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
lhochstetter
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