The mainboard we need, but not the one we deserve
/talosii/
PCIe 4.0
CAPI 2.0
up to 1 TiB RAM per socket
POWER9 Sforza scale-out CPU
fully open source firmware:
git.raptorcs.com
CPUs go up to 22 cores, with SMT4 (four threads per core) for a max total of 176 threads.
Low core count chips (4 and 8 core) get double the usual 5 MiB of L3 cache per core.
No silly RGB, just pure POWER
You can get it without the proprietary SAS controller if you so desire
Or with it, since it's isolated with IOMMU groups, there isn't a big risk.
Besides, you are encrypting your hard drives anyway, right?
So is Power9 backwards compatible with most or all instructions of the G4/G5 chips that Apple used to use before 2006? I'm interested in MacOS 9 and OS X Tiger emulation through QEMU. If the hardware is compatible I would be able to just use kernel VM and get insane performance, right? This really arouses my almonds.