- Nov 11, 2018
- Asus ProArt Z690-Creator
- RX 6800 XT
- Classic Mac
- Mobile Phone
Hello @Gottgenk,Hello CaseySJ,
Thank you very much for the excellent guides for the Designare Z390! I have been running mine for some while without any issues! I am also using a Samsung LC34J791 display with thunderbolt 3 connection, which is working great!
My QNAP TVS-472XT won't connect using Thunderbolt, since it is using Thunderbolt Networking. So I have been following your investigation in modifying the Thunderbolt firmware. I tried reading my onboard Thunderbolt chip with a RPi 4, but I can't manage to read the chip, not even with your customized schematics.
I did however come across the following website:
Page 2 | Blackmagic Design released a firmware update package for the Blackmagic eGPU/Pro. What interests me the most is that it's for macOS. I downlo...egpu.io
In that tread they have been patching the macOS built in Thunderbolt firmware updater. In this case to update EGPU firmware. But on page two they are discussing that it should also be possible to use it to flash the built in controllers/read built in firmware. Do you think this would be a viable option for a software solution?
I've briefly looked at the egpu.io link, but since I'm most familiar with the external-flasher method, let's see if we can look into that first:
- Can you describe or photograph the circuit you used?
- Are you using a 47uF or 100uF polarized capacitor and connecting the long leg to + and the short leg to -?
- Are you using a 2K Ohm resistor before Pin 3 of the SOIC clip? I've tried 1K and 10K Ohm resistors, but neither of those works. A 2.5K or 5K Ohm resistor may work, but let's stay with 2K Ohm.
- Have you physically pulled the plug from the computer's power supply?
- Are you securely attaching the SOIC clip to the Designare chip before powering on the Raspberry Pi?
- When you power on the Raspberry Pi with the clip connected to Designare, what is the color of the array of LEDs on the back of the motherboard?
- Are the LEDs stable or blinking?
- Have you tried momentarily disconnecting pin 3 with everything else connected, and re-inserting pin 3?