[Problem] Gigabyte B450M DS3H, Bios Mod, biffurcation

BIOS/UEFI Modding BIOS Modding Guides and Problems
1

Hi.
I fight currently to make any biffurcation possible for this mobo, i use it as home lab and need few more ports for GPUs.
Following Attempting to enable 2x8 bifurcation in MSI B450 ITX Gaming Plus AC - #9 by jason098
i maganed to unlock PBS Menu, but settings doesnt do anything. still got x16 link even when set 8x4x4/4x4x4x4 etc.
Is there anything more i need to change ?
GitHub - kenavru/B450M_DS3H_MOD: bios mod for this mobo
here is what i managed to do

WIN_20241031_23_54_18_Pro
WIN_20241031_23_54_18_Pro1920×1080 182 KB

tried with f61 (agesta 1.2.0.0) and new f67d bioses

2

as i research, there is high possibility that those functions where removed from agesta as they didnt fit 16MB bios flash …
thats why setting em does nothing. Would be realy bad :frowning:

Also checked [TOOL] UniversalAMDFormBrowser
Same options, doesnt work