ES Xeon Discussion

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myth0homelab

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Nov 10, 2023
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Does anyone know if
ASRock Rack SP2C741D16X-2T EEB Server
works with QYFQ CPUs?
Also, does anyone have a 2 socket motherboard that does work with QYFQ for sale?
 

scouzi

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Jan 8, 2024
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with QS or stepping E/S ES(E0-E5,S0-S3) you can choose any motherboard.
but cheap SPR-SP D0 ES2 run only on Gigabyte (confirmed with latest BIOS R01) and ASUS W790.
Can one run a Saphire Rapids Xeon E Socket on a 'W' Workstation MB? I'm eyeing a 8490H (KYFX D0) but the GIGABYTE MS33-AR0 PCIE slot design sucks for stacking long format Videocards such as ASUS W790? Downside I see from their KYFX D0 is that the base clock is 1.7 vs 1.9 GHz but I can live with that). Turbo boost is also a bit lower. I can live with a lower TDP and single core performance hit.
 
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RolloZ170

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I'm eyeing a 8490H (KYFX D0) but the Gigabyte PCIE slot design sucks for stacking long format Videocards.
stepping D0 SPR-SP (like QYFX,QYFQ,QYFP,QYFU,QYFV, and many more) are running on actual BIOS on ASUS W790 Ace and SAGE SE.
this is very wierd because stepping E0 and up are not working.
but SPR-SP have only 80 PCIe lanes, on the W790 SAGE SE you need Xeon W?34xx w. 112L to have all slots working,
with onyl 80lanes you will not have 2x M.2 from CPU. check the manual for that(Xeon W?24xx config)
 

scouzi

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Jan 8, 2024
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RolloZ170

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Anyone know if we can run E sockets on ASUS Pro WS W790-ACE?
EMR (Emerald Rapids) ??? needs a new BIOS to support EMR cpuid and microcode,
unless there is no EMR-WS this will not happen and even if i doubt that because
the reason of support of SPR-SP D0 stepping is absolutely unclear to me.
 

MillionMiles

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Aug 22, 2023
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SPR-E0 looks good, their microcode is the same as the prod unit, does that mean they work on any c741? And get long-term microcode updates from intel? It seems to be expected that they will work similarly to the prod unit, like the ICX-D0

XCC SPR-D0 seems to have performance issue, especially in a dual socket configuration(GIGABYTE MS73), and it is unclear whether there has been any improvement in Windows 11

Dual D0 QYFS 112c CB-R23 76000
Dual E0 Q0KL 104c CB-R23 92000
 
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RolloZ170

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SPR-E0 looks good, their microcode is the same as the prod unit, does that mean they work on any c741?
they should work in theory....
E0 is one of the PRD cpuid and is currently shared over all E steppings.
but this can be ending if the E0 is removed from the MC container.
XCC SPR-D0 seems to have performance issue, especially in a dual socket configuration(GIGABYTE MS73), and it is unclear whether there has been any improvement in Windows 11

Dual D0 QYFS 112c CB-R23 76000
Dual E0 Q0KL 104c CB-R23 92000
have you made this yourself on same motherboard ?
can be just a misconfig. because single QYFS does 67000pts cbr23
 
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RolloZ170

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I don't think this will change after the prod unit is released
easy doable. the container supports
806F4 E0 can be removed, no issue at prod.units.
806F5 E2
806F6 E3
806F7 E4 final PRD(MCC)
806F8 E5 final PRD(XCC/MCC)
edit:
the container can be replaced by single microcodes, one for each cpuid.
and there is more than microcodes, each cpuid is suported by one or two(XCC/MCC) config ffs module.
 
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scouzi

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Jan 8, 2024
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EMR (Emerald Rapids) ??? needs a new BIOS to support EMR cpuid and microcode,
unless there is no EMR-WS this will not happen and even if i doubt that because
the reason of support of SPR-SP D0 stepping is absolutely unclear to me.
I'm not sure I want to go down this rabbit hole especially with an ES processor. I might just bite the bullet and go for a Processor and MB bundle from the same seller. At least I have one throat to choke (but one far away!).
 

scouzi

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Jan 8, 2024
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stepping D0 SPR-SP (like QYFX,QYFQ,QYFP,QYFU,QYFV, and many more) are running on actual BIOS on ASUS W790 Ace and SAGE SE.
this is very wierd because stepping E0 and up are not working.
but SPR-SP have only 80 PCIe lanes, on the W790 SAGE SE you need Xeon W?34xx w. 112L to have all slots working,
with onyl 80lanes you will not have 2x M.2 from CPU. check the manual for that(Xeon W?24xx config)
Thanks - KYFX was a typo on my part. It is indeed QYFX. May I ask what SPR-SP stands for?
 

scouzi

Member
Jan 8, 2024
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stepping D0 SPR-SP (like QYFX,QYFQ,QYFP,QYFU,QYFV, and many more) are running on actual BIOS on ASUS W790 Ace and SAGE SE.
this is very wierd because stepping E0 and up are not working.
but SPR-SP have only 80 PCIe lanes, on the W790 SAGE SE you need Xeon W?34xx w. 112L to have all slots working,
with onyl 80lanes you will not have 2x M.2 from CPU. check the manual for that(Xeon W?24xx config)
Thanks a lot for answering RolloZ170. If I decide to go down the W790 slippery slope, are these ES 8490H locked? Can I OC them somehow? Clock multiplier, base clock, voltage etc
 

RolloZ170

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Apr 24, 2016
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If I decide to go down the W790 slippery slope, are these ES 8490H locked? Can I OC them somehow? Clock multiplier, base clock, voltage etc
this is intel not AMD. WS(X) are unlocked not the -SP ones...but well on the ASUS you can rise the BCLK.
with old GPU up to 109mhz, new modern GPU like 3090 do not work, no picture at 103mhz and higher.
 

bigwomp

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Jan 9, 2024
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choose E-stepping ES and you can buy any motherboard you want.
8470 ES Q0KL stepping E0 2.1Ghz 52cores.
when you say any motherboard, do you actually mean any board that is C741 chipset? Can it be any brand like Gigabyte, ASRock, Asus etc? Would it work with Asus W790 WS?
 

bigwomp

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Jan 9, 2024
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no. SPR-SP D0 works on ASUS but who knows how long ( or live with old BIOS then )


I see, i like the Asus Pro WS W790-ACE because i thought of buying a xeon platinum ES 8470 Q0KL E0 stepping for it. Not sure if that combination will work or not.