Only BIOS in post #44 is valid - one BIOS rom is MXIC 25L6473E in third image attached, first image is corrupted so I cannot see it (The images don't need to be so large)
Second image attached above is not BIOS (Infinion SLB9670)

I will check your backups, I need to check that since you have two roms, this was not mentioned previously. Did you verify the dumps, read then verify with programmer, and it then said main buffer or memory and chip match 100%?
Same for when you test BIOS #44, did you write then verify file in memory/buffer match programmed chip?

I told you this mod may not work for your system, but we can keep trying now that you have programmer. Please wait and let me check things out, thanks!
It may be failing due to you have two BIOS roms there, one may be ME or other non-BIOS stuff, or one may need BIOS w/ ME one without.
If they do both contain BIOS related information I can see the BIOS I sent would obviously fail, I was unaware there was two roms on the board and you only sent one BIOS.
Once I can look at them both, I will be able to better tell you what to do.

Hopefully you verified your backups before you wrote anything to the flash roms, otherwise you will have lost all your board details and may not be able to recover by flashing backup files back into the board.

Main problem, aside from two BIOS on your board, is probably due to I changed chipset in ME settings during transfer that and or we need to use older ME version. I will fix the chipset change shortly for you, once I look at your dumps you sent.
Please wait patiently and hopefully we can sort this out!

* Edit #1 -----------------

8MB BIOS Dump does not contain valid ME (I'm checking on what this means, I assume no ME but odd BIOS so program thinks it finds ME it can't ID)

16MB dump contains ME, so for now, this is our initial target BIOS. Program full BIOS here at the 16MB chip. The other 8MB one I will need to modify it's BIOS separately, once I identify if it has vBIOS or GOP in it or not

Modifying both images again now, from scratch, using your dumps! Will have test BIOS for you in a while, hopefully working this time now that I have all info

* Edit #2 = Done!

Here is two new and all fresh BIOS builds. These are both made from scratch using your dumps posted today
If these fail, then again we'll have to do same, but with Chipset change (testing twice, once with Z170 and once with Z370) and or older ME. We'll test if 11.6 ME change is OK first before anything else, with old CPU.

If we do have to do another round, I will send you BIOS files to test with one change at a time, so we can better find the problem.
For example, if we have to do more, next BIOS will be made from your backups, with only ME change, then next only me + microcodes, then ME + Microcodes + vBIOS, then ME ME + Microcodes + vBIOS + GOP - all tested with older CPU, then once all works with older CPU, try new CPU.

Fresh builds, all done by hand (ie no UBU for mod). Built from your BIOS dumps from programmer.
UBU used post-mod to check all versions info is correct


For now, only these changes again
CPU microcodes included 506E3 + 906E9 ONLY
Intel ME 11.0.18.1002 >> Updated & settings transfer to clean ME 11.6.20.1221 w/ **Chipset NOT change to Z370** (No chipset change!)
Intel EFI GOP Skylake 9.0.1034 >> updated to SKL-KBL 9.0.1048
Intel FFS-Orom vBIOS Skylake 1036 >> Updated to SKL-KBL 1059
Unlocked Flash Descriptor (FD) for all regions @ 16MB file
FIT Tables corrected at final edit

PCIE (NOT) patched

Program both BIOS using your programmer, make sure you put 8MB file at 8MB rom and 16MB at 16MB of course
https://www.sendspace.com/file/717gqs

ok GOOD I WILL CHECK ALL THAT AND LET YOU KNOW WHAT ARE NEWS.

I AM SURE WE WILL SOLVE IT DURING THIS WEEK.

REGARDING READ AND WRITE BIOS TO CHIPSET, EVERYTHING IS OK BECAUSE AT THE END I USED AGAIN ORG BIOS WHICH I DUMPED FROM CHISET 16MO YESTERDAY BEFORE WE PROGR YOUR BIOS AND I SENT IT AGAIN TO CHIP AND MY COMPUTER IS WORKING PERFECTLY.
EVERY TIME WE MAKE AND PERATION WE CONFIRM THE CHECKSUM.

SAME
THANK YOU
SALIM

Hope so man, we've been trying so long, we have to win soon

Fingers crossed for you, this one works hopefully now that we program both chips with updated BIOS!

I learned from internet that the second chip is only used if it is activated in main bios.
If you use my dumped file, you will see that we have 2 sizes 16M and 8M bioses but the value is 1 which mean that only 16M is used in our case. If it was 2 then both are used in same system.

Thank you
Salim

One has Intel ME in it, and the other does not, that is only differences. Be sure to program both, from files I sent you.
And you have to have Intel ME working on this system, or you cannot do this mod. I didn't look back in the thread yet, did you ever run MeInfoWin? if not, run it now and see if ME is working/being used, if it's not then you have big problem until you can figure out in BIOS where to switch ME on/enabled.
I checked, your system uses Intel ME, so you're good to go, just be sure to program both chips with the BIOS files I sent you.

Hello my friend,

Sorry for my late reply. I was outside for all the day.
Just now I used your new bios 16/8 with my 2 chip installed on motherboard and still cannot run computer with modified Bios.
When I power on my computer I can hear 5 long beeps and then 2 fast beeps then computer restart and again 5 LB and 2 FB and keep doing same.
Nothing on screen, only still black. I think we are very close to our solution.

Hope my DIAG can help you.

Thank you
Salim

Hi

Here is a Video which I made for you to see exactly the problem.

Note that when I plug on power cable and without pushing the power button, I am getting those Beeps and lights.

See my Video. Same results are happening with both CPU 6th and 7th GEN.

I checked from the web to see what does mean those beeps and i got this link; mistake is "The embedded controller cannot find valid firmware" and I think it has a relation with EC part. I think we should reset it or what;

https://support.hp.com/ee-en/document/bph07107#AbT1

Here is link for video i made for you;
https://drive.google.com/open?id=18yb9gt...GLEJA5-Kk6PWOMI

Goodluck
Salim

Can you download EC updates for this system? The BIOS is so unusual I may not be able to locate the EC FW anyway.

OK, we have to do the one mod at a time thing I mentioned, to see where and when the problem arises. This will take some time, be patient. Do all these tests with the old CPU only.

Here is BIOS with only ME Firmware changed for first test (16MB is only BIOS with change, 8MB is your dump)
https://www.sendspace.com/file/g3zwag

If this BIOS OK, then next we do ME + Microcodes
Then ME + Microcodes + vBIOS
Then ME ME + Microcodes + vBIOS + GOP

When you programmed in modified BIOS, did you erase w/ FF and then blank check flash rom first using programmer? If not, please do that now for both flash roms, then test again the mod BIOS from post #76
Moving forward, always erase the flash rom with FF before writing in new BIOS and do blank check before you program in new BIOS.

Hi

I did as per your instructions and got below results;

1- I used your new mod ME 16MO files with my 8MO Dump. Computer start with one long beep and show first page telling updating bios and keep restarting without doing anything even for 1 hour.

2- I tried to use my old 16MO file with my old 8MO file and got same results as with your modified ME file and computer dont start windows at all.

I dont know if my BIOS cHIP have a problem or what.

Thank you
Salim

Sounds like your programmer version being used is not working 100%, are you doing a verify after you write to the chip? If not, please do that until you get your original dumps both working again, then remember that software version to use next time and try again.
Because, as you know, your dump 16MB and 8MB wrote back to both chips should be working 100% now like it was before, and like it did last time you wrote the back after first flash test from post #76

I assumed maybe this was initial problem with first test from BIOS mod in post #76. Keep trying, you will figure it out. Sometimes new or older version software is better, and sometimes you can pick exact match to chip ID, other times you must pick shorter version of ID Name.

Also, please see this post by @plutomaniac regarding the 8MB BIOS chip and it's BIOS contents. He thinks we should leave that one as it is, so flash it back to original dump status
ME Analyzer Intel Engine Firmware Analysis Tool Discussion (18)

HI

I used my second similar system same system2 to make new tests because system2 is not working proprely.

I made update for 16MO BIOS CHIP with your last bios you sent to me and without changing 8MO CHIP.

1- When my System started, it start with 2 long beeps + 4 short beeps and then i got message on screen;

BIOS identity Data Recovered
The BIOS has recovered its indentity data from Embedded Controller due to data mismatch.

2- Then after the first screen it go to another screen;
System Bios Update
Finishing Bios update process

Then after it finish, system start normally and log to windows screen.
After 2 to 3 mn using windows, CPU cooler speed became very fast and keep as is till i shut down computer. every time i start windows same.

3- Here is a file which i got with ME Analyzer,

That confirms second 8MB BIOS is backup/recovery BIOS. This can be good, or bad. One, if it must not be touched, and then must match something in the main 16MB BIOS, we may not be able to mod at all.
Or two, if we can edit that BIOS, but only certain things and then that allow update both, we have to figure out what can be changed and what can't.
All/any of that kind of testing is very hard for you and me without me having the system here, so I am not sure what this leaves you wanting to do?

You did this test with BIOS from #83 correct? If yes, then that is simple ME only change, and if BIOS sees that and this simple change causes BIOS recovery then it's probably going to be a problem moving forward with any modifications until I can figure out what is 8MB BIOS can be changed and what can't, which will be tough to do here without system, so you'd have to do all testing and recovery etc. Since you're still not able to fix system2 initial one back to stock dumps, do you want to risk this one too now? I would wait until you can get the other fixed from it's dumps, then you will feel safer.

plutomaniac said that 8MB BIOS, some of the stuff at certain regions was incomplete, like ME for example, so maybe that is how it checks, partial file of what it considers to be correct stored in 8MB chip for crosschecking, then if does not match 16MB it invokes the recovery.
If that is the case, maybe I can look at that, figure out what partial pieces to put in for each thing it checks, and then it would be OK, but you'd again have to risk this system to test that by flashing both chips again.
There may also be BIOS setting to disable recovery checks, so this can be stopped and both could be updated without issue, not sure, but since this is EFI/Insyde (Intel) based BIOS, I do not have any tools that properly work with this kind of BIOS to view/edit settings.

Based on your docx file, ME was updated and so BIOS flash went OK initially and ME was updated. But, due to what you describe with the fans etc, sounds like this system is not working very well with that ME version, so you may need to flash it back by programming back onto 16MB chip your original dump from 16MB.
And, that rules out any of this mod you want to do because if you can't use certain ME then you can't do the CPU upgrade you wanted, it only works with certain higher ME version than your stock and I put on the minimum version already.

Hi
Do you want me to send you one barebone system without CPU ddr4 and HDD. If yes show me your address and I will ask a friend to do that.
Regarding my tests, I used your both last 2 files and for both system made a recovery for bios to 2.18 but ME version still same as you updated it.
Waiting for your answer.

Salim

No, I don't want you to send me system, I simply meant it's tough to figure out without system in my hands you know. That would be far to much hassle and wasted $$ in shipping.

Does 8MB BIOS current contents match original 8MB BIOS dump? Make a new dump from it, compare that in hex editor to original 8MB dump, if same then system should be able to recover once you flash back 16MB Original dump to 16MB chip.
Maybe just some failed writes when you wrote with the programmer to either chip. Dump their contents and compare with the files you meant to be written, and especially 8MB original dump with current 8MB chip contents. Don't write to the chips anymore until we figure out what's causing the problem.
I say this because if 8MB chip contents are same as original dump, and then you write 16MB original dump back to he 16MB chip, there is no wait it fails to start or be in original state without some flash programming problem/error (not writing to chip fully)

Or, did you get system 2 back up and running again?

Hi

As I told you Ihave another system similar to System2 which i am using now to make tests.

The first system2, Ithink it has a problem with motherboard when i took out SPI CHIP from board, maybe some parts are missing from MB and this is why it cannot start again and keep only geenrating beeps. I will try to solve it later.
Now I used my second similar system to system2 and I used your both Files which you sentto me before;
1- File where you only changed ME
2- File where you added all changes like ME update, CPU microcode, VBIOS....
I used all this without changing 8MO original one. same as it come from factory.

What I got is same for both files; when system2 start booting it made a recovery for old version Bios 2.18 then start normally with windows and the only problem is CPU cooler speed is very high and I think it is because of ME version which we used. For both files, only ME region changed and all other regions are back to old version and cannot use CPU 7th GEN.

Hope we can have a chance to change it.

Let me tell you on thing; The New model for Eliteone 800 G2 which can use 7Th Gen cpu is Eliteone 800 G3, you can find it on HP support website. I think that this Bios can help us to sort out the version of ME and all related things we need to update our G2 version. Please try that from this link;

https://support.hp.com/us-en/drivers/sel...one-pc/15292420

Hope this idea can help us to solve our case. I think Intel Chipset used here is Q250.

Thank you
Salim