Not all OCuLink eGPU docks are created equal
9 hours ago
- #eGPU
- #OCuLink
- #Raspberry Pi
- The Minisforum DEG1 GPU Dock was tested with a Raspberry Pi 500+ using an M.2 to OCuLink adapter and a chenyang SFF-8611 cable.
- Initial setup required turning on the DEG1's power button and adjusting PCB switches (TGX to OFF) to get the GPU to initialize.
- No output was detected from the GPU, and lspci did not recognize the card, despite no errors in dmesg.
- Switching to a JMT eGPU OCuLink dock resolved some issues, but commenters suggested trying the DEG1's included cable, which worked with an RX 6500 XT.
- The DEG1's included OCuLink cable had extra colored wires not present in other cables, indicating not all OCuLink cables are the same.
- The RX 7900 XT and RX 7600 still did not work with the DEG1, while other GPUs like the Intel B580 card functioned properly.
- Forum posts indicate others have successfully used the RX 7900 XT with the DEG1 on a Pi, suggesting possible setup-specific issues.
- The inconsistency with 7000-series AMD GPUs may indicate a different PCIe initialization scheme incompatible with the DEG1 dock.
- Finding the correct OCuLink cable is challenging, as listings often do not specify if they include the extra wires.