#!/bin/bash

# overclock
# set -x

fan="76"
offset="180"

nvidia () {
DISPLAY=:10 nvidia-settings "$@"
}

X :10 &
Xpid="$!"
sleep 2
echo && echo "fans"
nvidia -a [gpu:0]/GPUFanControlState=1 -a [fan:0]/GPUTargetFanSpeed="$fan" \
-a [gpu:1]/GPUFanControlState=1 -a [fan:1]/GPUTargetFanSpeed="$fan" \
-a [gpu:2]/GPUFanControlState=1 -a [fan:2]/GPUTargetFanSpeed="$fan"

echo "clocks"
nvidia -a [gpu:0]/GPUGraphicsClockOffset[3]="$offset" \
-a [gpu:1]/GPUGraphicsClockOffset[3]="$offset" \
-a [gpu:2]/GPUGraphicsClockOffset[3]="$offset"

kill "$Xpid"