How do you know CBS Disabled on the BIOS you found?
Have you emailed them and asked to enable for you, sometimes they might send out special BIOS at customer request

It's removed in the pictures from the newer manuals (with newer build date), you can see the Build Date and the upper row without the CBS menu. Also no server board manufacturer in their right mind would ship a mainboard with full blown overclocking options to the end consumer :P

I can try it but i highly doubt that i'll get an answer. The last time i wrote them about a BIOS for an older H8DGG Board i never got anything back.



Edit:
I found a early Bios from a Gigabyte MZ31-AR0 with a "halfway" unlocked CBS Menu, the setup layout is pretty similar. Could this be somehow helpful?

I wonder why they wouldn't want best possible user experience for their servers, it's biggest market segment and you know aside from stability server user would want to push performance some when possible.
No, Gigabyte BIOS will be no help, it's in your BIOS just turned off/skipped at assembly coding level. I think that's why when I unsuppress any option in CBS menu it causes a fail due to the menu not being enabled causes the continued processing of the rest of the code to breakdown and loose it's mind Just a guess

Although, maybe they have some security check, like a signature etc causing anything outside of NVRAM edited to cause a failed boot. Please test this, unsuppressed something in Setup module itself.

Did you see my edit on page one, about the BIOS image request? Pausing on the above test, to see that image, then I will make single edit to setup module and see if it's a fail too, if so they may have some security in place like signature check etc.

Because of warranty issues i guess...

Heres what my standard Bios menu looks like, the Chipset option is missing for example.

I also noticed that i need a earlier Bios version, any other version results in an instant crash under heavy CPU load.
This one works
https://www.mediafire.com/file/1ydugnang...L8.108.rom/file

Yes, I suppose that is a good "Lame" excuse Thanks for the image. Yes, I see chipset is suppressed right at the beginning of the setup IFR, taking that outside the suppress may enable it but there's only a few options there anyway, if not some string edit which probably is also needed for the CBS, just need to find it.

I thought you could unsurpress the chipset option to check if the blackscreen issue reappears, to test if the system goes bonkers because it can't display the CBS Menu when unlocked.

@barracudax - I know from experience that one will either appear if unsuppressed or nothing will happen and boot process will continue, even though chipset menu would likely still be suppressed/hidden due to whenever the other lock/jump/bypass on the menus it located, just by how it's coded out in the IFR.
But if you want I can send you test BIOS with that change, but to me it wont help show anything/wont give me any useful information to move forward with. It's not suppressed in the same way CBS Menu is, well it is in a general main menu entry suppressed way, but it's not suppressed in the same way at setup IFR-wise as CBS
It's hard to explain, but I know what I mean If you want to test that kind of edit let me know I will send you a file.

Okay, then never mind.

Is there a tutorial on how to edit the IFR like your doing somewhere? I could try some stuff on my own. I only found a tutorial on mydigitallife, but it seems a lot different from what i'm getting out of the extracted IFR files.

I wrote the supermicro support and requested the version 1.0 Bios for the H11DSU-iN with the unlocked CBS menu. Maybe i'll have some luck and they can send it to me.

Not sure about any tutorials, just small random posts here or there. Give me an example setting you want to mess with via IFR/Hex and I can show you a few ways it can be modified
Fingers crossed they will be nice and send you beta BIOS!

Just unlocking the chipset setting should be a easy start.

I received a Bios from supermicro, but it's version 1.00a. I'll ask again for the right one, at least they're cooperative to this point.

The changelog for ver. 1.00a isn't promising

2. [Fixes] Fix SUM GetCurrentBiosCfg problem(Hide Chipset & AMD CBS).
    Description: Fix SUM GetCurrentBiosCfg problem(Hide Chipset & AMD CBS).
    Validation : 1. Run "SUM" with GetCurrentBiosCfg parameter.
                 2. Check the BIOS configuration can be downloaded.
 

Yes, in usual cases Chipset can be unlocked easier, once located in assembly (Since other easier methods don't apply to this BIOS) It's great the are cooperating with you, I can't tell by that change log, but does that mean they unhide chipset and CBS for you?
If yes, attach or PM me that BIOS and I will compare a few sections in assembly and can then probably easier locate where the changes need made for latest BIOS, unless they end up sending you that too.
Once located it's usually only 2-4 bytes that need changed, I'd have it by now but due to less time recently to play around and not being all that great at easily identifying things in assembly I haven't had a chance to dig too deep.
If they end up not giving you a new version, I should be able to figure it out with that one, if it does unlock those for you. I forget, do you have a flash programmer or not?

I'm asking for the first version of the H11DSU with unlocked CBS (i have the H11SSi), so the changes there can be apllied to my bios. The one i received isn't the right one, the changelog states that the CBS and Chipset menu are hidden in that version.

if i get the right one i'll send it over.

Yes i have a flasher, couldn't have recovered from the black screen issues otherwise. AFUWin only has a 50% chance of getting a succesfull flash on this board, it crashes the whole system very often while erasing the mainblock. AFUEfi works fine but wasn't helpful when i didn't have a image during post and boot.

So you aren't even asking them for unlocked CBS BIOS for your board???? Why not??

AFU is terrible, use FPT whenever possible. Good you have programmer, if they don't end up giving you BIOS we can try some assembly changes until we find it.

Hello

I up this topic because I got the H11DSU 1.00 (non A) version with AMD CBS suposed to be enabled.
I have a supermicro H11DSI and I also would like to unlock this settings, but I don't know many things about bios modding, so that everything i could do in order to help.
I'm using H11DSI Bios 1.0c (won't be able to upgrade because of ES cpu)

H11DSU 1.00 bios https://1drv.ms/u/s!AlI9P663Eat0gu17bhGv9jDXtmkpWA?e=h1fZVb
H11DSI 1.0c bios https://1drv.ms/u/s!AlI9P663Eat0gu17bhGv9jDXtmkpWA?e=NrLeIy

Hope it will make things move fordward