[SpookyZalost]

Did you actually build that from scratch for the prototype! I love the concept! Curious what kind of VR are you using?

What is the purpose of being able to have external RAM?

well I've been looking to build a new board from scratch because what's on the market is insufficient for my needs, but I do have some ideas for innovation in the process that might make DIY motherboards more accessible to the consumer and not just manufacturers, such as a way to do it solderless.

at the moment I'm running it off a Pi Zero which is insufficient for anything but command line work, I've spent most of the last week studying stuff like DIY arm boards and such.

external ram, well upgrade-ability mostly, if you design your own board, then it stands to reason you can tweak and modify to upgrade indefinitely ya?
though 16gb is good enough for almost anybody who isn't a gamer, and in linux that's overkill. so let's make that a good point to work towards.

as for the CPU... I have a couple ideas, the first is coming up with an ARM processor slot similar to how INTEL and amd and such do their thing, which I'm pretty sure exists? but I'm not 100% on that... the other is a variant of the Compute module raspberry pi came up with, the form factor seems both efficient and easy to setup, with maybe a quad compute module core.
if I were to go with just Pi III compute modules for example and setup 4 of them in tandem along with 16gb of ram and a flash able BIOS dip chip I'd have 12 cores total across 4 cpu's at 1.2ghz per core for a total of 13.6ghz total CPU power, that's actually pretty decent for a portable, with the CPU modules costing about $30 a piece at the moment and setup to go down in price.

I've got a lot of sketches and designs for this and will upload and share as soon as I can get my hands on a scanner.

Compute Module:


Upgradeable Bios chip from back in the day:



anyway that's where I'm at with the design concept, it's still a work in progress but I've a very idea how to get where I want to go, so I'm studying what I need to know to design my own board right now, the case is already designed I just need to have a 3D printer make it.