How do I power an M.2 external GPU properly?

[thekingofmonks]

Hi, I was wondering what the best way to power my M.2 eGPU would be.

 

The card used is an RX 6600 with 8-pin power.

I have gotten it to work but it sometimes booted to a code 43 in Windows. I also want to avoid power-related problems, hence why I am seeking advice.

(I did find that booting AFTER initialising the video card resulted in less code 43s)

 

This adapter board (from JHH) has the following connectors:

• 24-pin ATX input
• 4-pin EPS (CPU) input
• Dell Proprietary 8-pin connector (idk what this is, can't find anything on Google)
• DC 12V--10A input (for a laptop AC adapter capable of 12V)
• 8-pin PCIe output (intended to power the video card through the adapter rather than directly from the PSU, in case the PSU has no PCIe power despite 12V rail being sufficient)
• An M.2 ribbon cable
• A PCIe slot

I've been using it with the CPU 4-pin connected to the board and with PCIe 8-pin directly to the card. The PSU is shorted (green wire) to power on when the switch is flipped.

Back when I bought the adapter, I powered it with the 24-pin at first but the laptop didn't POST, so I changed to this 4-pin config and stuck to it. I haven't tried the 24-pin since.

 

What configuration do you guys recommend?