7 hours ago7 hr Corsair's iCUE software is Windows-only, so if you've got a Corsair digital PSU in your server you get no monitoring and no fan control at all. I wanted both, so I built this. What it does - Live per-rail voltage, current and power for +12V, +5V and +3.3V - Total power out, estimated power in, efficiency and load - VRM and case temperatures, fan RPM - Every reading has a running min/max and a live sparkline - Fan control: hand it to the PSU firmware, hold a fixed duty, or drag out a custom curve. Presets for Quiet, Balanced, Performance and Max - +12V OCP single/multi rail toggle — single rail means fewer nuisance trips when several drives spin up together - Text size control, since not everyone's running the same size monitor Supported PSUs (model is detected automatically) HX750i, HX850i, HX1000i, HX1000i (2022), HX1200i, HX1200i ATX 3.1, HX1500i, RM650i, RM750i, RM850i, RM1000i An unrecognised Corsair digital PSU still gets full sensor readings and fan control — only efficiency and load% are hidden, since those need model-specific data. It shows n/a rather than making a number up. How it works Sensors come from the in-kernel corsair-psu hwmon driver, so polling costs no USB traffic and can't collide with anything else. The only writes to the PSU are fan duty and OCP mode, and only when you click something. One thing worth knowing: these PSUs can't store a fan curve in firmware — they only accept a fixed duty. So custom curves are driven from Unraid by a small service that re-applies duty from PSU temperature every 10s. That's exactly what iCUE does on Windows. Minimum duty is 30%. It's self-contained — bundles the Python modules it needs, so there's no pip step and no internet needed at install or boot. Uninstall removes everything and hands the fan back to the PSU firmware. Install It's in Community Applications — search for "Corsair PSU Center" in the Apps tab. Or manually, Plugins → Install Plugin → https://raw.githubusercontent.com/racoutlaw/corsair-psu-center/main/corsairpsucenter.plg Then open the CorsairPSUCenter tab. Fair warning on testing I've only got an HX1000i, so that's the only model tested on real hardware, on Unraid 7.2.7. The other eleven share the same detection path and should work, but "should" is doing some heavy lifting there. If you've got a different HXi or RMi, I'd really like to hear whether it detects properly — especially whether the model name, wattage and efficiency look right. Source and issues: https://github.com/racoutlaw/corsair-psu-center Built on liquidctl (https://github.com/liquidctl/liquidctl), which does the hard part of talking to these PSUs. GPL-2.0. Mods: could this be moved to Plugin Support? trurl suggested this route in the Lounge.
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