Hello,

I wish to unlock/modify BIOS/ PCH Configuration features for ASUS ROG Z390-I:
https://www.asus.com/Motherboards/ROG-ST.../HelpDesk_BIOS/

High Precision Timer
TCO Timer

I'm kind of new here and would greatly appreciate your help or either point me into the right direction.
Look forward to your feedback or reply's.

Thanks

@jon0071337 - Can you already see >> Advanced >> PCH Config submenu?

Since this board does not have USB Flashback, we have to use FPT method, lets get started with below. Do not send me biosreg.bin yet, first we need to get past step #2, then you will make new biosreg.bin and send to me
Tell me what error you get at step #2

step #2

Error 167: Protected Range Registers are currently set by BIOS, preventing flash access.
Please contact the target system BIOS vendor for an option to disable
Protected Range Registers.

FPT Operation Failed.

I get same result when doing step #2 from DOS as well.
Thanks

@jon0071337 - Thanks, error is expected, DOS not needed Did you have secure boot disabled before you started? If not, redo again and disable it, also remove any BIOS password or TMP/Encyption etc.
167 can be a pain sometimes, but we can try to bypass. Are you using the latest BIOS now? If not, flash it in using EZ Flash, then follow guide below, start at step #6, I've done 1-5 for you
[GUIDE] Grub Fix Intel FPT Error 280 or 368 - BIOS Lock Asus/Other Mod BIOS Flash

Toss out, or set aside previous BIOSreg.bin file, so you don't mix it up with new one you will make (or use new name, such as biosregnew.bin)
After you do this, you will redo step #1-2 with FPT, for this use a new BIOSreg name, once success at step #2, you send me that new bios region file.
I also need answer to my question at post #2 before I do any edits.

Rename .efi file to >> Shell.efi

Flash Protection Range Registers (FPRR) variable to ensure disabled >> 0x127B
BIOS Lock variable to disable >> 0xBBD
BIOS Guard variable to ensure disabled >> 0x7CD

So, at grub prompt, you will type the following, one line at a time, enter between each, case sensitive
setup_var 0x127B 0x00
setup_var 0xBBD 0x00
setup_var 0x7CD 0x00

Then reboot, and redo FPT step #1-2 using new BIOS region file name, if success at step #2, send me the new BIOS region file.

Zitat von Lost_N_BIOS im Beitrag #4

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I also need answer to my question at post #2 before I do any edits.

Rename .efi file to >> Shell.efi

Flash Protection Range Registers (FPRR) variable to ensure disabled >> 0x127B
BIOS Lock variable to disable >> 0xBBD
BIOS Guard variable to ensure disabled >> 0x7CD

So, at grub prompt, you will type the following, one line at a time, enter between each, case sensitive
setup_var 0x127B 0x00
setup_var 0xBBD 0x00
setup_var 0x7CD 0x00

Then reboot, and redo FPT step #1-2 using new BIOS region file name, if success at step #2, send me the new BIOS region file.

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@jon0071337 >> Question at post #2 >> Can you already see >> Advanced >> PCH Config submenu?

Zitat von Lost_N_BIOS im Beitrag #6

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@jon0071337 >> Question at post #2 >> Can you already see >> Advanced >> PCH Config submenu?

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@jon0071337 - Here, I think I got it, but possibly not and TCO may still need another suppression edit.
Please test M1 first if HPET AND TCO does not show up, test M2, if then still no TCO let me know and I will make follow up edit.
* Link removed per request *

Flash via >> FPTw.exe -bios -f filename.bin

Both settings [HPET and TCO] show up in Advanced >> PCH Configuration and didn't notice any real difference between these 2 new bins.

Now it shows all the hidden settings from Advanced >> PCH Configuration.
Can you make it only show only IOAPIC 24-119 Entries like original and add only HPET + TCO.
I also don't care to much about TCO but HPET is the most i need so this will work for me as well.

Check attached pictures.
Thanks

I got the files, can you please remove the link from tinyupload.
Don't wanna get hardware ID banned from gaming services if someone out there were to use and exploit it.

Found this picture in another thread here. I want something like this or maybe only HPET.

@jon0071337 - So, what, unlocked more than requested is too much? You were only supposed to flash one BIOS there, unless first one didn't work. So, did M1 work and show HPET and TCO, or only M2 showed both?
Yes, I can redo and make only TCO and HPET visible, once you answer above.

Also, you asked for TCO in your first post, now you don't want it?? I can do both, no problem, just funny you said that after requesting this specifically
Please confirm HPET only, or HPET + TCO?

The pictures here shows bin2.

bin1 worked as well and showed up same exactly same stuff in Advanced >> PCH Configuration including HPET and TCO.

@jon0071337 Please see my edits above and answer TCO/HPET question.
Also, please confirm, in M1 BIOS I sent you, both TCO and HPET were visible? I did not look at images, far to large to download non-zipped just to look at BIOS settings

Zitat von Lost_N_BIOS im Beitrag #11

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Also, you asked for TCO in your first post, now you don't want it?? I can do both, no problem, just funny you said that after requesting this specifically
Please confirm HPET only, or HPET + TCO?

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Thanks, but now missing confirmation of question at post #13 - Don't worry, it's no hassle to do both or only one, I just needed to know for sure what you wanted.

* Edit @jon0071337 - here you go, let me know if all OK now, and only HPET + TCO added, once you confirm you got the file I will remove the link
* Link removed per user request *