ES Xeon Discussion

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RolloZ170

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Apr 24, 2016
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What is your source?
I only found this post, which was the foundation for my claim: https://forums.servethehome.com/ind...phire-rapids-sp-es-works-it.41306/post-419746
indeed, at the time i wrote this i never realised there where differences in behave of E0 stepping processors.
Q0K* E0 work on ASRockRack C741 board, but Q03J E0 not.
but Q03J E0 work on ASUS W790, should not because its SPR-SP.
we know stepping D0 ES are working on ASUS W790 board, so something in late D0 and early E0 is same.
 
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RolloZ170

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IIRC, BIOS downgrade on Supermicro boards wasn't straightforward, but possible...
depends on the type of FW.
Root of Trust (RoT) only accepts BIOS signed with production cert/key. Test/Debug BIOS ( TESsd, STDsd) is not accepted and if flashed by SPI programmer restored by RoT system before POST.

not Root of Trust X1*SRA/X1*SWA BIOS can be modded as you want, some must be flashed with clamp and SPI programmer.
 

DHamov

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Jan 12, 2024
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I don't understand why you so interested in 60 cores CPU, Q0KM/Q0KL is also strong and cheaper, 100% work.
Well i get your point but 8490H E0 (official price 20k) will maybe have better reselling value than 8470 (official price 10k or so). And maybe if you are lucky some of the accelerators and fancy stuff is working. 60 cores 15% better than 52 cores. 3.5GHz 9% worse than 3.8GHz. That were my thoughts at the time. Price difference on ebay was minimal. For me Q03J negotiation was possible on ebay but for Q0KG not. But yes it is a risk. Higher clocks often more usefull than more cores (speaks for Q0KM). User Civiloid seems very happy with his Q03J. But yes that is on a confirmed board.

Slowly seem to be getting my Q0KG working with full clocks 3.8GHz now with old bios.
Be carefull Q0KL is 8470Q and has lower thermal limits especially for watercooling. Maybe with air-cooling you will hit the limits earlier, and loose some boost.
That was reason why i picked Q0KG instead. Q0KM is interesting, but hard to find in ebay.
 
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MillionMiles

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Aug 22, 2023
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Well i get your point but 8490H E0 (official price 20k) will maybe have better reselling value than 8470
this is the ES, the accelerator and the UPI is different from prod. unit, we never confirmed Q03J could work normally 4 or 8 way. And don't expect E0's accelerator will work good. it's just a 60 core E0 CPU, far from 8490H. also Q0KG/Q0KL is just a 52core E0 cpu but can work with all C741 board.
 
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DHamov

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Because old ver. MCU? Full clocks 3.8GHz is crazy, but that's may not possible on supermicro.
Not all cores 3.8. But before no one core went over 3.0GHz, just never, not even with single thread benchmark. In HWinfor history max clockspeed history was 3.0GHz, never anything over it. Tried many bios settings, did not get it to work. But with other bios 1.02, and cmos reset, i get it working normally, but of course only 3.8GHz if other cores not active. Still have to try if disabling half of cores gives 3.8 on 26 cores. Maybe tonight or tomorrow.
After i got it working normally Q0KG is quite good, 65K CB R23. And also silent noctual 140mm on 1000 rpm. Still need to make some better cooling for the vrm heatsink and ram. Memory gets very hot under load.
 
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DHamov

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Maybe BCLK oc unlocked?
On Asus w790 i am quite confident you can change BCLK for that cpu. But how much depends on the silicon lottery, and if you want to run it with a gpu or not. On the forum heared of factors 102-104. In my opinion not really worth it. Especially since 13 and 14 gen intels (with the same/similar cores) are in the news for getting unstable when high PL settings are used. Now Mainboard manufacturers should offer intel profile, with nominal (lower) thermal settings, reducing performance. See for example the link here or here.
 

RolloZ170

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Apr 24, 2016
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Okay.
Thank you.
Maybe BCLK oc unlocked?
yes on ASUS W790, but your GPU is the funblocker. some don't work above 103mhz.
i got 109mhz with ASUS W790 Ace & GT630 and QYFQ (TDP270W - turbo 3300mhz)
but you will not get 109 with a CPU 350W - and turbo 4000mhz
 

RolloZ170

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Apr 24, 2016
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Especially since 13 and 14 gen intels (with the same cores) are in the news for getting unstable when high PL settings are used
you can not realy compare this with SPR. above 5ghz you can think about.

gen 13,14 8P-cores 253Watts
vs
SPR 48 P-cores 350W
 

arabus

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Apr 22, 2024
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On Asus w790 i am quite confident you can change BCLK for that cpu. But how much depends on the silicon lottery, and if you want to run it with a gpu or not. On the forum heared of factors 102-104. In my opinion not really worth it. Especially since 13 and 14 gen intels (with the same/similar cores) are in the news for getting unstable when high PL settings are used. Now Mainboard manufacturers should offer intel profile, with nominal (lower) thermal settings, reducing performance. See for example the link here or here.
I have 14900KF without problem.
135467_huoytecafpttpcln_screenshot_2024-02-02_065815.jpg135467_rv1p56jp4ix4rahu_pyprime_2b_6_935.jpg
 

DHamov

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Jan 12, 2024
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Some testing with Q0KG 8470 E0, on Asrock Rack SP2C741D16X
gpgpu_q0kg_bios102Over38.pngcachemem_q0kg_after_other.pngpassmark_memory_q0kg.png
I know these are not the best memory test. More will follow later one day.
These were the best settings that i could find. As Million Miles Mentioned near 250GB/s. But i did not quite manage to get there. This is 1 cpu 8x32GB 2Rx8 memory.
However some ebay sellers on Gigabyte MS73 Did better (more than double) see the screenshot below. I dont know if it is the mainboard difference. Or maybe Single Rank vs Dual Rank difference. Another factor could be that this was on windows 11 Home (to go) that only supports 128gb, so i dont know in what way they block the other 128gb.
1714590054577.png
 
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