nVidia GTX 1060, 1080 both I can not see supported core clocks by 'nvidia-smi'

overclocking
nvidia

#1

nVidia GTX 1060, 1080 both I can not see supported core clocks using ‘nvidia-smi’ command which is needed to know before I overclock them.
When I type in the terminal ‘nvidia-smi -i 0 -q -d SUPPORTED_CLOCKS’, it produces
==============NVSMI LOG==============

Timestamp : Fri Oct 12 09:59:08 2018
Driver Version : 396.54

Attached GPUs : 2
GPU 00000000:06:00.0
Supported Clocks : N/A

I searched in the internet about this matter and then what I found was “downgrade nVidia drivers by reinstallation” since current nVidia driver does not support ‘nvidia-smi’.

However, if I downloaded and reinstalled them all forcibly removing current nVidia GPU drivers, I worry about spoiling the integrity HiveOS gives: this is how all the software works.

And the menu in HiveOS says only one preset of input values of core clock in MHZ. But all available GPUs commonly have 7 to 14 presets in the core switching between them depending on the load. By this reason, how can I handle this menu on HiveOS? I can not see if it will actually work for the overclocking.

I used to overclock and undervolt in linux command line only, not in GUI style. confused and at a loss.

PS. I have 4 AMD GPUs in the same rig which i have no such problem yet. Bizarrely enough, nVidia has gone more tricky on HiveOS.