http://www.amazon.com/dp/B07C5VG64V/?tag=level1techs-20
This is a companion discussion topic for the original entry at https://level1techs.com/video/noctua-nf-a12x25-fan-review
This is a companion discussion topic for the original entry at https://level1techs.com/video/noctua-nf-a12x25-fan-review
Running 4 Noctua Redux fans (the grey ones) myself.
They build some amazing fans. Might pick up one of the A12x25 ones for my CPU cooler.
I have two of their 2000 RPM iPPC fans on my D15. I also have Fractal and Phanteks fans in my case, and the 2000 RPM fans are barely louder on 100% than the other 1500 RPM and 1250 RPM fans.
I think these 2000 RPM fans are their best ones, because the extra speed at the top end can move more air, but at their low end (~600 RPM) they are still inaudible like lower RPM fans at 300 RPM. I am curious how the Sterrox iPPC fans will perform.
If only they would make a fan with translucent blades and addressable RGB (like Corsair LL)…
Hell no!
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Why not? Having more competition and selection is a good thing.
https://forum.level1techs.com/t/the-hate-thread-just-fucking-hate/118609/2
How much more Rainbow puke do you want?
Noctua caters to professional and enterprice customers fighting guys like EBM Pabst and Delta Electronics. No need to get dirty with the plebs.
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So Noctua is leasing other companies fan design now?
http://www.nidec-servo.com/en/new_pop-1.html
I’ve had these fans for over 5 years… So I hope they have significantly improved the design. If not, they have released an old product you could already buy from other re-brands.
Is Noctua even designing their own products, like they have lead us to believe?
How do they compare to their old nf-f12 with regards to noise and performance? I currently have my whole system inside Fractal R5 filled with nf-f12 and have been using them for quite a bit, is there any point to upgrade?
https://noctua.at/en/nf-a12x25-technical-backgrounds
I think they do.
Developed a new plastic and have significantly higher glass fiber reinforcements (30%) in the blades.
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I’m still skeptical towards Noctuas claims. The blades on the original Gentle Typhoon has no flex or give in it’s blades. None at all. So unless the made the blades thinner, there is no reason to claim any technical advances. And if they do. betterment compared to what? The original the leased or ripped of?
And some of their marketing pictures looks fake to me. Not that I think they haven’t done testing.
Just from a pedantic point of view. Yes they absolutely do. All materials do. You could make them from titanium or basalt and they would still have flex, microscopic flex but still there. Elasticity is just a property of materials.
Not so say that gentle typhoons are not good fans and stiff too, I remember about 5 years ago they were very popular particularly with water cooling, but seem to be largely gone these days, or at least other fans have taken popular selection.
I had not heard gentle typhoon for many years until you mentioned them.
I think you misunderstand. Bladecreep in fans is not a short-term problem but a longterm one.
The 0.5mm clearance will close and grind the blades to a halt (if it does not burn out the motor prematurely).
“Normal” fans don´t have that problem as they have 2.5 to 4mm gab between blades and frame.
Buying someone elses patent is common practice since patents are a thing. As Noctua registered Sterox themself, I am fairly sure they developed the thing themselfs.
The motor might be brought (thinking Panasonic?).
Costs break down as follows:
Development
Molds (high glass fibre palstics wear out molds faster making the product much more expensive)
Brandnames
Packaging
Edit: Alstom makes steam turbines (I know, very different product). They have problems with blade creep during normal operation as the force at the blade socket gets up to 5.6t at nominal RPM stretching the CNC-ed molybdenum steel blades by several milimeters.
Some reading material on creep-resistant steels: https://www.imoa.info/molybdenum-uses/molybdenum-grade-alloy-steels-irons/high-temperature-steel.php
You are right about the flex and resonance. I was a bit to quick on the keyboard. What I was thinking, was that there already is suck low noise being produced by these fans, that I find it hard to see how big of an improvement they actually get from this.
On the other hand, they did change the fin design somewhat.
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Indeed. But I still don’t think they should present their product as if they are the sole designer of this product form, when you can find traces of this product in many other brands, predating Noctuas. Do Noctua even mention or hint any leased patents or collaborations?
What would be interesting to see, is whether or not reviewers who have reviewed the Gentle Typhoons and similar products, will mention the similarities?
Okay, here we go.
How many laws of physics are there?
One set!
There is no aestatics here. It is just optimize for the laws of physics at hand.
There is no need to mention patents. Brass bushings (like any other bearing material) is common EVERYWHERE.
Embrace the brown!!!
There are a total of 6 in my current rig.
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Going to wait for ThernalBench or GN tests before I have a full verdict. Previous Noctua fans have been good compared to generic fans, but pretty average compared to almost any other fan in their price point.
I understand what you mean, but do you honestly think that the Gentle Typhoon I.P. isn’t evolved in this case, at all?
Edit:
I mean, look at the marketing they did your their designs previously to their new one. They claimed, that their research and tests had pointed then in the specific design that they used prior to this new design.
Suddenly the “perfected design” based of years of research, changes from one generation, into a fan drastically different compared to their old research based design, and remarkably similar to another company’s design. That is a bit odd, don’t you think?
Also, EK have their Vardar fans looking very similar to Noctua’s fans, but also very similar to Gentle Typhoons.
Me too. 7 in mine. 2 on the D14 Cooler and I replaced the aging stock NZXT case fans that were starting to rattle with 5 more nocta fans. Not these ones in the review but the standard ones. The PC still makes noise and that is just the GPU at this stage, but it makes a much more pleasant noise. More like the background hum of the Enterprise than the starting of a diesel car at worst and a general slightly irritating noise at best from the old ones.
@wendell about your ThreadRipper 1950x overclock, is your system now also suffering from the sleep bug under windows? After overclocking my ThreadRipper to 4.1Ghz, my clock in Windows is off after resuming from sleep.