Splitting hairs on Noctua fans

[jdcranke07]

Hey guys and gals,

I'm swapping out old case fans for new. Recommend Noctua NF-P12 or NF-F12?
I need 16 fans all of which are mounted on a total of 6 radiators in my custom loop. They're Alphacool rads and the thickest is 60mm, thinnest is 30mm.
The db ratings are the same, but the static pressure is different. Think I need high static pressure with on average 45mm thick rads?

 

[Motopsychojdn]

It all depends on what fpi your rads are, low fpi dont require highspeed high cfm fans, so spending a l9t on uberfans is often a waste when your cooling ability tops out at 30% fanspeeds, high fpi rads need a bit more oomph from the spinnies, oh and pics please, I want to see your case with 6 rads and the cables better be tidy hehe 🙂

 

[jdcranke07]

It all depends on what fpi your rads are, low fpi dont require highspeed high cfm fans, so spending a l9t on uberfans is often a waste when your cooling ability tops out at 30% fanspeeds, high fpi rads need a bit more oomph from the spinnies, oh and pics please, I want to see your case with 6 rads and the cables better be tidy hehe 🙂

I never could find FPI for the Alphacool rads, but they seem more on the high side. The back side need work, but the main cavity is pretty tidy. Will load pics in a bit.

 

[jdcranke07]

By the way, I did forget to mention what fans I have at the moment. I'm using non-LED Cooler Master SickleFlow 2000RPM fans and my loop is generally at just above ambient temps. That is unless I've been playing games or stress testing for OC stability.
I'm mainly looking for quieter fan operation. These current fans are not bad, but sometimes I just don't want to hear as much as I do.

 

[Motopsychojdn]

Tape measure on the rad, count how many fins there are per inch, fpi measurement complete 🙂
And look forward to pics hehe
Moto

 

[jdcranke07]

Well, I guess I typed the magic thing in Google this time. My rads are 8, 9, and 10 FPI.

Alphacool NexXxos Monsta 480: 9 FPI
UT60 360: 10 FPI
XT45 240(x2): 10 FPI
XT45 120: 10 FPI
ST30 360: 8 FPI

 

[Motopsychojdn]

Ok, you dont need new fans, you need a fancontroller 🙂 I could all but guarentee optimal cooling will be at around 30% fanspeed, any faster and its extra noise for no extra cooling
Moto

 

[jdcranke07]

Ok, you dont need new fans, you need a fancontroller 🙂 I could all but guarentee optimal cooling will be at around 30% fanspeed, any faster and its extra noise for no extra cooling
Moto

Would that still apply with my OC'ing? I do have my 4790K OC'd to 4.7Ghz and my two 780ti Classys are also OC'd a bit for now.

 

[jdcranke07]