ES Xeon Discussion

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RolloZ170

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Apr 24, 2016
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These are supposedly 8580 ES (Q2SG) but the CPUz show a janky model (Intel?0000)
View attachment 472328580 ES
"0000" is normal for ES (non QS)
for EMR stepping A0 ES you need mod. BIOS to support dual processor.
Q2SG is ES of 8481C OEM model.
i am not sure if the MS73 (specs. max. TDP 2x 270W)supports dual 385W TDP.
PM you now with the BIOS.
 

Bob_R

New Member
Dec 13, 2025
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"0000" is normal for ES (non QS)
for EMR stepping A0 ES you need mod. BIOS to support dual processor.
Q2SG is ES of 8481C OEM model.
i am not sure if the MS73 (specs. max. TDP 2x 270W)supports dual 385W TDP.
PM you now with the BIOS.
Thank you I will give it a shot and report back! I appreciate it!
 

8bits1byte

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Jan 6, 2026
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SPR-SP D0 ES work with Gigabyte up to R12/R17 BIOS (varies with model)
CSI/MRC 114.D30 = work
CSI/MRC 115.D14 = not work

mod. BIOS required in any case for SPR D0 and EMR A0 ES, i have D0 and A0 working on ASRock Rack C741.

later SPR-SP E0 stepping work (but not early E0 like Q03J e.g.)

QS is Retail silicon just with ES bit enabled, work on all motherboards who support the Retail version.
I was looking over the QYFS but one listing says that it hit a bios error “CPU_CATERR” with certain Dell motherboards.
Have you come across any similar issues and is this part of the “lottery” or just these set of samples from this seller?
 
Last edited:

Andrix

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Mar 15, 2025
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"0000" is normal for ES (non QS)
for EMR stepping A0 ES you need mod. BIOS to support dual processor.
Q2SG is ES of 8481C OEM model.
i am not sure if the MS73 (specs. max. TDP 2x 270W)supports dual 385W TDP.
PM you now with the BIOS.
My impression based on what I read is that MS73 can run dual 385W TDP, but an additional heatsink is needed for that. There are sellers on goofish offering it. One of the offers says (auto-translated): "GIGABYTE MS73 MOS tube radiator to solve the problem of high overheating and downgrading repair rate of GIGABYTE's 385W CPU. A set of 200 yuan, including two heat pipe radiators. GIGABYTE MS73 MOS tube radiator solves the problem of high overheating and downgrading rework rate of GIGABYTE's 385W CPU."

There is also a user who mentioned the heatsink in this thread:
Hi guys. I am curious about, that is C741 chipset can be unlocked to supported higher(than 350 watt) or unlimited TDP value? Overclock is not necessary.

The reason why this mind comes up I because of a special CPU with QDF "Q08U". This CPU is a step 4 es, allows all 56core 112 threads runs on up to 3.9GHz. I believe that, if the power supply will fill this beast up, it will bring an incredible performance.

Instead of the MS73 "Best performance-Maximum level" official BIOS configuration, is there are further configuration and/or modifying BIOS(s) could achieve higher/unlimited power supply?

ps: The mos heatsink components (heating management) is been modified, the CPU, power supply is enough. Don't need to worried that : )
 
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Andrix

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Mar 15, 2025
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Each ES Xeon will boot fine when only in CPU0 socket. Same RAM, GPU, everything. The other CPU swapped in socket 0, also fine, both each boot ok.
I saw the same for EMR A0 on dual CPU Gigabyte boards before modding the bios. Anyways, if you don't mind me asking, where did you get it?
 
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Bob_R

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Dec 13, 2025
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I saw the same for EMR A0 on dual CPU Gigabyte boards before modding the bios. Anyways, if you don't mind me asking, where did you get it?
Random Chinese eBay seller. They have like a ton of listing. It's hard to tell though because some are the same people with different accounts and similar listing other are not. I picket the one with the most positive feedback.

The person on the other end has actually been quite responsive and mostly helpful trouble shooting up until this point where I notified both CPU's are not booting and the responses have seemed to have stopped.

This was quite an investment since basically my entire setup revolves around this MoBo and CPU combo. I had to buy a larger case, expensive new power supply, expensive RAM, heatsinks/fan and new cables (SAS 4.0 SFF-8654 4i 38 Pin to SATA) etc..
 
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frogelder

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Aug 8, 2023
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some models are mobo for servers with auto bifurcation enabled.
there are many EPYC motherboard without bifurcation.
edit:
Z13PE
D16 or D32 ?
D16, there is no D32 version. Now I want to change my motherboard to asrock c741 SP2C741D16X-2T, but I dont know if it supports xeon max, because I didn't see max in cpu support list
 

RolloZ170

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Apr 24, 2016
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Isn't it normal for all ES/QS? Only reason I ask is my Q2SR shows up as the same thing (including ES).
QS have full Brand String e.g. "Intel Xeon Platinum 8580..." but es bit set. ( (ES) in CPZ-Z is added by, comes not from inside CPU )
Q2SR is ES2 no QS
 

8bits1byte

New Member
Jan 6, 2026
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SPR-SP D0 ES work with Gigabyte up to R12/R17 BIOS (varies with model)
CSI/MRC 114.D30 = work
CSI/MRC 115.D14 = not work

mod. BIOS required in any case for SPR D0 and EMR A0 ES, i have D0 and A0 working on ASRock Rack C741.

later SPR-SP E0 stepping work (but not early E0 like Q03J e.g.)

QS is Retail silicon just with ES bit enabled, work on all motherboards who support the Retail version.
I saw that you also used the Q30H and Q2Y7 with asrock (EMR A0: Q2SR,Q2SP,Q2Y7,Q2Y8,Q2T7,Q30G,Q30H...)
Besides the boot time issue, has either chip given you issues with asrock c741 or anything locked/disabled?
Seeing as I won’t be able to get the amount of ram I want right away, do you think it is worth locking into EMR over SPR (excluding qs/prod and assuming only es)?

Is there a chance to use the latest bios or are we locked to early/beta bios indefinitely? Coming from AMD ryzen/threadripper many times latest bios fixed something and asrock has beta bios available for EMR or release bios for SPR.

Do you happen to be in the US? Any issues with customs, tariffs or shipping speed compared to eBay purchases? Price is a 3rd from goofish but ebay says imports included and can return (minus shipping and import fees).

Do you have a referral code for superbuy? If you do, share it and I’ll use it.
 

RolloZ170

Well-Known Member
Apr 24, 2016
10,276
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I saw that you also used the Q30H and Q2Y7 with asrock (EMR A0: Q2SR,Q2SP,Q2Y7,Q2Y8,Q2T7,Q30G,Q30H...)
Besides the boot time issue, has either chip given you issues with asrock c741 or anything locked/disabled?
Not that I know of.
Is there a chance to use the latest bios or are we locked to early/beta bios indefinitely?
i can use latest available BIOS for EMR A0 ES
(ASRock Rack does not provide new BIOS often, and if they have, you have to ask/beg for it)
but not SPR D0 ES because Intel CSI/MRC does not support SPR D0 from version 115.D14
Do you happen to be in the US?
no, EU = worst case.
Any issues with customs, tariffs or shipping speed compared to eBay purchases?
value < $150. risky, no returns.
Do you have a referral code for superbuy?
never heared of it, i have subscribed, topped up my balance, and purchased.
once arrived in china warehouse i checked item and submitted parcel.
 
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Ti_EgrDiv

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May 18, 2025
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Hi guys

Did anyone got gigabyte MS33-ARO F04 version BIOS? Or MS03-CE0 F03 version BIOS. There is a slightly tiny little issue when light up a processor.

I went through the log and find out that these two versions have the feature I urgently need.

Anyone have those files?

MUCH APPRECIATED : )