has anyone ordered and/or played with this
https://www.cnx-software.com/2023/07/03/orange-pi-zero-3-allwinner-h618-sbc-ships-with-up-to-4gb-ram/
https://liliputing.com/orange-pi-zero-3-is-a-cheap-tiny-single-board-pc-with-up-to-4gb-ram-gigabit-ethernet-and-allwinner-h618/
http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Zero-3.html
even the linux images is very 'fresh' as in that they are just released *yesterday* 😄
@Long-Johnny
1.5gb issue is a *known issue*
The problem is in u-boot, rather to explain it in a simple manner, the DRAM controller in H616/H18 is *undocumented*, so developers has to probe in the dark to try to reverse engineer how it works, it is a 'miracle' that it works today where there is practically *no documentation* about the DRAM controller. The dram chips has registers which encode the size of the dram, but that there is *no way* to access the dram registers because t