Which Header or Adapter Should I Use for My AIO Pump?

August 25, 2026 1 answer
Asked by MellowPine47
I'm finishing a build with a Vetroo V360 liquid CPU cooler and an MSI MAG B850 TOMAHAWK MAX WIFI motherboard. The cooler is installed, but I'm stuck on the pump wiring. The pump cable appears to be a four-position connector with one position missing, and I'm not sure whether I need a mounting adapter or a specific cable adapter to connect it safely. What should it plug into on the motherboard?

Answers

OrbitingKite8
If the cooler was purchased new, the AM5 mounting hardware should be included in the box, so you probably donโ€™t need to buy a separate bracket. For the wiring, the pump connector should go to the motherboardโ€™s AIO_PUMP or PUMP_FAN header. A connector with one position missing can be normalโ€”it may simply be a 3-pin pump plug housed in a 4-position connector, or a keyed connector. Line it up with the headerโ€™s plastic guide and donโ€™t force it. The radiator fans should generally connect to CPU_FAN or the included fan hub, depending on the coolerโ€™s instructions.

MellowPine47: That makes more sense. I was asking about the wiring rather than the mounting bracket. Iโ€™ll check the connector key and the AIO_PUMP header instead of trying to buy an adapter.

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