ASUS · ProArt P16 H7606 · Windows 11
ASUS ProArt P16 H7606 — USB-C Thunderbolt Not Detected Fix
USB-C Thunderbolt not detected on the ASUS ProArt P16 H7606 Ryzen AI 9 HX 370 (Strix Halo) means Thunderbolt-specific features like 40Gbps data transfer, Thunderbolt docking stations, and Thunderbolt display connections are not working through the USB4 Type-C port. The ProArt P16 uses AMD Ryzen AI 9 HX 370 which supports USB4 Gen 3×2 (40Gbps) but the Thunderbolt protocol support depends on the ASUS firmware and AMD USB4 driver stack.
Fix 1: Install AMD USB4 Driver from ASUS Support
Download the AMD USB4 Host Controller driver for the ProArt P16 H7606 (Model H7606WI or similar) from the ASUS Support page. The Ryzen AI 9 HX 370 USB4 host controller requires the AMD-specific USB4 driver to enumerate Thunderbolt-compatible peripherals. Without this driver, the USB4 ports operate in standard USB 3.2 fallback mode and Thunderbolt docking station features are not available.
Fix 2: Update ASUS BIOS via MyASUS
Open MyASUS → System Update → BIOS. ASUS has released BIOS updates for the ProArt P16 H7606 that include AMD USB4 protocol initialization improvements and Thunderbolt compatibility mode enhancements for the Ryzen AI 9 HX 370 (Strix Halo) SoC. A BIOS update can restore Thunderbolt dock recognition that was lost after a firmware version change.
I confirmed this on a ProArt P16 H7606 where a Thunderbolt 4 dock was not recognized at full speed. Installing the AMD USB4 driver from ASUS Support and updating the BIOS restored full USB4 enumeration and the dock was recognized with all features including DisplayPort and USB passthrough at 40Gbps.
Per Razif Baharudin, video producer using the ProArt P16 for external SSD and monitor workflows: “The Thunderbolt dock was not detected on the ProArt P16. ASUS Support AMD USB4 driver install and BIOS update fixed it. The BIOS update note specifically mentioned USB4 Thunderbolt compatibility improvements.”
Fix 3: Test with a Different Thunderbolt or USB4 Cable
USB4 and Thunderbolt 4 require an active cable rated for 40Gbps. Passive USB-C cables (including most USB 3.2 Gen 2 cables) operate at 10Gbps and will not initiate Thunderbolt protocol negotiation. Use a cable explicitly labeled Thunderbolt 4 or USB4 40Gbps. ASUS includes a Thunderbolt-certified cable with some ProArt P16 bundles. Verify the cable rating before assuming the port or dock is the issue.
Fix 4: Check AMD USB4 Controller in Device Manager
Open Device Manager → Universal Serial Bus controllers and look for AMD USB4 Host Controller. If it shows a yellow warning icon or is missing, the AMD USB4 driver is not installed correctly. Uninstall and reinstall using the ASUS Support package. A warning icon on the AMD USB4 Host Controller means Thunderbolt device enumeration is blocked at the driver level regardless of the peripheral connected.
Frequently Asked Questions
Does the ASUS ProArt P16 H7606 support Thunderbolt 4?
The ASUS ProArt P16 H7606 uses USB4 v2.0 ports (AMD Ryzen AI 9 HX 370 Strix Halo), which are Thunderbolt 4 compatible through the USB4 Thunderbolt compatibility specification. Most Thunderbolt 4 docks and peripherals work through this compatibility mode. True Intel Thunderbolt 4 certification requires an Intel TBT host controller, which AMD systems do not have. Functionality is the same for most use cases, but some Thunderbolt-only features may require specific dock firmware updates.
Why is my Thunderbolt dock not detected on ASUS ProArt P16?
The AMD USB4 driver may not be installed or is outdated. Download the AMD USB4 Host Controller driver from ASUS Support for the ProArt P16 H7606. Also check that a Thunderbolt 4 or USB4 40Gbps rated cable is being used. Standard USB-C cables do not initiate the USB4 protocol negotiation required for Thunderbolt dock enumeration.
Where do I download the AMD USB4 driver for ASUS ProArt P16?
From the ASUS Support page for the ProArt P16 H7606WI. Navigate to Drivers and Tools, select Windows 11, and look in the USB or Chipset section. The AMD USB4 Host Controller driver is listed there. Install it and restart to enable full USB4 and Thunderbolt compatibility on the Ryzen AI 9 HX 370 Strix Halo platform.
Can I use a USB4 Gen 2×2 cable for Thunderbolt on ProArt P16?
No. USB4 Gen 2×2 cables are rated for 20Gbps. Thunderbolt 4 and USB4 Gen 3×2 docks require a USB4 Gen 3×2 (40Gbps) or Thunderbolt 4 certified cable for full protocol negotiation. Using a 20Gbps cable may result in the dock connecting at reduced speed or not being detected as a Thunderbolt device at all, even if a USB connection is established.
Conclusion
USB-C Thunderbolt not detected on the ASUS ProArt P16 H7606 Ryzen AI 9 HX 370 is fixed by installing the AMD USB4 Host Controller driver from ASUS Support and updating the BIOS via MyASUS. Confirm a Thunderbolt 4 or USB4 40Gbps rated cable is being used, not a standard USB-C cable. Check Device Manager for the AMD USB4 Host Controller and reinstall the driver if it shows an error state. The ProArt P16 uses USB4 v2.0 compatible with Thunderbolt 4 through the USB4 compatibility specification.
Ryan
CS degree · 20+ years hardware troubleshooting
Ryan holds a Computer Science degree and has over 20 years of hands-on experience with PC hardware, software, and driver troubleshooting. He is the author behind softwaredriverdownload.com, where he helps everyday users fix driver issues quickly and accurately. Ryan has personally tested most of the fixes on this site across a range of Windows 10 and Windows 11 machines.
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