@Hexabit - That may not work, as mentioned in above thread, about AM3+. I could not download from the link you provided for BIOS, Eset gives virus warning and blocks site.
So, I downloaded the BIOS from the BIOS-mods site you linked, hope that is the BIOS you wanted modified.

I am not pro at AMD BIOS modifying, please flash at your own risk and be ready to recover from bad BIOS flash if necessary.
That means you need CH341A and jumper cable to reprogram BIOS if you do not have one already, cable not necessary if the BIOS is socketed (removable, not soldered to board)
With that said, I have modified AMD BIOS in the past, with success, but it's not always success (usually fails to flash if not good).
I did test opening this in several tools after mod, no errors and everything looks good!


After flash, clear CMOS and then power up and enter BIOS to load optimal defaults, then make any other changes you need and save.
I see a "Just Woot" BIOS menu, so someone has already heavily modified this BIOS!

Zitat von MiesMosel im Beitrag #5

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Hello alexmlc,

1. ... look at Post #2, what Phoenix48 has written. Then download HxD (hex editor tool).
2. Microcode depends on your CPU - which one do you have?? Look on cpu-world for the CPUID (p.e. FX-8350 -> 600F20).
3. Search & download AMD microcode here -> p.e. cpu00600F20_ver0600084F_2016-01-25_C8460314.bin.
4. Download the latest (newest) mainboard-BIOS -> which ons do you have (manufacturer + exact model + revision number)?? ... and extract it on your HDD/SSD.
5. Download MCE and latest MCE-database (source code .zip). Then extract p.e. r60.zip in the folder of MCE.
6. Open MCE and copy'n'paste the mainboard BIOS into it, highlight the MCE-window & hit "Enter". You'll find the new folder [Extract]->[AMD]-> open old microcode, beginning with p.e. cpu00600F20_ver... into HxD.
7. Open BIOS-file with HxD, open new microcode (mc) into HxD. Mark all with [Ctrl]+[A] ... watch for length (p.e. "A20" hex).
8. Mark+Copy the first line of the old mc, go tab of BIOS-file -> [Ctrl]+[F] and search for "hex" -> [Ctrl]+[V]. You'll see the first line of the old mc.
9. In the BIOS-file mark manually from the beginning of this first line ... to the end of length -> "A20".
10. Then go to tab of the new mc. Mark all, copy it ... and insert it into the marked part of the BIOS-file. Save now!
11. Use MMTool v5.02.0024_patched (or MMTool v4.50.0023) to open the original BIOS-file -> search for GUID of the microcode module -> p.e. on my Sapphire's board it's called "AmdProcessorInitPeim". If you don't find it, ask here for help.
12. Look for the GUID behind -> p.e. my is "DE3E049C-A218-4891-8658-5FC0FA84C788". Remember it.
13. Go to UEFITool v0.22.4 and open it. Open the new edited BIOS-file with it. Search for the GUID above ... and right-klick on it -> Rebuild it.
14. [Ctrl]+[F] or go to "File"-Menu -> "Save Image file".

Now sending some €$€$€ or giving thanx to me ... for writing this wonderful guide for you! ...

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I can help you on this tonight if no one does before then

Zitat von Lost_N_BIOS im Beitrag #18

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I can help you on this tonight if no one does before then

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I meant I can do the mod, fix the BIOS for you tonight with update. If you want to correct yourself you can, but to explain how to fix might be more confusing.
You can try the mod again, or correct the current mod BIOS by extracting that microcode GUID again and make sure only each microcode is there one by one in order shown by MC Extractor.
Checking by full copy/search in hex editor each microcode, then when you get to the doubled one search only for the top few lines of the microcode and remove the second entry since it's probably partial.
Then make sure last one that looked missing is there in full. Then save the file, check it in MC Extractor again to be sure all microcodes are there and correct before inserting into BIOS again.

If that doesn't help, sorry it's tough for me to explain sometimes, I can do it for you tonight if you don't get it before then.

I would appreciate if you could mod the BIOS for me, because than I would have a reference file. Tomorrow I will try it again, and if I suceed, my file and your file should be identical.

Well, everything would be easier if changing the AMD microcodes in BIOSes would be as easy as with the Intel ones when using UBU...

OK, I will do the mod. I agree, it would be nice if AMD updating was as easy as Intel!

Watch here for edit tonight, I'll put in link to mod once I'm done. I will also include the GUID microcode file itself, that would be inserted post creation/hex mod etc. (I create all new file, instead of editing into, it's easier for me that one)
And I will try to outline method I used, maybe it's easier for some to do my way? Editing BIOS now, will update thread soon.

@BlackArchon - Mod done! Here is method I used, and files so you can compare with your work as you go if you decide to do it again. My method is not the same as the one you followed earlier, and could even be more involved, I'm not sure which way is tougher.
Hopefully my method is easy for you to follow, I tried to remember to add each step into guide as I went, but much of it being second nature I may have skipped something little somewhere but I don't think so as I read it over.


https://www.sendspace.com/file/qex7bk

Tools Used -
Hex Editor Neo
UEFITool_0.25.0
FD44Editor_0.9.2
MC Extractor 1.16.1 w/ R74 database
AMIBCP 4.55.0070 (For verification only)
MMTool 5.02 patched + 4.50.0.23 (For open/verification only)

1. Drag and drop BIOS file onto FFD44Editor to get "USB Flashback / Recovery" name = SABER990.ROM

2. Copy the original BIOS, rename copy to SABER990.ROM, this will be our working file.

3. Drag-n-drop SABER990.ROM onto MC Extractor, Leave this window open for reference as you go. Gather all extracted microcodes from Extracted/AMD folder within MC Extractor folder.
Delete any files in there previously, or delete all and redo drag/drop scan if needed, so that you only have microcodes from this BIOS

4. From AMD Microcode Repository @Gitbub gather all updates you need, those shown as "No" on right side of MC Extractor when doing initial scan.

5. Put all microcodes into a folder somewhere handy for you. All those gathered from this BIOS extracted by MC Extractor + all updates you download from Github, then move all the older versions into their own folder for use later, leaving only the updated versions in the main microcodes folder.
Look back to MC Extractor initial scan window if needed to see which need updated. 4 microcodes need updated in this mod 00100FA0, 00100F41, 00600F20, 00600F12

6. Open first extracted microcode shown in MC Extractor with Hex editor, if you're replacing this microcode, open the older copy because we will search BIOS for some of it's code in UEFITool.
In this instance it's CPUID 00100F40 already latest version so no older copy needed. Open that file in hex editor and copy first line of hex bytes

7. Open SABER990.ROM in EUFITool, do file > Search > Hex and paste in he hex you copied above from the 00100F40 microcode. One result instance will appear in bottom dialog area of UEFITool.
Double click this line of result, it will open BIOS in top area to exact location of this hex search result = Microcode files location.
In this instance, that will be the PE32 file in sub-GUID DE3E049C-A218-4891-8658-5FC0FA84C788, under GUID 7A9354D9-0468-444A-81CE-0BF617D890DF. Right click the PE32 file image and select "extract body", this is what we will update. Leave UEFITool open here

8. Open the above PE32 image body file in hex editor, along with copy of first old microcode you will update, and same version new microcode.

9. Copy entire first older microcode, go to PE32body image and search hex then "Find All" and paste all hex of old microcode into search, this will highlight all the old microcode for this CPUID.
Now, go to new microcode tab, select all and copy, then go back over to PE32body image again and hit paste on top of the highlighted older microcode.
This will overwrite the old code with new, you can look at beginning area while it's still highlighted and end area, and do undo/redo and see that only this section was written to during the copy/paste

10. Repeat step 8 for 3 remaining microcodes, once done, save this PE32 Body Image as a copy of the file you were editing. Name it PE32Modified, PE32mod etc so you know you edited this copy

11. Now, drag and drop this new PE32 body image into another window of MC Extractor to check all microcodes are new and look correct (No dupes, none missing etc)

12. Go back to EUFITool still open from previous actions, right click the PE32 section again and select "replace body" This will do the rebuild action mentioned earlier in the thread once you save file

13. Done, now go to file save image and save this as a copy somewhere, named for now modifiedBIOS etc so you know it's the mod.
Once done you can move this into it's own mod folder so you know which is which, then rename the file again to the recovery name SABER990.ROM so you can use USB Flashback easier.

14. Take modified BIOS and open in all tools you can to see if it looks the same as the original. Open in MMTool 4.5 and 5.02, AMIBCP 4.5 and 5.xx etc, UEFITool, and makes sure it all looks OK, opens properly without errors,
But, if there is error it may be OK, if error show in original like in UEFITool, you want to make sure you see the same in the mod as the original, no new errors.

Many thanks for your efforts and this new guide! :)

Is there a specific reason why you chose to do things a bit differently than in MiesMosel's guide on #5?

You're welcome! Everyone does things a little differently, that's all, no particular reason

Hello!

@BlackArchon
I updated the modified Sabertooth-BIOS from Lost_N_BIOS with the actual UBU.
So that's it ...

Wow, thank you! :)
I will also try to integrate newer microcodes during the next days - I need practice because here are some more AMD boards in need of an update.

Not all AMD boards have issues that you need to work around like this, many can be updated directly with MMTools or UBU (Always try old 1.69 too if 1.7 gives issue)

@Lost_N_BIOS
Thanks for your thanks & for your work. I watched into your modified MINIX 890GX-USB3 BIOS.
It looks not good, that the new MC 00600F12h has a size of A20h, while all the other CPU patch slots have only a size of 800h.
You can see that there's a problem in the second AMIBCP* (picture 2) -> a lot of mad data (MC ID, Date, CPUID) in the last line.

*Could you please give me some AMIBCP-Tools in a DL-Link? Would be nice.


@Hexabit
I fixed it, but cannot guarantee/ensure 100% functionality. The board doesn't support FXs official.
This isn't really a board for an AMD FX-4100. AGESA not changed, that's too difficult.
There are now 2 BIOS files:
1. patched with the new MC 00600F12 on the right line/slot (stepsize@800h).
2. patched and updated AMD OROMs for AHCI/RAID to v3.3.1540.19

@miesMosel - thanks for checking. But that microcode update is now 2.53kb by default, that is why the size differences - https://github.com/platomav/CPUMicrocode...07_8187EA3E.bin
There is no way to update to latest microcode and keep 800h size, only older versions. Making all match sizes does not always matter, you can make even larger if you wanted, as long as everything is corrected after that.

But yes, I do see what you mean about the AMIBCP info now, thanks for catching this. However, your uploaded BIOS also has the same A20h size microcode, and same AMIBCP issue (
This is probably AMIBCP error, due to newer microcode format/size vs how old this program is, can be ignored most likely


And both of our BIOS have incorrect dates and such when checked with MMTool 3.26 as shown in your image above.
I think all these things you noticed, while great catch, are just errors due to this old software didn't expect new microcodes of this size or format so don't detect them properly

Yes, give me a second and I will package up all the older AMI tools I have for you, except for the new stuff which I'm sure you already have like MMtool 4.50 and 5.02, 5.0.07 and AMIBCP 4.55.0070 and 5.02.0023
PM coming for this

Hello Lost_N_BIOS,

the difference between our BIOS versions we made, is the beginning of the new microcode.
Yes I have the date-error, too. Otherwise my version has correct beginning & values.
So I think, the alignment ist important for the microcode to work.

Explanation: At the start of PC, the AMI BIOS would be read by the machine from the bottom.
It finds the 15 microcode slots by offset-addresses @ CB90h, D390h, DB90h, E390h, EB90, F390h, FB90h, 10390h, ..., 13390h (new MC) and 13B90h (incorrect values through oversized MC before). You can see it easily in the picture of MCE -> offset.

In your edited BIOS the new MC starts @ 13950h and MCE/MMTool don't find the beginning with the correct values (CPUID, Revision, Date, ...).
So that's why I had to find a new solution.

I don't know, if it's that important thing, that the offset must be correct - but I think so, it should.
And I also don't know, if it could make problems, that the new MC is bigger and creates an offset entry, that could cause an errror.
I hope, that the oversized MC at the end should not be a problem. Important for the machine should be the offset address to find CPUID (& Reversion), that matches with the CPU inside (FX-4100).

It's on @Hexabit to test it & give feedback, if he/she wants to find it out.

Best regards, MiMo