120mm Fan Testing on an MCR120 Radiator Round 6

[jalyst]

SNIP.

Thanks for all your thoughts, I actually do realise all this....
But that doesn't stop me wanting to try one of 5400RPM's+, just to see how it sounds at 1000RPM.
If it's bearable it'd be nice to keep it at that speed, & ramp-it-up when going for big OC's.
Again, I do realise that there's a certain point where the volume of air hitting the rad. makes no difference.
In fact the particular rad. I'm using is specifically optimised for much lower noise/cfm fans.
So the improved cooling, compared to the increased noise, will be very minimal...
But that doesn't stop me wanting to see what sort of improvement I can actually get.
Plus if the fans become a mainstay, I can always change the Rad. used.....

I don't suppose you're able to answer the question which provoked this response of yours?
Much appreciated if you can!

i agree it, would be nice to have a little more power than the AP15 is delivering:
so i think the most interesting models are the 2150rpm and probably the 3000rpm versions with PWM control. unfortunately there is nobody selling them right now - at least i was not able to find somebody.

so i contacted nidec servo, well in fact it'is the european distributor, regarding this fans. had the idea of ordering them and distributing the fans for all of us.

what i got so far:
nidec produces this fans for the oem market, where nidec manufactures the fans at customers specs. usually the order volume is some 10k pieces!
scythe orders the fans from nidec in volumes of 50k units thus gets a decent price.

I'm surprised by this....
From communications I've had with them so far, many 'standard models' are available, alas their not always readily available in NA or Europe.
You seem to be talking about the 'custom models' they also make, to meet specific requirements of their customers.
But the 2150 and 3000 standard models don't fall into that category...