Update: I tried the https://review.coreboot.org/c/coreboot/+/42547/ on my T430 (i7-3840QM, Debian Buster 4.19.0-9-amd64) using coreboot v4.12 + SeaBIOS as base.
I used s-tui to track the CPU frequency.
Without the patch on coreboot v4.12 the CPU reached its "usual" 3.3 - 3.4 GHz (4C/8T) using the stress function of s-tui.
With the patch the CPU reached at most 3.2GHz (intel_pstate) / 2.8GHz (acpi-cpufreq).
Maybe there is an issue with mobile CPUs?
On 24.06.20 20:00, Lars Hochstetter wrote:
Hi, thanks for the pointer!
I only fear that running my CPU at the maximum possible Turbo Ratio will overheat it.
I can give it a try but I'm actually looking for an option to limit the maximum Turbo Ratio the CPU is allowed to reach (hence the disabling of TurboBoost altogether).
On 21/06/2020 00:52, Evgeny Zinoviev via coreboot wrote:
Hi again. There's another patch that fits to the topic that you will probably want to try out: https://review.coreboot.org/c/coreboot/+/42547/
On 12/15/19 3:57 PM, Lars Hochstetter wrote:
Hi everyone,
I'm looking for an option to configure my Intel IvyBridge CPU (enable / disable Hyperthreading, TurboBoost, set configurable TDP level etc.) using coreboot / nvramcui. My board is a Lenovo Thinkpad T430. So far, "only virtualization" is configurable and can not be enabled / disabled "in flight" but requires a rebuild of coreboot.
Is anyone currently working on something similar?
Is anything planned in that regard?
Kind regards
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