IMHO, going for D0 is not a good idea, unless you really want to use W790 motherboard (only D0 ES works there).
Otherwise - either go for SPR E0 stepping (they tend to be sold for similar price to D0) or maybe even EMR A0
ES Xeon Discussion
- Thread starter britinpdx
- Start date
Notice: Page may contain affiliate links for which we may earn a small commission through services like Amazon Affiliates or Skimlinks.
Otherwise - either go for SPR E0 stepping (they tend to be sold for similar price to D0) or maybe even EMR A0
Somebody was mentioning that, but I never got mine to boot. I have early E0 60 core and asus w790 sage mb. I can probably assemble a small test bench and check at which code it got stuck for me...
Interesting. My Q03J never POSTed on my w790 sage. Though bios for sure was newer than 0215.
I found information about the QYFR QYFS CPU.
Everything works fine, and the tests run without any problems.
I'm looking for an ES/QS Xeon 6 (LGA 4710) CPU that will work on an ASRock Rack GNRD8-2L2T motherboard with no major issues like missing memory channels or PCIe lanes. Reduced performance and a few bugs typical of ES CPUs are okay with me. I've come across Q3J1, Q4G9, Q462, Q4GN. Will any of these work or are there recommended ones out there? Thank you!
Q5LS ( 6741P B1 48C 136L 350W )
except ice lake this is only a question of quality, not type.
these A2 run up to BIOS 1.15 on GNRD8-2L2T (PM me for older BIOS)
Q462 80c
Q463 64c (have 2x at home)
Q4GN 48c
avoid A0/A1 like Q3xx
Last edited:
This Q4G9 on Alibaba looks interesting! Of course, the pictures don't match the description 
Here's a Q4G9 on eBay. How can I learn if this is 88 lanes or 136?
EDIT: It looks like it might be 6747P which is 88 lanes.
Here's a Q4G9 on eBay. How can I learn if this is 88 lanes or 136? EDIT: It looks like it might be 6747P which is 88 lanes.
buy it. no risk at that price.This Q4G9 on Alibaba looks interesting! Of course, the pictures don't match the description
EDIT: It looks like it might be 6747P which is 88 lanes.
Q4G9 should be 6740P = 88 lanes
EDIT: Covered previously over here.
I came across this interesting looking CPU: Xeon W-3375 ES. It is LGA 4189 based QX97. Is this D0 stepping and more broadly compatible?
I came across this interesting looking CPU: Xeon W-3375 ES. It is LGA 4189 based QX97. Is this D0 stepping and more broadly compatible?
A good option.
I have the same LGA 4189 socket.
But for some reason, the price has gone up a lot recently.
It would depend on what else you would get. On a plus side for SPR-ES - AVX-512, some sort of AMX (might be buggy though, as there is no changelog for ES steppings available) and faster RAM if you can afford 8 channel DDR5 RDIMMs.
On the plus side for Epyc - 128 PCIe lanes (Gen4 though, not Gen5, but depends on if you even plan to use any accelerators) and still cheaper DDR4. Though LLM inference on CPU only is in general not a very good idea.
I think you're confusing it with Sapphire Rapids. The QX97 I'm referring to is Ice Lake, LGA4189, DDR4, no AMX.
Well, I've been using Epyc for a few years. The lanes are nice, but the boards are getting ridiculously expensive.
You're technically right, but you're assuming CPU only. If you have enough GPUs/VRAM to hold the non-MLP bits (attention layers, KV cache, router, etc), CPUs can be a very economic way for getting decent performance in very large models, even more so now with MTP and DFlash.
Hey, I have managed to turn on PCIe bifurcation for the z13pe-d16, and the process should be similar for other boards. I will be publishing a repo with a nice utility for this probably sometime this week that can set bifurcation settings in linux, and possibly unhide the Asus R&D Menu (not quite working yet)
Nice job ! I thought enabing bifurcation in BIOS should migrate some modules from another BIOS because I didnt find relative strings in it.