# kitsunyan/intel-undervolt

Intel CPU undervolting and throttling configuration tool

Repository: https://github.com/kitsunyan/intel-undervolt
Canonical: https://ross.abutalabs.com/products/intel-undervolt
Language: C
License: GPL-3.0
License Family: copyleft
Topics: linux, intel, undervolt, tdp, temperature, 2518
Last push: 2023-08-24T08:43:55+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3137, "days_push": 1105, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1092, forks 71 (observed 2026-08-28T04:03:33.307050+00:00)

## What it is
A Linux CLI tool and daemon for undervolting Intel CPUs (Haswell and newer) and altering throttling limits such as package power (TDP) and temperature limits via reverse-engineered MSR access. It also supports switching HWP energy-versus-performance hints based on system load.

## Use cases
- undervolt my intel cpu on linux to reduce heat
- lower cpu temperature limit to stop thermal throttling
- change package power limits tdp on a laptop
- switch cpu performance vs battery mode automatically based on load
- apply ThrottleStop-style voltage offsets on linux
- run intel-undervolt as a systemd daemon

## When to choose
- you run Linux on an Intel Haswell-or-newer CPU and want undervolting or TDP/temperature limit control
- you want a lightweight C tool with systemd/OpenRC service integration
- you want automatic HWP hint switching for performance or battery life

## When to avoid
- you are on Windows (use ThrottleStop or Intel XTU instead)
- your CPU or BIOS blocks undervolting (locked MSR, newer Intel generations)
- you are unwilling to risk hardware instability from reverse-engineered MSR writes

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: developer-tools, configuration-management, monitoring
- domain: hardware, operating-systems, performance
- platform: cli
- tags: undervolt, intel-cpu, msr, throttling, power-management, cpu-tuning, systemd, command-line, linux

## Member repositories
- kitsunyan/intel-undervolt (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:33.307050+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:49:02.833917+00:00, confidence not recorded.
  - readme: https://github.com/kitsunyan/intel-undervolt (fetched 2026-08-28T04:03:33.307050+00:00, sha f56ef95c58e0)
- Data as of 2026-08-30T08:39:29.467469+00:00.