Not long ago I stumbled upon the ability to hack apart the Raspberry Pi with its USB 3 chipset to acknowledge a PCIe interface PCIe / PCI Express on the Raspberry Pi 4 B? Apparently So!
New Post: Raspberry Pi 4 PCI Express: It actually works! USB3, SATA… GPUs? https://t.co/k9LxVtNdw2 pic.twitter.com/MdaYQ1wEgs— Colin Riley (@domipheus) August 30, 2019
Welcome to the PCI Express multiplexer.
With the amazing work done to solder onto pads, I'm realising that for my own work I want to get hold of a microscope..
Using 'riser cards' is not a new concept, in the early days of personal computing it was typically setup so that you would have to extend the 'bus' of the computer with breakout boards, I remember on a particularly old 486DX2-66 using a Vesa VL-BUS riser card to be able to insert a very long graphics card. My how far technology has come, but the graphics cards are still pretty long:
This hack is still very much hands-on, it's not for the faint of heart, and people are wondering what functionality will be broken out onto a possible Compute Module 4? Or will we see a socketed version of the chip to help people pick and choose how they want this to function?
One thing's for sure, it entirely depends on software support.