Fan speed and PWM question

Jony27

Jony27

Jony27

Soldato
Joined
15 Aug 2010
Posts
8,873
Location
N. Ireland
Hi all, just started thinking about the speed/RPM my Akasa Piranhas run at as above certain %, they do become audible.

I have all the fans(9 in total) connected via 4 pin headers on my motherboard, alebit on splitters.

Im wondering if I set the PWM to 40%, what is the actuall RPM the fans run at?

Website states that the fan speed range is 600-1900, so at 40% is it running at around 900RPM or around 1300RPM?

I ask as I mentioned that they get audible after a certain %, just not sure at what speed and I contemplated on getting thicker rads and running them on lower speeds.

Since my AX series rads shine at higher fan speeds compared to thicker rads with lower fpi.

Thanks
 
Yeah, running it on an MGV board using Fan Expert.
I have them at 40% but when it gets to 50% or higher, I can hear them.
Just checked Fan EXpert and I didnt know there were other options beloew on the right hand side, shows fan speed of CPU OPT at sub 900RPM, at 40%.
Thanks
 
Last edited:
I'll check the presets for the fans.
Yeah, I have my ddc pump connected to the Cpu fan header via a splitter along with 4 other piranha fans.
And it's showing 3900rpm :o
 
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