I'm finishing a new PC 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 connecting the AIO pump. The pump cable looks like a four-position connector with one pin missing, and I'm not sure whether I need a separate adapter or which motherboard header it should plug into. What's the correct way to wire it?
1 Answer
If the cooler was purchased new, it should include the mounting hardware needed for an AM5 motherboard, so you probably don’t need to buy another bracket. For the wiring, a connector with one position empty is typically a 3-pin pump plug designed to fit onto a 4-pin motherboard fan or pump header. Line up the plug with the keyed guide and the missing pin, then connect it to the motherboard’s AIO_PUMP or PUMP_FAN header if available. Don’t force it into place. Afterward, check the BIOS and set that header to run at full speed or 100% so the pump stays powered.
That makes sense—I was describing the connector badly. It sounds like the missing pin is normal rather than an adapter requirement. I’ll align it with the pump header and check the BIOS settings instead of trying to force a different cable.