RTX eGPU USB4 Not Detected on Ryzen 8845HS (Code 45 / ASM246X)
Hey, I really need help with an eGPU USB4 setup 😭
Setup:
- Ryzen 7 8845HS + AMD Radeon 780M iGPU
- NVIDIA RTX in a USB4 eGPU dock
- Windows 11
Problem:
- RTX fans spin normally
- dock is powered and stable
- no more blinking/disconnecting
- BUT Windows still does not detect the RTX under “Display adapters”
At first I had:
- “Unknown device”
- USB4\VID_0000&PID_0000
- error code 45
Things I already tried:
- DDU in safe mode
- reinstalling AMD/NVIDIA drivers
- disabling PCI Express Link State Power Management
- disabling AMD iGPU
- full shutdowns/restarts
- reconnecting everything in different orders
- BIOS checks
- reinstalling PCI/USB devices
Current situation:
- no more “unknown device”
- GPU fans spin continuously
- Device Manager no longer refreshes every 5 sec
- but the RTX still doesn’t appear anywhere
The dock uses an ASM246X controller and runs through USB4.
If anyone has already had this issue or knows a fix, please help 🙏