NBFC-Linux config for the Tongfang X6RP57TW chassis (AIstone rebrand), a 2025–2026 gaming laptop.

Hardware:

• CPU: Intel Core i9-14900HX (32 threads)
• GPU: NVIDIA GeForce RTX 5070 Ti Laptop GPU (open kernel modules)
• BIOS: Tested in dGPU-only mode

Key registers (reverse-engineered via live EC RAM dumps):

• Fan duty read/write: 0x60 (96 decimal)
• Primary temperature sensor: 0x30 (48 decimal, coretemp package average)

Features:

• Fully temperature-based automatic control (no fixed speed)
• Curve: quiet at idle (0–20% below 45°C), ramps aggressively to 100% at 90°C
• Safe critical temperature: 95°C
• Initial boot fan duty: 30% (quiet)

Tested on:

• CachyOS (Arch-based)
• Kernel: 6.19.8-1-cachyos
• nbfc-linux version 0.4.0
• Works with open NVIDIA modules and dGPU-only BIOS setting

EC register change evidence:
Fan duty (0x60) clearly scales with temperature and manual set commands:

• Idle/light: ~0x00–0x43 → low %
• Heavy load: ~0xC8 → high %
• Forced 70–100%: consistent scaling to 0x57–0xC8 range

Happy to adjust the curve or add more details if needed.

Thanks for reviewing!