Andrei POPESCU wrote: > On Lu, 15 mar 21, 17:21:39, Dan Ritter wrote: > > > > At last report: normal desktop Ryzens (nothing with a G suffix > > unless it also has a PRO marking) > > Do you have a reliable source for the lack of ECC support in G suffix > processors? > > And why would it work for PRO processors instead? > > I think it's unlikely AMD has 2 different cores for PRO and non-PRO, > it's more likely it either works for both or neither.
https://www.asrock.com/mb/AMD/X570%20Taichi/index.asp#Specification I'm going to omit a bunch of details: AMD Ryzen series CPUs (Vermeer) support ... ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Matisse) support ... ECC & non-ECC, un-buffered memory* - AMD Ryzen series APUs (Renoir) support ... ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Pinnacle Ridge) support ... ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Picasso) support non-ECC, un-buffered memory* * For Ryzen Series CPUs (Picasso), ECC is only supported with * PRO CPUs. The first APUs are the Raven Ridge, 2200G and 2400G, which aren't even supported on the current motherboards The next are Picassos, 3200G and 3400G, there's an explicit statement that only the PRO versions support ECC. The current ones are Renoir, 4000 series, and I haven't got a reliable source that they are ECC only on the PRO -- but I strongly suspect it. It's not the cores that differ between the PROs and non- -- it's the I/O chiplet. -dsr-
