CPU power management support has improved in 5.8. Better ACPI support and the drivers now use more lower-power C states.<p>&quot;acpicpu(4) uses ACPI C-state information to reduce power consumption of idle CPUs. &quot;<p><a href="http:&#x2F;&#x2F;www.openbsd.org&#x2F;58.html" rel="nofollow">http:&#x2F;&#x2F;www.openbsd.org&#x2F;58.html</a>