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asetek-690lc-guide.md

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Asetek 690LC liquid coolers

Driver API and source code available in liquidctl.driver.asetek.

Several products are available that are based on the same Asetek 690LC base design:

  • Current models:
    • EVGA CLC 120 (CLC12), 240, 280 and 360
    • Corsair Hydro H80i v2, H100i v2 and H115i
    • Corsair Hydro H80i GT, H100i GTX and H110i GTX
  • Legacy designs:
    • NZXT Kraken X40, X60, X31, X41, X51 and X61

Note: a custom kernel driver is necessary on Windows (see: Installing on Windows).

Note: when dealing with legacy Krakens the --legacy-690lc flag should be supplied on all invocations of liquidctl.

Initialization

All 690LC devices must be initialized sometime after the system boots. Only then it will be possible to query the device status and perform other operations.

# liquidctl initialize

Device monitoring

Similarly to other AIOs, the cooler can report fan and pump speeds as well as the liquid temperature.

# liquidctl status
Asetek 690LC (assuming EVGA CLC)
├── Liquid temperature        28.7  °C
├── Fan speed                  480  rpm
├── Pump speed                1890  rpm
└── Firmware version      2.10.0.0

Fan and pump speed control

Fan speeds can be configured either to fixed duty values or profiles. The profiles accept up to six (liquid temperature, duty) points, and are interpolated by the device.

# liquidctl set fan speed 50
# liquidctl set fan speed 20 0 40 100

Note: fan speed profiles are only supported on non-legacy models.

Pump speeds, on the other hand, only accept fixed duty values.

# liquidctl set pump speed 75

Lighting modes

There's a single lighting channel logo. The first light mode – 'rainbow' – supports an abstract --speed parameter, varying from 1 to 6.

# liquidctl set logo color rainbow
# liquidctl set logo color rainbow --speed 1
# liquidctl set logo color rainbow --speed 6

Note: the 'rainbow' lighting mode is currently only supported by EVGA units.

The 'fading' mode supports specifying the --time-per-color in seconds. The defaults are 1 and 5 seconds per color for, respectively, modern and legacy coolers.

# liquidctl set logo color fading ff8000 00ff80
# liquidctl set logo color fading ff8000 00ff80 --time-per-color 2

The 'blinking' mode accepts both --time-per-color and --time-off (also in seconds). The default is 1 second for each, and whenever unspecified --time-off will equal --time-per-color.

# liquidctl set logo color blinking 8000ff
# liquidctl set logo color blinking 8000ff --time-off 2
# liquidctl set logo color blinking 8000ff --time-per-color 2
# liquidctl set logo color blinking 8000ff --time-per-color 2 --time-off 1

The coolers support two more lighting modes: 'fixed' and 'blackout'. The latter is the only one to completely turn off the LED; however, it also inhibits the visual high-temperature alert.

# liquidctl set logo color fixed 00ff00
# liquidctl set logo color blackout

On most models, alerts are always enabled, unless suppressed by the 'blackout' mode: the default threshold and color are, respectively, 45°C and red. It is possible to configure the visual alert for high liquid temperatures:

  • --alert-threshold <number>: set the threshold temperature in Celsius for a visual alert;
  • --alert-color <color>: set the color used by the visual high temperature alert.

Note that alerts are reportedly not supported by the oldest models, the NZXT Kraken X40 and X60 (see #477).

Save settings to device

New in 1.9.0.

Use the --non-volatile option on a set command to save the current values of all settings (pump speed, fan cruve, and light mode) to the device's on-board flash memory:

# liquidctl set logo color blackout
# liquidctl set pump speed 75
# liquidctl --non-volatile set fan speed 50

Flash write-cycles are limited so avoid using --non-volatile on every command.

Note: non-volatile settings are only supported on non-legacy models.