Asus ROG Zephyrus G14 GA402XY Motherboard 90NR0BJ0-R00010 AMD Ryzen 9 7940HS 16GB RAM System Board

90NR0BJ0-R00010 Asus R9-7940HS RTX 4090 16GB ROG Zephyrus G14 Motherboard Tested

Restore peak flagship gaming performance with this ultra-high-end laptop system board pulled from a clean working environment. Official Asus ROG Zephyrus G14 (GA402XY) replacement motherboard featuring an integrated AMD Ryzen 9 7940HS processor and a dedicated NVIDIA GeForce RTX 4090 graphics processor with 16GB GDDR6 VRAM. Thoroughly bench-tested to verify POST execution, onboard memory channel recognition, PCIe M.2 storage detection, GPU stability under load, port array functionality, and clean BIOS operation.

ITEM SPECIFICATIONS: 

Brand: Asus 

Main Part Number (MPN): 90NR0BJ0-R00010 (Compatible with GA402XY series)

Processor (CPU): AMD Ryzen 9 7940HS (8-Core / 16-Thread Zen 4 Architecture)

Graphics (GPU): NVIDIA GeForce RTX 4090 Laptop GPU with 16GB GDDR6 VRAM

Memory Architecture: Onboard 16GB DDR5 RAM configuration with expansion slot 

Component Type: Laptop System Board / Mainboard Assembly

KEY FEATURES & HIGHLIGHTS:

• Extreme-performance compact architecture combining Zen 4 multi-threading capability with enthusiast-grade RTX 4090 mobile graphics. 

• 16GB of dedicated GDDR6 VRAM handles hyper-realistic ray tracing, heavy 3D asset rendering, and intense gaming titles. 

• Factory BGA micro-solder integrity verified with unblemished thermal transfer surfaces ready for heatsink installation. 

• Direct drop-in OEM repair solution for resolving severe logic board failures, shorted power delivery circuits, or GPU damage on ROG Zephyrus G14 units.

WHAT IS INCLUDED:

(1) Asus System Board with AMD Ryzen 9 7940HS and RTX 4090 16GB (MPN: 90NR0BJ0-R00010)

QUALITY ASSURANCE & SHIPPING: 

Tested: Comprehensive diagnostic bench testing completed. Verified successful boot sequence, full CPU/GPU stress benchmark execution, all USB-C/USB4/HDMI I/O ports, audio subsystems, and clean stock BIOS with no passwords or locks. 

Packaging: Encased in protective anti-static ESD shielding bag, cushioned with multi-layer heavy-duty bubble wrap, and shipped securely in a reinforced rigid box requiring direct signature confirmation upon delivery.

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🚚 Shipping

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Ships from the USA, usually within 1 business day.
🛡️ Warranty & Returns

60-day free return/refund policy for all products (U.S. orders only).
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📸 Item Pictures
Pictures are for illustrative purposes only. The part pictured may not exactly match what you receive due to restocking. Compatibility info is provided as a courtesy and does not constitute a warranty. Always verify the part before ordering.