hello @bdmaster,

I changed var 0x17 in PchSetup to 0x00. After that I read the bios and flashed it back. Here is the output:

Here is the master bios I read and flashed back:

Here is SCEWin output from SCEWin\5.03.1111\64: SCEWIN_64 /o /s nvram.txt /h Hii.db /v /q

parseFile: non-empty pad-file contents will be destroyed after volume modifications
patch: replaced 2 bytes at offset 503B0h 1727 -> 1127
patch: replaced 2 bytes at offset 503D0h 1827 -> 1227
patch: replaced 2 bytes at offset 503F0h 1927 -> 1327
patch: replaced 2 bytes at offset 50430h 1B27 -> 1627
patch: replaced 18 bytes at offset 50440h 4A10597B0DC0584187FFF04D6396A9151C27 -> 000000000000000000000000000000000000
patch: replaced 2 bytes at offset 509A0h 1727 -> 1127
patch: replaced 2 bytes at offset 509C8h 1827 -> 1227
patch: replaced 2 bytes at offset 509F0h 1927 -> 1327
patch: replaced 2 bytes at offset 50A40h 1B27 -> 1627
patch: replaced 18 bytes at offset 50A58h 4A10597B0DC0584187FFF04D6396A9151C27 -> 000000000000000000000000000000000000
Image patched

Your Bios Mod :

https://www.mediafire.com/file/kyxn9vjvu...d_Bios.rar/file

Rename the file as bios.bin and flash it by Fptw64.exe -f -bios bios.bin
Let me know
Regards

Hi@ BDMaster,

ich flashed your BIOS-mod and everything works fine and BIOS is unlocked.

Many Thanks!!!!!!!!!!!!!!!!

I am happy for you friend , cheers

Hi @BDMaster,

one single question:
under Advanced -> PCI SUbsystem Settings there shouild be a setting called "Above 4G Decoding" bit in my bios, there is only on option called "BME DMA Mitigation".
Can you tell me the var offset and setting (enabled or disabled) for "Above 4G Decoding" and why it is not visible?

You have to use AMIBP 5 APTIO to set all to USER if there aren't visible yet , save changes and flash it again, then if it isn't visible yet , then may be i have to modify the EFI section /46 >> /47 to make it visible ... but if it isn't into AMIBCP , then there isn't completely as AMIBCP doesn't care about EFI IFR and shows all options availabily , but Bios use the EFI scetion to lock some variables and options.
So if it'sn't into AMIBCP no way ...
Let me know
Regards

@BDMaster
it is visible in AMIBCP but under root menu "PCI Subsytem Settings" which is not under Advanced

If I want to save the image in AMIBCP i get a rebuild error.

IFR Extractor says:
0x3646F Suppress If: {0A 82}
0x36471 Variable 0x2753 equals 0xF {12 06 53 27 0F 00}
0x36477 Setting: Above 4GB MMIO BIOS assignment, Variable: 0xFA {05 91 CF 09 D0 09 AC 04 16 00 FA 00 10 10 00 01 00}
0x36488 Option: Enabled, Value: 0x1 {09 07 8F 00 30 00 01}
0x3648F Option: Disabled, Value: 0x0 {09 07 90 00 00 00 00}
0x36496 End of Options {29 02}
0x36498 End If {29 02}

@projektion You friend wrote this ... "Above 4G Decoding" and there is'nt ...
Now you wrote "Above 4GB MMIO BIOS assignment" and i know that, i saw before, so i will unclok this one if you cannot see from Bios Menu Tabs ...
and i will modify the SetupData subGuid to get the new settings.
Please make photos about Bios Menut Tabs visibles and AMIBCP settings you made , so i can see too what you are seeing,
i haven't you pc
I will reply quickly ;)
Regards





It will be saved wiithout sìgnature !

Your Variable is here , under Chipset folder ...



Let me know, please
regards

@BDMaster,

I only ment "Above 4G Decoding", thought "Above 4GB MMIO BIOS assignment" is the same?! Above 4GB MMIO BIOS assignment is not needed.
My AMIBCP looks the same like yours if I open your modded bios. I havent made any meaningfull settings within AMIBCP and if I want to save, i get an error, even if I change nothing.

Above 4GB MMIO BIOS assignment is not visible, too

does my actiual modded bios from you have signature?
is there any problem using unsugned bos?