I got it how I like it.
Following
https://github.com/BeanGreen247/Linux_NVIDIA_GPU_Overclocking_Guide rather using GreenWithEmby that controls overclocks and fan control for one GPU.
sudo gedit /usr/bin/overclock0.sh
!/bin/bash
nvidia-settings -a '[gpu:0]/GPUGraphicsClockOffset[1]=75'
nvidia-settings -a '[gpu:0]/GPUGraphicsMemoryOffset[1]=0'
nvidia-settings -a '[gpu:0]/GPUMemoryTransferRateOffset[1]=0'
nvidia-settings -a '[gpu:0]/GPUFanControlState=1'
nvidia-settings -a '[fan:0]/GPUTargetFanSpeed=100'
nvidia-settings -a ‘[gpu:0]/GpuPowerMizerMode=1’
sudo gedit /usr/bin/overclock1.sh
!/bin/bash
nvidia-settings -a '[gpu:1]/GPUGraphicsClockOffset[1]=115'
nvidia-settings -a '[gpu:1]/GPUGraphicsMemoryOffset[1]=0'
nvidia-settings -a '[gpu:1]/GPUMemoryTransferRateOffset[1]=0'
nvidia-settings -a '[gpu:1]/GPUFanControlState=1'
nvidia-settings -a '[fan:1]/GPUTargetFanSpeed=100'
nvidia-settings -a ‘[gpu:1]/GpuPowerMizerMode=1’
sudo chmod +x /usr/bin/overclock0.sh
sudo chmod +x /usr/bin/overclock1.sh
Added
bash /usr/bin/overclock0.sh
bash /usr/bin/overclock1.sh
To startup in mint.