I am testing all the fans I plan to use, before I void the warranty on them
I was hoping to run eight of the EK Vardar F3-140ER fans on each Aquaero channel, however eight is just too much. With eight fans on one channel they start spinning, then just shut down, and I get an over current warning on the Aquaero.
Six of the fans work fine on one channel, so I am testing the fans six at a time. I still have the screws in the radiators from painting them, so I took out the top screws of two radiators, and left the bottoms ones in to keep the radiators elevated so the fans will work more like in the case.
Here's the test bench, with just a power supply, an Aquaero, and a splitty fan splitter.
I am starting them out at 100% power then slowing them down as slow as they will go, and then ramping back up to 100% power. I am just checking to make sure all the fans are working good and quiet, with no obvious problems. I get through 30 fans, all nice and quiet. Then on the last two 140mm fans I’m testing I hear something, not real loud, but one fan definitely had some noise compared with all the others. I swapped it out with a spare and no more noise. So out of 35 fans tested, got one bad one I’ll have to RMA.
Next I want to test my RPM range with six fans, four fans and one fan per Aquaero channel. Here’s a spread sheet I made that shows the RPMs as well as the Volts, Amps, and Temps reported on the Aquaero. I’m showing 100% and 35% power on all the fans, as 35% is probably as low as I’ll go. Also showing the lowest power% for each fan before it’s either too low or stops spinning. The Aquaero is set for PWM control not voltage control.
My previous favorite 140mm PWM fans were the Noise Blocker PK-PS fans, so I included that for comparison. I will also be using two EK F4-120ER fans in this build, and have included those as well.
Here's a picture with a spare Noise Blocker on the left next to an EK Vardar for comparison. You can see how much bigger the hub is on the EK fan.
Here’s a spread sheet of the entire RPM range of both EK fans. Six fans per channel on the 140mm fans, and two fans per channel on the 120mm fans. This was done with different fans than the above spread sheet so you may notice the RPMs are slightly different.
I am really impressed with these fans! Under 800 RPMs you can barely hear them, and under 600 RPMs I can’t hear them at all even close up. I am amazed at how low the RPMs can actually go on these fans.
All fans now tested and ready for the next step