Severe CPU throttling on developer laptops due to thermal issues

Hi @Felduv Garnat

Be cautious about changing the BIOS fan curve before you determine whether this is a hardware cooling issue, a firmware/OEM thermal-policy issue, or simply the expected thermal limit being reached under sustained compilation workloads.

Windows doesn't provide a universal fan-curve configuration for laptops. Thermal management can use ACPI-defined cooling, but manufacturers can also implement proprietary fan control through firmware, embedded controllers, and OEM drivers. In those systems, the laptop manufacturer ultimately defines the fan profile and temperature thresholds.

First, check whether the affected laptops are the same manufacturer/model and BIOS version. If they are, update the BIOS/UEFI, chipset/platform drivers, and the manufacturer's thermal/power-management software using the OEM's enterprise-supported packages.

Also confirm that this is genuinely thermal throttling rather than CPU utilization alone. Windows can reduce processor performance when it reaches thermal limits; this is intentional protection against overheating.

You can capture the current Windows power configuration with:

powercfg /qh > power-settings.txt
powercfg /getactivescheme

and compare it with an identical machine that doesn't exhibit the problem. Windows processor power-management settings influence CPU performance and power consumption, but they don't replace the OEM's firmware-level thermal controls.

Also, test one affected laptop on AC power with the OEM-recommended performance/thermal profile and check whether the fans actually reach their expected RPM under sustained load. If the CPU temperature rises immediately while fan response is abnormal, that points more to firmware, the fan, the heatsink/airflow, or another hardware cooling issue.

If all machines of the same model behave identically, however, don't assume a more aggressive fan curve will solve it. Sustained compilation can exceed what a thin laptop's cooling system can dissipate continuously. In that case, the OEM should confirm the supported thermal profile and whether a BIOS/EC firmware update is available.

Don't manually modify ACPI thermal tables, disable thermal protection, or raise CPU temperature limits. Thermal throttling is a protection mechanism; defeating it can create reliability or hardware problems.

If you can provide the manufacturer/model, CPU, BIOS version, Windows 11 build, peak CPU temperature and clock speed before/after throttling, we can narrow down whether there is a known OEM firmware issue or whether Windows power-management tuning would help.

References:

Thermal management design guide

Processor power management options

Thermal management in Windows

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