I'm having some issues with undervolting a rx470 nitro 8g oc. I followed this vid to add a voltage offset.

After opening the rom in srbpolaris, i can see the offset is detected as i can click the dropdown, but after flashing it, it has no effect whatsoever. I've tried it with the vddci mod as well, but the voltage does not change After flashing i used ddu to clean driver, had no effect either.

Changing gpu/mem clocks with srb works fine, so i'm not sure what the problem is..

This is my original voltage object:
This is my modded one:
I used lard's table calc to fix the offsets of all other tables. After doing this I compared the dumps from atombiosreader and saw that the length of the voltageobject indeed increased by 4 bytes, and all tables after have the same length but an increased  offset.

Can anyone explain what i did wrong?

This is my entire rom