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ipmi-fancontrol
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add fancontrol with power input 

uses corsairs hid psu sensor for power, to me it seemed logical that more power = more sys fan speed
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"Riku" 2024-12-07 10:46:13 +02:00
parent 16ea60a4fb
commit 4ce779db0d
1 changed files with 124 additions and 0 deletions
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power-fancontrol.pl 100644
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#!/usr/bin/perl
# notable changes: this uses corsairpsu power to adjust sys fans, see line
# 59 onwards on re: how to adjust the used sensor.
use strict;
use warnings;
use List::Util qw[min max];
my $min_temp_change = 3; # °C minimum change to actually cause a fan speed update
my $min_power_change = 30; # W, minimum change to do something
my $seconds_to_sleep = 4; # Number of seconds to sleep between update loops
# 0x64 = 100, 0x00 = 0.
# CPU Temp -> Fan Speed Mappings
my %cpu_temp_to_fan_speed;
$cpu_temp_to_fan_speed{80} = 0x64;
$cpu_temp_to_fan_speed{75} = 0x62;
$cpu_temp_to_fan_speed{70} = 0x56;
$cpu_temp_to_fan_speed{65} = 0x52;
$cpu_temp_to_fan_speed{60} = 0x48;
$cpu_temp_to_fan_speed{55} = 0x46;
$cpu_temp_to_fan_speed{50} = 0x42;
$cpu_temp_to_fan_speed{45} = 0x40;
$cpu_temp_to_fan_speed{40} = 0x36;
$cpu_temp_to_fan_speed{35} = 0x34;
$cpu_temp_to_fan_speed{30} = 0x32;
# SYS Power -> Fan Speed Mappings
my %sys_power_to_fan_speed;
$sys_power_to_fan_speed{550} = 0x64;
$sys_power_to_fan_speed{525} = 0x62;
$sys_power_to_fan_speed{500} = 0x60;
$sys_power_to_fan_speed{475} = 0x56;
$sys_power_to_fan_speed{450} = 0x54;
$sys_power_to_fan_speed{425} = 0x52;
$sys_power_to_fan_speed{400} = 0x50;
$sys_power_to_fan_speed{375} = 0x46;
$sys_power_to_fan_speed{350} = 0x44;
$sys_power_to_fan_speed{325} = 0x42;
$sys_power_to_fan_speed{300} = 0x38;
$sys_power_to_fan_speed{275} = 0x36;
$sys_power_to_fan_speed{250} = 0x32;
$sys_power_to_fan_speed{225} = 0x30;
$sys_power_to_fan_speed{200} = 0x30;
$sys_power_to_fan_speed{175} = 0x30;
$sys_power_to_fan_speed{150} = 0x30;
$sys_power_to_fan_speed{125} = 0x30;
$sys_power_to_fan_speed{100} = 0x30;
my $g_current_sys_fan_duty_cycle = 0;
my $g_current_cpu_fan_duty_cycle = 0;
my $g_current_cpu_temp = 0;
my $g_current_sys_power = 0;
my $g_last_set_cpu_temp = 0;
my $g_last_set_sys_power = 0;
sub UpdateFanSpeed {
my $current_cpu_temp = `sensors k10temp-pci-00c3 | grep 'Tctl:' | cut -c 16-17 | tr -d '\n'`;
my $current_sys_power = `sensors \$(sensors |grep corsairpsu) | grep 'power total:' | cut -c 14-16 | tr -d '\n'`;
my $cpu_temp_difference = 0;
my $sys_power_difference = 0;
$g_current_cpu_temp = $current_cpu_temp;
$g_current_sys_power = $current_sys_power;
my $desired_cpu_fan_speed = 0x0;
my $desired_sys_fan_speed = 0x0;
my @cpu_temps = keys %cpu_temp_to_fan_speed;
for my $cpu_temp (@cpu_temps) {
if( $current_cpu_temp >= $cpu_temp ) {
$desired_cpu_fan_speed = max( $cpu_temp_to_fan_speed{ $cpu_temp }, $desired_cpu_fan_speed );
}
}
my @sys_powers = keys %sys_power_to_fan_speed;
for my $sys_power (@sys_powers) {
#for my $sys_temp (@sys_temps) {
if( $current_sys_power >= $sys_power ) {
$desired_sys_fan_speed = max( $sys_power_to_fan_speed{ $sys_power }, $desired_sys_fan_speed );
}
}
if( $desired_cpu_fan_speed == 0x0 ) {
print "\n***** ERROR: Failed to determine a desired fan speed. Forcing CPU fans to 100% duty cycle as a safety fallback measure. *****\n";
$desired_cpu_fan_speed = 0x64;
}
if( $desired_sys_fan_speed == 0x0 ) {
print "\n***** ERROR: Failed to determine a desired fan speed. Forcing SYS fans to 100% duty cycle as a safety fallback measure. *****\n";
$desired_sys_fan_speed = 0x64;
}
$cpu_temp_difference = $g_current_cpu_temp - $g_last_set_cpu_temp;
$sys_power_difference = $g_current_sys_power - $g_last_set_sys_power;
if( (abs $sys_power_difference) > $min_power_change ) {
print "(SYS) Power change of $sys_power_difference W, current $g_current_sys_power W, fan speed set to $desired_sys_fan_speed %\n";
$g_last_set_sys_power = $g_current_sys_power;
$g_current_sys_fan_duty_cycle = $desired_sys_fan_speed;
`ipmitool raw 0x30 0x70 0x66 0x01 0x00 $desired_sys_fan_speed`;
}
if( (abs $cpu_temp_difference) > $min_temp_change ) {
print "(CPU) Temp change of $cpu_temp_difference °C, current $g_current_cpu_temp °C, fan speed set to $desired_cpu_fan_speed %\n";
$g_last_set_cpu_temp = $g_current_cpu_temp;
$g_current_cpu_fan_duty_cycle = $desired_cpu_fan_speed;
`ipmitool raw 0x30 0x70 0x66 0x01 0x01 $desired_cpu_fan_speed`;
}
}
print "Setting Fan mode to FULL SPEED.\n";
`ipmitool raw 0x30 0x45 0x01 0x01`;
while( 1 ) {
UpdateFanSpeed();
sleep $seconds_to_sleep;
}