So, THAT is where you can "see" the pump speed, even though the BIOS Setup screens will tell you it is the CPU Fan speed. For these AIO systems, the actual device whose speed is being sent to the CPU_FAN header is the PUMP unit. This is a precautionary measure to ensure that the CPU chip cannot overheat if its cooling system fails. Its main function is to send back to that header a speed signal, and that it important! Many mobos monitor the speed of whatever is plugged into the CPU_FAN header carefully, and will send out alarms and often take drastic action if there is no speed signal there. One is a common female fan cable (often 3-pin) that you are directed to plug into the CPU_FAN header. In each, there is a pump module that is mounted on the CPU, and has four connection cables attached to it. If can only know what is the speed of whatever it is you plugged into the CPU_FAN header, and it will always tell you that this "whatever" is the CPU fan, whether it is or not.īoth the Kraken X62 and the SOME of the Corsair AIO systems have a similar structure and functions. The BIOS has no magic way of knowing which thingie in your system is a radiator fan or a cooler pump. For starters, note that the "Speed" of whatever, is the speed of the device plugged into that fan header. You need to understand what is doing which functions in these systems.
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