ES Xeon Discussion

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RolloZ170

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Apr 24, 2016
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Thanks,and any other motherboard that may boot the hbm xeon?
Any luck to use that hbm ram or absolutely no chance
if yo ufind one you have to live with old BIOS full of bugs(pain) and best case is you get a cpu with worse performance,
lost warranty of motherboard or brick it.
i would say no chance for a usable system.
 

MillionMiles

Active Member
Aug 22, 2023
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afaik, even for SPR-HBM Prod Units, you have to endure some issues (You can only use some of the motherboards/BIOS, OS, LLM inference framework, ...). Intel has abandoned SPR-HBM and no more HBMs, they are too small and not fast enough. And those Pmem 300 also have similar issues.

SPR-D0 is 40% slower than EMR-A0 in llama.cpp CPU backend, and I have audio/DPC issues on Windows. I can't imagine what SPR-HBM-A stepping.
 

sam55todd

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May 11, 2023
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SST (speed step tech) profile for Xeon SPR 8481C ( SRM8H , Google OEM):
Profile : Cores : Base/Nominal frequency
0: 56 cores: 2.0 Ghz
3: 48 cores: 2.2 Ghz
4: 32 cores: 2.7 Ghz
1779711953699.png


Had to replace one of previously bought CPU (got 2 cpus from same ebay seller) with another one (just single CPU from a different ebay seller) because of "Uncorrectable memory component found" error if more than 2 RAM channels were populated on that defective CPU (changed RAM sticks, RAM slots as per MB spec, CPU slots, isopropyl-cleaned CPU contact surface, etc., nothing has helped, another CPU was working with same CPU socket/ram modules, but one always throwing error even in different CPU socket). didn't see the point of having CPU with only 2 RAM slots despite post-failure $300 discount offered since I've enough memory sticks (bought couple of years ago at cheap prices) to fill all slots.
1779712543486.png1779712570231.png

1779712868341.png

Therefore it's always worth running full range of tests with ebay tech purchases (otherwise there's a risk of finding out it is defective after return window is closed).
 
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Andrix

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Mar 15, 2025
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MS73-HB1 officialy supports
  • Dual Intel® Xeon® CPU Max Series
View attachment 48955
Gigabyte must have updated the specs. A few months ago SPR-HBMs were not mentioned in the support list although the microcode was listed in the bios update docs. Also, they raised the officially supported TDP limit from 270W to 350W, which, I guess, allowed them to list more CPUs.
 

gbeirn

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Jun 23, 2016
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I have an Asrock rack SPC621D8 running a QUYS step 4 which is a 6336y equivalent.

Could/would this board support a QWAN or other higher core CPUs.

I see QVLP but I think the 330W is too much for the board.

Is it safe to say if I can run a step 4, I could run a step 5 or 6?

Thanks!
 

RolloZ170

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gbeirn

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Thanks for all the info. I saw sellers advertising the QVLP as 330W which made me pause.

I didn’t realize step 6 was retail lol