Fan Control and Options
Fan Type | Range | Interval |
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CPU Fan | 0 ... 100 | 1% |
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System Fan | 0 ... 100 | 1% |
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Fan speed is controlled by temperature, actual minimums depend on fan ability.
There are five 4-pin fan headers on the ASRock X299 Extreme4. The secondary CPU fan header and one of the system fan headers are ready for water-pump control for your AIO cooler, with a total power output of 18W possible (1.5A) from those two specific headers. The other headers only offer support for 12W of power draw (1A). All the ports, including the PS/2 ports, are driven by the Nuvoton NCT6781D Super I/O controller shown above.