Kernel driver corsair-psu

Supported devices:

  • Corsair Power Supplies

    Corsair HX550i

    Corsair HX650i

    Corsair HX750i

    Corsair HX850i

    Corsair HX1000i (revision 1 and 2)

    Corsair HX1200i

    Corsair HX1500i

    Corsair RM550i

    Corsair RM650i

    Corsair RM750i

    Corsair RM850i

    Corsair RM1000i

Author: Wilken Gottwalt

Description

This driver implements the sysfs interface for the Corsair PSUs with a HID protocol interface of the HXi and RMi series. These power supplies provide access to a micro-controller with 2 attached temperature sensors, 1 fan rpm sensor, 4 sensors for volt levels, 4 sensors for power usage and 4 sensors for current levels and addtional non-sensor information like uptimes.

Sysfs entries

curr1_input Total current usage
curr2_input Current on the 12v psu rail
curr2_crit Current max critical value on the 12v psu rail
curr3_input Current on the 5v psu rail
curr3_crit Current max critical value on the 5v psu rail
curr4_input Current on the 3.3v psu rail
curr4_crit Current max critical value on the 3.3v psu rail
fan1_input RPM of psu fan
in0_input Voltage of the psu ac input
in1_input Voltage of the 12v psu rail
in1_crit Voltage max critical value on the 12v psu rail
in1_lcrit Voltage min critical value on the 12v psu rail
in2_input Voltage of the 5v psu rail
in2_crit Voltage max critical value on the 5v psu rail
in2_lcrit Voltage min critical value on the 5v psu rail
in3_input Voltage of the 3.3v psu rail
in3_crit Voltage max critical value on the 3.3v psu rail
in3_lcrit Voltage min critical value on the 3.3v psu rail
power1_input Total power usage
power2_input Power usage of the 12v psu rail
power3_input Power usage of the 5v psu rail
power4_input Power usage of the 3.3v psu rail
temp1_input Temperature of the psu vrm component
temp1_crit Temperature max cirtical value of the psu vrm component
temp2_input Temperature of the psu case
temp2_crit Temperature max critical value of psu case

Usage Notes

It is an USB HID device, so it is auto-detected and supports hot-swapping.

Flickering values in the rail voltage levels can be an indicator for a failing PSU. The driver also provides some additional useful values via debugfs, which do not fit into the hwmon class.

Debugfs entries

ocpmode Single or multi rail mode of the PCIe power connectors
product Product name of the psu
uptime Session uptime of the psu
uptime_total Total uptime of the psu
vendor Vendor name of the psu