What fan header should I plug in my AIO Cooler Pump?
17 hours ago, PCGuy7 said:That makes sense. I tried the System Pump, Same 1800 RPM. Would you know what the normal RPM would be for an AIO?
I wasn't sure so I did some quick research...here is a good post from Tom's Hardware forms:
QuoteUnless specified as a variable speed pump (common on fractal design and nzxt Kraken), you should run aio pumps at full 12v. This generally means the pump rpm will be anywhere from @1200rpm to almost 4000rpm depending on the pump, so 1600rpm sounds about right. You should also take note of the wiring, the connector means nothing but placement, depending on the aio, the pump could have 2 wires or 3 wires. It'll run DC analog voltage. Most of the larger or higher end designs use Sata power for the actual pump/fans power needs, directly from the psu, they'll use only the tach/ground wires from the motherboard header, just to read pump rpm and to satisfy motherboard needs for cpu_fan header population. Cheaper/smaller aios will run 3 wire and draw power for the pump from the mobo header. So you will see 4pin connectors, but have only 2-3 wires. None use pwm as that's a switched source, continuously turning the pump on and off. This'll cause sound in the pump as back pressure takes longer to roll around the tubing/radiator than the on/off cycle of the pwm. In bios, whatever header the pump is using (if it's header powered) should have any q-fan or other eco settings disabled and duty cycle set at permanent 100%. Fans, run as you please, but with aio pump flow as characteristically low as it is, full speed is recommended
So it looks like it could be normal to run at that RPM and not be variable but I am no expert...it may be worth while to look and research your specific AIO to see if it is the same way as quoted.
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