops responding to commands, the motherboard is likely the culprit. This OEM board comes pre-flashed with the latest QIDI firmware, includes all connector labels, and is a direct drop-in replacement — no soldering, no firmware flashing, no wiring modifications required. Simply disconnect the old board, mount the new one, reconnect the labeled connectors, and power on.

$189.99
Free US Shipping (15-25 business days) | 30-Day Return Policy | OEM Factory Original

Product Specifications

Parameter Specification
Product Name QIDI X-Max / X-Plus Motherboard
Compatibility QIDI X-Max, QIDI X-Plus (all revisions)
Processor 32-bit ARM Cortex-M4 (STM32F407VGT6, 168MHz)
Flash Memory 1MB
RAM 192KB SRAM
Stepper Drivers 5x TMC2209 (UART mode, silent, 256 microsteps)
Axes Supported X, Y, Z, E0, E1 (dual extruder ready)
Input Voltage 24V DC
Max Heater Current 15A (hotend MOSFET), 15A (bed MOSFET)
Thermistor Inputs 3 (hotend 1, hotend 2, heated bed)
Fan Outputs 4 (part cooling x2, hotend cooling, controller fan)
Endstops 5 (X, Y, Z min/max configurable)
Connectivity WiFi 802.11 b/g/n, USB Type-B, Micro SD card slot
Display Interface Resistive touch screen (40-pin FPC connector)
Firmware Pre-flashed QIDI proprietary firmware (latest version)
Board Dimensions 120mm x 90mm x 20mm (with heatsink)
Board Weight 145g
Mounting Holes 4x M3 (70mm x 50mm spacing, matches original)
Connectors All JST-XH and JST-PH, labeled, keyed (no reverse insertion)
Heatsink Aluminum heatsink on stepper driver ICs, pre-installed
Protection Over-voltage, over-current, thermal shutdown, reverse polarity fuse
Warranty 90 days from delivery
Price $189.99

What's in the Box

Item Quantity Description
QIDI X-Max / X-Plus Motherboard 1 Pre-flashed OEM mainboard with heatsink, all connectors labeled
Mounting Screws 4 M3 x 8mm screws for securing board to chassis
WiFi Antenna 1 2.4GHz external antenna with IPEX connector (pre-attached)
USB Cable 1 USB Type-B to Type-A, 1m (for firmware updates / direct printing)
Quick Start Guide 1 Printed installation guide with connector diagram and troubleshooting
Anti-Static Bag 1 ESD-safe packaging for board protection

Key Features

32-Bit ARM Cortex-M4 Processor

The STM32F407VGT6 runs at 168MHz with 1MB flash and 192KB RAM, delivering smooth motion planning, fast G-code processing, and support for complex prints with thousands of segments. The 32-bit architecture eliminates the 8-bit bottleneck that causes stuttering on high-speed prints.

TMC2209 Silent Stepper Drivers

Five TMC2209 drivers operate in UART mode with 256 microsteps, providing near-silent operation (below 45dB) and precise motion control. StallGuard2 technology detects motor stalls without endstops, and CoolStep reduces motor current when idle to save energy and reduce heat.

Built-in WiFi

The integrated 802.11 b/g/n WiFi module enables wireless printing, remote monitoring, and firmware updates via the QIDI mobile app or web interface. No external WiFi adapter needed — the antenna is pre-connected and tested at the factory.

Pre-Flashed Firmware

The board arrives with the latest QIDI proprietary firmware pre-installed and calibrated for X-Max and X-Plus. No firmware download, no SD card flashing, no configuration — just connect and power on. The firmware supports auto-bed-leveling, dual extrusion, and all QIDI-specific features.

Direct Drop-In Replacement

All connectors are keyed and labeled to match the original board's wiring harness. The mounting holes, board dimensions, and connector positions are identical to the OEM board. Installation takes 30 minutes with only a Phillips #2 screwdriver — no soldering, no crimping, no wiring changes.

When Do You Need This Motherboard?

Symptom Likely Cause Motherboard Fix?
No power, no lights, no fan Blown fuse, burnt voltage regulator, dead power input Yes — replace motherboard
Stuck on QIDI logo screen Corrupted firmware, failed flash chip, boot loop Yes — replace motherboard (pre-flashed)
Touch screen unresponsive Faulty display driver circuit on board Yes — replace motherboard
Error code: "Heater fault" / "Thermal runaway" Burned MOSFET, faulty thermistor reading circuit Yes — replace motherboard
Axis not moving / grinding noise Failed stepper driver (TMC chip burned) Yes — replace motherboard
Smoke / burning smell from electronics Short circuit, capacitor failure, MOSFET burnout Yes — replace motherboard immediately
WiFi not connecting Faulty WiFi module or antenna Maybe — try antenna first, then board
USB not recognized Faulty USB controller chip Yes — replace motherboard
Bed not heating Burned bed MOSFET on board Yes — replace motherboard
Random reboots during print Overheating voltage regulator, unstable power circuit Yes — replace motherboard

Pros & Cons

Pros

  1. OEM factory original: Exact same board that ships with new QIDI X-Max and X-Plus printers — guaranteed compatibility, no fit issues, no wiring changes.
  2. Pre-flashed firmware: Latest QIDI firmware installed and calibrated at the factory. No downloading, no SD card flashing, no configuration needed. Power on and print.
  3. 32-bit ARM Cortex-M4: STM32F407 at 168MHz with 1MB flash delivers smooth, stutter-free printing even at high speeds with complex models.
  4. TMC2209 silent drivers: 5-axis UART-mode drivers with 256 microsteps for near-silent operation (below 45dB) and precise motion. StallGuard2 and CoolStep included.
  5. Built-in WiFi: 802.11 b/g/n with external antenna for wireless printing, remote monitoring, and OTA firmware updates via QIDI app.
  6. 30-minute drop-in install: Keyed, labeled connectors match the original wiring harness. 4 mounting screws. Phillips #2 screwdriver only. No soldering, no crimping.
  7. 15A MOSFETs: Heavy-duty MOSFETs for hotend and heated bed handle high-current loads without overheating. Thermal shutdown protection included.
  8. Dual extruder ready: 5 stepper drivers (X, Y, Z, E0, E1) support dual extrusion for X-Max and X-Plus dual-head configurations.
  9. Comprehensive protection: Over-voltage, over-current, thermal shutdown, and reverse-polarity fuse protect the board and printer from electrical damage.
  10. Restores full functionality: Fixes no-power, boot loops, unresponsive screens, heater faults, axis failures, and USB/WiFi issues caused by motherboard failure.

Cons

  1. $189.99 is expensive: One of the more expensive 3D printer motherboards on the market. A new X-Plus printer costs ~$600, so the board is 32% of the printer's price. However, it is far cheaper than replacing the entire printer.
  2. 90-day warranty: Short warranty period for a $189.99 component. A 1-year warranty would be more appropriate. The board should last 3-5 years under normal use, but the warranty only covers 3 months.
  3. X-Max / X-Plus only: Not compatible with QIDI i-Fast, X-CF Pro, Q1 Pro, Q2, or other models. Those use different motherboards with different connectors and firmware.
  4. Proprietary firmware: Runs QIDI's closed-source firmware, not open-source Marlin or Klipper. Advanced users cannot customize firmware features or use Klipper firmware without significant modification.
  5. Slow free shipping: 15-25 business days for free standard shipping from China. If your printer is down for business, this is a long wait. Express shipping costs extra (~$40-60).
  6. No third-party alternatives: The QIDI X-Max/X-Plus uses a proprietary board form factor and connector layout. No generic or third-party replacement boards (like BigTreeTech) are directly compatible without custom wiring and firmware.
  7. Requires full disconnection: You must disconnect 10+ connectors (power, motors, heaters, thermistors, fans, endstops, display, USB, WiFi) from the old board and reconnect them to the new one. Beginners may find this intimidating, though all connectors are keyed and labeled.
  8. Does not fix mechanical issues: If the problem is a clogged nozzle, worn belt, bent rail, or failed heater cartridge, a new motherboard will not help. You would need the appropriate replacement part instead.
  9. Static-sensitive: The board is sensitive to electrostatic discharge (ESD). Must be handled with an anti-static wrist strap or by touching a grounded metal surface first. Damaging the board with static voids the warranty.
  10. Firmware cannot be user-updated easily: While the board supports WiFi firmware updates, the process requires the QIDI app and a stable connection. If WiFi fails, updating via USB requires specific drivers and software that are not well-documented.

Installation Overview

Installation takes approximately 30 minutes with a Phillips #2 screwdriver. Full step-by-step instructions are included in the Quick Start Guide. The basic process:

  1. Power off and unplug the printer. Wait 10 minutes for capacitors to discharge.
  2. Remove the electronics cover (4-6 screws) on the back or bottom of the printer.
  3. Take a photo of the original board's wiring for reference.
  4. Disconnect all connectors from the old board — pull by the plastic housing, not by the wires.
  5. Remove the 4 mounting screws and lift out the old board.
  6. Mount the new board and secure with the 4 included M3 screws.
  7. Reconnect all connectors using the reference photo and the labeled connectors on the new board.
  8. Double-check all connections before powering on — especially the power connector (correct polarity) and heater connectors.
  9. Power on — the board boots with pre-flashed QIDI firmware. The touch screen should show the main interface.
  10. Run a test print to verify all axes, heaters, fans, and WiFi function correctly.

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Frequently Asked Questions

What is the QIDI X-Max / X-Plus Motherboard and when do I need it?
The QIDI X-Max / X-Plus Motherboard is a factory-original 32-bit ARM Cortex-M4 replacement mainboard for QIDI X-Max and X-Plus 3D printers, priced at $189.99. It features TMC2209 silent stepper drivers, built-in WiFi, 24V power input, 5-axis control, and pre-flashed QIDI firmware. You need this board when your printer shows: no power or lights, stuck on boot logo (boot loop), unresponsive touch screen, heater fault / thermal runaway errors, axis not moving (failed stepper driver), smoke or burning smell from electronics, USB not recognized, WiFi not connecting, or random reboots during printing. These symptoms indicate motherboard failure that cannot be fixed by resetting or updating firmware. The board is a direct drop-in replacement requiring no soldering or wiring changes.
How do I install the QIDI X-Max / X-Plus Motherboard?
Installation takes 30 minutes with a Phillips #2 screwdriver. Steps: (1) Power off, unplug, wait 10 minutes for capacitors to discharge. (2) Remove the electronics cover (4-6 screws). (3) Take a clear photo of the original board's wiring for reference. (4) Disconnect all connectors by pulling on the plastic housing (not the wires) — there are approximately 10-12 connectors including power, 5 motors, 3 thermistors, 2 heaters, 4 fans, endstops, display, USB, and WiFi. (5) Remove the 4 M3 mounting screws and lift out the old board. (6) Mount the new board and secure with the 4 included screws. (7) Reconnect all connectors using the reference photo — all connectors are keyed and labeled to prevent reverse insertion. (8) Double-check the power connector polarity and all heater connections before powering on. (9) Power on — the board boots with pre-flashed firmware. (10) Run a test print to verify all functions. Handle the board by the edges to avoid static damage.
Is the QIDI X-Max / X-Plus Motherboard compatible with my printer?
This motherboard is compatible with QIDI X-Max (all revisions, including X-Max and X-Max II) and QIDI X-Plus (all revisions). It is NOT compatible with: QIDI i-Fast (uses a different motherboard with dual-extruder-specific wiring), QIDI X-CF Pro (industrial model with different board), QIDI Q1 Pro (different form factor and connectors), QIDI Q2 (different display and board system), or any non-QIDI printers. To verify your model, check the label on the back panel or go to Settings → About on the touch screen. If you are unsure, contact QIDI support with your printer serial number before ordering. Using the wrong motherboard can result in connector mismatch, firmware incompatibility, or potential damage.
Do I need to flash firmware after installing the new motherboard?
No. The QIDI X-Max / X-Plus Motherboard arrives with the latest QIDI proprietary firmware pre-flashed and calibrated at the factory. Simply connect the board and power on — the touch screen will boot to the main interface with all settings pre-configured for your printer model. You do not need to download firmware, flash via SD card, or configure any settings. However, after installation, you should: (1) Re-run auto-bed-leveling (the new board may have slightly different sensor readings). (2) Verify the Z-offset and adjust if needed. (3) Check that WiFi is connected and re-enter your WiFi password if needed. (4) Run a calibration cube to verify dimensional accuracy. No firmware update is required unless QIDI releases a newer version after your board was manufactured.
My printer has no power — is it definitely the motherboard?
Not necessarily. Before replacing the $189.99 motherboard, check these common causes: (1) Power supply failure — the 24V power supply may be dead. Test with a multimeter: you should read 24V DC at the power output terminals. If you read 0V, replace the power supply (~$40-60), not the motherboard. (2) Blown power switch — test continuity across the switch. (3) Loose power cable — try a different power cable and outlet. (4) Tripped circuit breaker or GFCI. (5) Blown fuse on the motherboard — some boards have a user-replaceable fuse. If the power supply outputs 24V correctly but the board shows no lights, the motherboard is likely dead and needs replacement. If the power supply outputs 0V, replace the power supply first (much cheaper).
What is the warranty on the QIDI X-Max / X-Plus Motherboard?
The QIDI X-Max / X-Plus Motherboard comes with a 90-day warranty from the date of delivery. The warranty covers manufacturing defects, component failures, and firmware issues that prevent normal operation. It does not cover: damage from electrostatic discharge (ESD), incorrect wiring or reverse polarity, physical damage (dropped, bent, liquid spilled), power surges from external sources, or attempts to modify or reflash the firmware with non-QIDI software. To make a warranty claim, contact QIDI support with your order number, photos of the board, and a description of the failure. QIDI may require you to return the defective board before shipping a replacement. Under normal use, the motherboard should last 3-5 years (5,000-10,000 print hours).
Can I use a third-party motherboard like BigTreeTech instead?
Technically possible but not recommended for most users. The QIDI X-Max and X-Plus use a proprietary board form factor, connector layout, and touch screen interface. A third-party board like BigTreeTech SKR would require: (1) Custom wiring harness or adapter (the connectors don't match). (2) Custom firmware (Marlin or Klipper) configured for the QIDI's specific pinout, thermistor types, and display. (3) Touch screen may not work (QIDI uses a proprietary display protocol). (4) WiFi functionality would be lost (third-party boards use different WiFi modules). (5) Voiding any remaining warranty. The total cost of a third-party board + adapter + wiring + time would likely exceed the $189.99 OEM board, and the result would be less reliable. For 99% of users, the OEM board is the best choice.
How long does shipping take and what is the return policy?
Free standard shipping from China takes 15-25 business days to the United States (USPS or equivalent carrier). Express shipping is available for an additional $40-60 and takes 5-8 business days. The board ships in anti-static packaging within a sturdy cardboard box. QIDI offers a 30-day return policy: if the board is defective or not as described, you can return it within 30 days of delivery for a full refund or replacement. The buyer is responsible for return shipping costs unless the item is defective. The board must be returned in its original anti-static packaging with all included accessories. Refunds are processed within 5-7 business days of receiving the returned item.
My printer shows a boot loop / stuck on logo — will a new motherboard fix it?
In most cases, yes. A boot loop (stuck on the QIDI logo screen, repeatedly restarting, or never reaching the main interface) is typically caused by: (1) Corrupted firmware on the flash chip — the pre-flashed new board resolves this immediately. (2) Failed flash memory chip — the new board has a fresh, tested chip. (3) Failed processor (STM32) — the new board has a working processor. (4) Power supply instability causing repeated resets — check the power supply first (test 24V output), but if the power supply is good, the motherboard is the cause. (5) Corrupted SD card — try removing the SD card and booting; if it still loops, the motherboard is at fault. If you have already tried reflashing firmware via SD card and the boot loop persists, the motherboard needs replacement.
Is the QIDI X-Max / X-Plus Motherboard worth $189.99?
Yes, for X-Max and X-Plus owners with a confirmed failed motherboard. A new QIDI X-Plus costs ~$600 and X-Max ~$800, so $189.99 to restore full functionality is cost-effective (24-32% of the printer's price). The board includes premium components: STM32F407 32-bit processor, 5x TMC2209 silent drivers, WiFi module, 15A MOSFETs, and pre-flashed firmware — buying these separately would cost $120-150, plus you would need to assemble and configure them. However, before buying, always: (1) Test the power supply with a multimeter (a $40-60 power supply failure mimics motherboard death). (2) Try reflashing firmware via SD card (may fix corrupted firmware for free). (3) Check for loose connectors (a disconnected display cable can mimic a dead board). If these checks confirm motherboard failure, the $189.99 OEM board is the most reliable and fastest solution — it restores your printer in 30 minutes with zero configuration.

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