Error? Why don't I take the overclocking value placed on HiveOs? Rx 580 8GB Sapphire Pulse

Hello how are you?

I’m writing here to see if they can help me, I’m mining with the HiveOS operating system, I have a 12 GPU RX 580 8GB Sapphire Pulse rig.

The downside is the following:

I want to lower the VDD to 870Mv using the oc profiles to lower the temperatures of the graphs but it does not allow me to always have the factory value of 900Mv. The GPUs have bios mod polaris one click.

Is there a way to do it?

PD:

I already shut down the rig and rebooted it several times and it does not change the value in the amd-info command.

The Gpu have Bios Mod Polaris Oneclick.