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  Topic Review (Newest First)
03-30-2020 06:09 AM
Reous I recommend to import your UUID, MAC and SN to the bios before flashing.

https://github.com/LongSoft/FD44Editor/issues/4
https://github.com/LongSoft/FD44Editor/releases
03-29-2020 04:51 PM
mirzet1976
Quote: Originally Posted by ShadowHunterMan View Post
Has any one used flashrom to downgrade a bios on the Asus x570-p?

Any help you can give to concern a cap to bin and for me not to brick my x570?

I tried using afudos, but no luck. I upgraded to bios 1405 from 1005 and i can't get my ram to run at 3600 any longer. Having a lot of ram issues overall. Trying to get back to 1005.
Use UEFITool to extract bios.bin from capsule and then flash bios with flashrom.
https://puissanceled.com/vrac/Bios_m...s/UEFITool.exe
03-29-2020 12:50 PM
bluechris
Quote: Originally Posted by ShadowHunterMan View Post
Has any one used flashrom to downgrade a bios on the Asus x570-p?



Any help you can give to concern a cap to bin and for me not to brick my x570?



I tried using afudos, but no luck. I upgraded to bios 1405 from 1005 and i can't get my ram to run at 3600 any longer. Having a lot of ram issues overall. Trying to get back to 1005.
Does your motherboard had s fall safe bios writing procedure like the gigabyte ones? Like Qflash i mean. With that i assume you can roll back.
03-29-2020 12:38 PM
ShadowHunterMan Has any one used flashrom to downgrade a bios on the Asus x570-p?

Any help you can give to concern a cap to bin and for me not to brick my x570?

I tried using afudos, but no luck. I upgraded to bios 1405 from 1005 and i can't get my ram to run at 3600 any longer. Having a lot of ram issues overall. Trying to get back to 1005.
03-27-2020 08:19 AM
MT441HD Hey, i have switched boards for my 3700x and am looking to unlock all options from my MSI B450 TOMAHAWK MAX. Does this guide still work with 32mb flash BIOS like that. I have bios flashback and a backup laptop with a tested and working old Cruzer USB so i'm fine risking, i just want to disable HPET and stuff. Any1?
03-22-2020 06:44 PM
mirzet1976
Quote: Originally Posted by vtecquila View Post
Hello guys , any thoughts of creating a modded bios for the Asus Strix B450-f gaming ?
For X370 -B450 follow this guide - https://puissanceled.com/vrac/Bios_modding/EN.html - works with my Tuf B450 Gaming

Quote: Originally Posted by t1ago View Post
@waltdanger , I have x570 tuf (non wifi version), and like to disable spread spectrum.
What other mods where you able to do on the bios?

How split second part in hex editor?
Open X570.ROM in HxD
Go to Edit - Select block type in Start-offset 1000000 then End-offset 2000000
Copy selected block paste it to new file in HxD - save close
Open 16MB ROM in AMIBCP edit and put it back to origi bios.ROM and save it as modx570.rom.
Fix Checksumme
03-22-2020 06:56 AM
t1ago
Quote: Originally Posted by waltdanger View Post
I was hesitant to go forward with the flash due to risk of bricking board but decided to just go for it tonight.

To recap:
-Turn off your overclocks just in case! Don't want to risk some data corruption as unlikely as it might be.
-Dump your BIOS with flashrom
-Split it and export the second 16MB chunk with hex editor
-Make changes with AMIBCP5 .31 on that 16MB chunk
-Merge it back into full 32MB bin
-Flash with flashrom

(this is for ryzen 3800X, i take it the first 16MB of bios is what it used for Ryzen 1000/2000, and the second 16MB chunk for 3000).
@waltdanger , I have x570 tuf (non wifi version), and like to disable spread spectrum.
What other mods where you able to do on the bios?

How split second part in hex editor?
03-18-2020 03:00 AM
vtecquila
Asus Strix B450-f Gaming

Hello guys , any thoughts of creating a modded bios for the Asus Strix B450-f gaming ?
03-09-2020 03:23 PM
waltdanger Haven't done any other mods, some are easy like the PCH Fan control mod.
BCLK adjustment doesn't appear to work at all.. I thought it would work but limited to 1mhz steps, but it doesn't take effect and is locked to 100.

There is also something called Determinism in one of the menus that you have to hex edit to enable with preference for either consistent Power or Performance - I do not know if these apply to Ryzen 3000 chips though, but it sounds like the default is Performance? Anyone play around with this? I wonder if it might change boost behavior if changed to Power, for higher PBO boosts.
https://community.amd.com/thread/223642
https://www.amd.com/system/files/201...eterminism.pdf
03-09-2020 12:43 AM
cosminmocan Hey @waltdanger , I also have a x570 tuf (mine's a non wifi version), and I would also like to disable spread spectrum.
What other mods where you able to do on the bios, and would you be willing to do it again . I would backup my bios and send it to you.

Thanks in advance, and great job !
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