ES Xeon Discussion
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sure its a E3 QS - works on supermicro, currently the most strict vendor in case of stepping support.
Officially the 8470 E0 Q0KG has multiplier 38, and i can see it in cpuz. but i never saw any core go above 3000MHz. It is very strange, even if i do some single thread benchmark.
In HWinfo IA Limit Reasons are all the time on Yes.
The obvious, Turbo Boost is already enabled in the Bios.
Any ideas which settings are related?
In HWinfo IA Limit Reasons are all the time on Yes.
The obvious, Turbo Boost is already enabled in the Bios.
Any ideas which settings are related?
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Perhaps this was already answered previously but what's expected outcome of putting dual 385W CPU into LGA4677 SuperMicro dual-socket MB designed for 350W CPU (assuming I will dial-down frequency/cores via BIOS on a first boot).
For instance there are plenty of Xeons having model number 84XXC ( "c" at the end meaning "Custom" or "Customer" designed for large providers like ECS/AWS/GCP/Alibaba clouds)
Or it is rather a lottery style right now (won't know for sure without trying) ?
Thank you.
For instance there are plenty of Xeons having model number 84XXC ( "c" at the end meaning "Custom" or "Customer" designed for large providers like ECS/AWS/GCP/Alibaba clouds)
Or it is rather a lottery style right now (won't know for sure without trying) ?
Thank you.
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CMOS reset. BIOS to default and check again.
Q0KG TDP = 350W
edit: maybe windows loaded a too new MCU into the CPU, sp HWinfo screenshot(summary) will be helpfull
X13SEI should be compatible with E0 (and all other E steppings), but only up to BIOS v 2.1, which can be downloaded here:
https://www.supermicro.com/support/resources/getfile.php?SoftwareItemID=19712
IIRC, BIOS downgrade on Supermicro boards wasn't straightforward, but possible...
We need to look at these E0 cpus separately
Early E0: Q03J,Q03Y,Q08V...... (Q08*,Q03*)
Late E0: Q0KL,Q0KM,Q0KG...... (Q0K*)
Early E0 does not work on X13SEI/X13DEI unless use debug 1.0 BIOS.
Late E0 should work with any BIOS version and has been tested with 1.1 and 2.1.
BMC WebGUI can upgrade the BIOS to 2.1 or downgrade to 1.1, never blocked official BIOS. But downgrading to unofficial debug BIOS will be blocked.
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
yes, you need BIOS tweak to avoid OS load-freeze: set package C-States to C2 or C0/C1
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.
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.
I don't understand why you so interested in 60 cores CPU, Q0KM/Q0KL is also strong and cheaper, 100% work.
Anyway, these early E0s have not been fully tested. so if you still want to try good luck.
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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That's the most important.
Because old ver. MCU? Full clocks 3.8GHz is crazy, but that's may not possible on supermicro.
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.
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.