Is there any harm in permanently running my fans at maximum RPM?

[testtube5]

I have 4 3000RPM Noctua AF-A14s in my case and I'd like to run them on maximum 3000RPM permanently.

Am I going to burn the motor out doing this or can something else negative happen? (I do have a 6 year warranty but...I don't want any fires or anything=P)

I keep my computer running 24/7. I turn it off maybe once a month.

I don't care about noise whatsoever. In fact, I'm tired of hearing the ups and downs in RPM. I like to sleep with constant white noise. (I already know what they sound like at 3000RPM)

 

[Greeko85]

Just like any device with a moving part it will wear out quicker. Will it damage anything? I highly doubt it, you may start hearing weird noises once they start going bad and eventually they'll die but thats pretty much it.

 

[Zerk2012]

Their designed to run full speed should last just as long as if you lower the voltage.

 

[testtube5]

I have another question while I'm here...

Is there any reason my fans, when set to max speed - are only spinning at 2300RPMish when they're rated for 3000RPM?

Is that the voltage?

 

[Aeacus]

Try using multiple sources to confirm the fan speed since not all programs and BIOSes display the correct RPM value.

As far as the RPM of NF-A14 industrialPPC-3000 PWM fans go and at full 12V, max RPM falls between 2700 RPM and 3300 RPM, according to the fan specs, Rotational Speed (+/- 10%),
specs: https://noctua.at/en/nf-a14-industrialppc-3000-pwm/specification

Oh, the warranty of 6 years is considered as if you run the fan 24/7, so no worries there.

 

[testtube5]

Try using multiple sources to confirm the fan speed since not all programs and BIOSes display the correct RPM value.

As far as the RPM of NF-A14 industrialPPC-3000 PWM fans go and at full 12V, max RPM falls between 2700 RPM and 3300 RPM, according to the fan specs, Rotational Speed (+/- 10%),
specs: https://noctua.at/en/nf-a14-industrialppc-3000-pwm/specification

Oh, the warranty of 6 years is considered as if you run the fan 24/7, so no worries there.

I am using a fan splitter for my 2 140mm Radiator Fans plugged into CPU1.

It is detected as 1 fan (expected) but is consistently running 200RPM lower than the same exact fan plugged by itself into CHA1. (Same settings for both in BIOS)

Does (or could) a fan splitter reduce voltage / RPM?

 

[Aeacus]

Using fan spiltter does reduce voltage a bit. It isn't as noticeable when using e.g 1500 RPM fans where the loss of max RPM is small but it's more noticeable on high speed fans, e.g 3000 RPM. Hence the 200 RPM difference.

If your case has external 5.25" drive bay then you can buy fan controller where each fan has it's own channel. I have external fan controllers in use in all my 3 PCs: Skylake, Haswell and AMD (full specs with pics in my sig).
Or buy molex to fan adapters and plug your fans directly to your PSU so that they would run 100% all the time.

 

[testtube5]

Yep, I have plenty (too many actually) spots to plug fans in. I only used the splitter because it ended up looking nicer when I finished the build =P. But that's good to know that I'm sacrificing performance for aesthetics. Super useful piece of information.

Going to rearrange them tomorrow and get rid of the splitter. I want maximum cooling and nothing more.

Thanks =)