High CPU temperature

[BS86]

@Spyro26

amd_pstate=passive

try changing to active (available since Kernel 6.3) and set the default behaviour to power or balance_power - power stands for powersaving here opposed to performance on the other side of the scale. Details on how to do that can be found here:

How to use AMD P-State in Linux

with Kernel 6.3, we can now set amd-pstate=active via Kernel boot parameter, passive still works. the default EPP mode is performance: cat /sys/devices/system/cpu/cpufreq/policy0/energy_performance_preference performance and the available ones can be checked with cat /sys/devices/system/cpu/cpufreq/policy0/energy_performance_available_preferences default performance balance_performance balance_power power those sysfs parameters can then be changed like every other sysfs interface (be aware…

with that, and AMD ECO Mode activated in BIOS, I get very good temperature readings on my 7700X that are only above 80° when compiling stuff with a Alpenföhn Brocken 3 air cooler - no other config changes made.

Edit: I totally forgot that I also apply a dynamic undervolting on all cores with the AMD Curve Optimizer in BIOS. The values one can reach there heavily depend on the individual hardware lottery, and one could get more out of it when applying per core values, but I don’t have the time and all core -32 works fine here. (64 is max)