Fan Control and Options

Fan speed is controlled by temperature, actual minimums dependent on fan ability.



The ASRock X299E-ITX/ac provides just three 4-pin fan headers, all of which are fully customizable from within the BIOS. Two of the ports can double up as water-pump headers (CPU_OPT and CHA_FAN), and you can easily tune each port to whatever device you have installed via the options in the BIOS. The manual specifies that the CPU_FAN header supports 12W (1A) and the CPU_OPT supports 18W (1.5A), but no information can be found about the CHA_FAN1 plug and its possible output. I do have the water pump of the Bitspower Leviathan Semi-AIO plugged into that CHA_FAN1 header without any problems to report on.


The fan ports (and monitoring duties) are cared for by the Nuvoton Super I/O chip above.