Before I spend more time debugging this issue I just want to confirm that I’ve recieved the correct board.
The plastic box says
Rock Pi 4 Model A 4Gb (ohne WLAN… and so on)
This issue is that I’ve been trying out several distros they’re all only seeing 1Gb of RAM.
Looking at the board, there are two SK Hynix chips that says
I couldn’t find the exact partnumber but AVNET lists a similar part which would explain why I’m only seeing 1Gb of RAM. https://www.avnet.com/shop/emea/products/hynix/h9hcnnn4kumlhr-nme-3074457345634297783
As far as I can tell the PCB itself doesn’t seem to list amout of memory, just the “base model”.