Translations:Undervolt intel CPU/23/en
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My quick look at linux-intel-undervolt-tool files and behaviour:
/usr/bin/undervolt # program written in python # if run without elevated right it give command to apply yourself with wrmsr # options: '-gpu', type=int, help='Undervolt GPU by this amount of millivolts. Must be negative.' '-cpu', type=int, help='Undervolt CPU by this amount of millivolts. Must be negative.' '-config', type=str, help='Config file to load. Other flags has priority over -config.' /etc/undervolt.json # contain voltage parameters "cpu" and "gpu" /usr/lib/systemd/system/undervolt.service # a systemd service enabled and started which restart after suspend/hibernate/hybrid-sleep with: -config /etc/undervolt.json /etc/modules-load.d/undervolt-msr.conf # load msr module at startup