Which Tool can Unlock AMD Overclock Options on ASRock B550M-HDV?

BIOS/UEFI Modding BIOS Modding/Flashing Tools
1

Hey, I am trying to unlock some options in the AMD Overclock menu (AodSetupDxe) on my ASRock B550M-HDV, however I’m kind of at a loss currently.

In particular, I want to unlock DRAM VTT voltage control. Searching for “VTT” in UefiTool reveals the options do exist in AodSetupDxe, however they do not show up in the BIOS. The entire AMD Overclock menu doesn’t show up in AMIBCP either, so I can’t unlock those options through that.

I tried Smokeless_UMAF, however that gives me the same limited AMD Overclock menu found in the BIOS. I also tried setup_var.efi with the values found via UefiTool, but it couldn’t find it.

Any advice? I have only done some minor LGA 1151 BIOS modding before, where AMIBCP was all I needed for hidden options, so I’m a bit at a loss here with AM4.

Thanks!


Edit by Fernando: Thread title shortened

2

[TOOL] UEFI Editor - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum

and/or

[TOOL] UniversalAMDFormBrowser - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum

3

Thank you! The first option ended up working.

There were actually 3 instances of it, but I ended up patching all of them and that made it show up in the BIOS. I have yet to test if they work, as in affect the voltage at all, but I’m already happy with just seeing them.

Funnily enough, flashing the BIOS took longer than modifying it, due to the AGESA 1.2+ flash prevention and me only having a Cezanne APU, which requires 1.2+. I ended up picking up a 3200G nearby just to get around this by downgrading to pre-1.2 and then using flashprog from Linux.