ES Xeon Discussion

RolloZ170

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Apr 24, 2016
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If anyone knows how to mod the 3.0 bios (and if it just adding microcode) or have a modded bios from seller, please share.
the bios 3.0a includes the following microcodes.
50654
50655
50656
50657 (50652 in modded bios)
what i know is that the microcode 50657(CLX stepping B1) is replaced by 50652 (SKL ES2 stepping B0) in bios 3.0a
because there is not enough space for 5 microcodes
 
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Fray Mad

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Aug 19, 2020
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Madrid, España.
Whatever available, I want to know what was changed in bios image.




Hope you did not burn it, wish you luck :cool:
I don't know if the plate is fried but no way it works with a Xeon JQW0.

I hope the MB designers think of dummies like me and put diodes in the connectors to prevent these errors.
 

coilfenix

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Nov 3, 2020
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Hello, I bought 2 xeon e5-2699 v4 ES QHUP 2.1 processors:
C516A678 (E4)
L516C108 (E4)

Due to incompetence, I thought it would work on Dell R630, but it gives a bios error:
Broadwell A0 / A1 stepping CPU not supported. Please replace CPU.

Is it realistic to make them work on this server, please tell me.

Sorry for my bad english, I don't know this language.
 

coilfenix

New Member
Nov 3, 2020
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You could try to downgrade the BIOS. I doubt it will work though A0 steppings were unstable typically.
I looked at a screenshot of one of the buyers with CPU-z. It is written there: Model F, Ext. Model 4f, Stepping 0, Revision B0. Maybe this information can help me?
 

RolloZ170

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Apr 24, 2016
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Hello, I bought 2 xeon e5-2699 v4 ES QHUP 2.1 processors:
C516A678 (E4)
L516C108 (E4)

Due to incompetence, I thought it would work on Dell R630, but it gives a bios error:
Broadwell A0 / A1 stepping CPU not supported. Please replace CPU.

Is it realistic to make them work on this server, please tell me.

Sorry for my bad english, I don't know this language.
it is allways critical to get ES to work on branded servers/motherboards.
Supermicro, ASRock works. And normaly they are stable, even bad production unit can be unstable.
you may make them work, but note there are NO microcode updates for vulnerabilities like spectre/meltdown.
 
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RolloZ170

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Apr 24, 2016
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Hello, I bought 2 xeon e5-2699 v4 ES QHUP 2.1 processors:
Due to incompetence, I thought it would work on Dell R630, but it gives a bios error:
Broadwell A0 / A1 stepping CPU not supported. Please replace CPU.
Is it realistic to make them work on this server, please tell me.
Sorry for my bad english, I don't know this language.
to the best of my knowledge the QHUP(stepping A1) do NOT work in pair, only as single cpu. but i may wrong.
edit:
ok, looks like i was wrong. found some screenshots with two QHUP on X10DAi & X10DAL motherboards.
 
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Peanuthead

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I'm not going to go off just a screenshot as it's that - a screenshot. If your system thinks they are A0 stepping then that's the reality that needs to be worked in. As posted above, you can try one and CPU if that helps. Or you can try swapping them in sockets. If they don't work in pairs for you then they don't work in pairs. A prior version of the BIOS may work but no guarantees are made.
 
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RolloZ170

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I'm not going to go off just a screenshot as it's that - a screenshot. If your system thinks they are A0 stepping then that's the reality that needs to be worked in. As posted above, you can try one and CPU if that helps. Or you can try swapping them in sockets. If they don't work in pairs for you then they don't work in pairs. A prior version of the BIOS may work but no guarantees are made.
the Dell reports: Broadwell A0 / A1 stepping CPU not supported
QHUP
 
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Vit K

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Feb 23, 2017
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Btw I found that string in latest BIOS version (2.10.5) but it is not present in first V4 supported version (2.0.1), you might try it. Theoretically you can trace and neuter code that check for the stepping, but firmware might be signed and of course you need to know what exactly you do.

e.PNG
 

RolloZ170

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Apr 24, 2016
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Btw I found that string in latest BIOS version (2.10.5) but it is not present in first V4 supported version (2.0.1), you might try it. Theoretically you can trace and neuter code that check for the stepping, but firmware might be signed and of course you need to know what exactly you do.

View attachment 16280
coilfenix owns a Dell R630,not R730.
can you search for the microcode 406F0 ?
 

sL1pKn07

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Jan 11, 2018
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Hi, i have a Asus Z10PE-D8 bios 3501 with dual E5-2650-V4 ES QHV6

anyone update the bios to 4101? is lost the support for the ES processors?

greetings
 

RolloZ170

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Apr 24, 2016
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Hi, i have a Asus Z10PE-D8 bios 3501 with dual E5-2650-V4 ES QHV6
anyone update the bios to 4101? is lost the support for the ES processors?
greetings
i can not test that because i don't have that board,
but i checked the file, the microcode 406F0 is still there.
for what reason do you want to update the bios ?
the microcodes for ES are NOT updated by intel.
 

sL1pKn07

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Jan 11, 2018
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because IDK if Asus retired the ES support in the actual bios due the Spectre/meltdown flaw (is never fixed in ES processors)
 

RolloZ170

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because IDK if Asus retired the ES support in the actual bios due the Spectre/meltdown flaw (is never fixed in ES processors)
as i say'd, the microcodes for haswell-ep ES and broadwell-EP ES are still there but still the old ones(there are no new)