ARCTIC S12038-4K - 120x120x38 mm server ventilator, 600-4000 rpm, PWM geregeld, 4-pins aansluiting, 12 V DC, bijzonder efficiënt - Zwart

J'ai une passion secrète pour les ventilateurs PC (chacun ses hobbies lol). Surtout les "38" comme ceux-là. On va dire qu'ils représentent une version contemporaine des Deltas et autres Sanyo Denky de la grande époque de l'air cooling des années 2000/2010. Pour ma part, je dispose dans ma collection de quelques reliques comme des scythes UltraKaze 2000, ainsi que des très gros 140 silverstone FHP 141. J'ai aussi une bonne dizaine de P12 de chez arctic en "25".Les S12038-4K sont intéressants parce qu'ils ont un très bon rendement, une plage d'utilisation de 600 à 4000 RPM et une conso de 0.33A soit env. 4W à 4000rpm. Il sont régulés en PWM. J'en ai acheté 3 que je fais tourner dans un corsair 5000D en extraction à 800rpm env. Leur rendement est suffisamment bon à cette vitesse, pour évacuer tout l'air chaud de ma tour en forte charge. Ils sont assez bruyants, mais à 800rpm le son est assez discret. Evidemment, à 4000rpm, le bruit n'est clairement pas adapté pour une station PC. En tout cas pour moi, c'est une sorte de mise à jour de mes anciens UltraKaze qui marchaient très bien depuis près de 10/15 ans de bons et loyaux services. Je ne regrette pas mon achat. Pour mon prochain montage je voudrais les mêmes en 140...

Ist ein echt klasse Lüfter, allerdings habe ich unterschätzt das er ab 2000 Umdrehungen doch recht laut wird. Aber dafür kann der Hersteller und der Lüfter nichts. Habe mir halt den falschen ausgesucht.Was ich allerdings sehr bemängeln muss, das ich über meine Boardsoftware (GIGABYTE X870 Gaming WIFI6) unter Windows 11 nur 5 Lüftereinstellungen vorauswählen kann. Diese regeln dann die Lüfter automatisch (Leise, Normal, Full Speed und Manuell). Leider kann man unter "Manuell" nicht individuell die Lüfterdrehzahl begrenzen, denn dann hätte ich diesen Lüfter so begrenzt, das er nur max. 2000 Umdrehungen macht, geht aber nicht. Darum habe ich ihn wieder ausgebaut. Boardhersteller sollten so etwas endlich mal in ihrer Lüftereinstellsoftware ermöglichen, dann wäre alles gut.Fazit: Lüfter klasse, Lüfterkonfigurationssoftware vom Board mangelhaft.

You know how autistic people sometimes have unusual fixations? One of mine is computer fans. My collection numbers in the hundreds, spans about 30 years, and includes everything from no-name Chinese manufacturers to industrial giants like EBM Papst and Sanyo Denki. And on the basis of that experience, I am telling you, the ARCTIC S12038-4K makes a very strong case for itself as the ideal computer fan.Important Break-In Notice:These fans require a break-in period. None of my six units would run below ~1000rpm or exceed ~3400rpm during the first 50 hours. They have extremely tight bearings that need time to loosen up. Run them at around 2000rpm for about 100 hours and that'll get them operational through most of their control range. They'll eventually reach or exceed the full 600-4000rpm specification; my highest-hour unit runs down to about 450rpm now.Noise Performance:➤ Below 1200rpm: Nearly silent. I have one installed in a Hyte Y70 as an exhaust fan 18 inches from my head; it's inaudible over normal household noises like the HVAC system, and even when everything else is off I have to specifically listen for it to notice it. There's a very slight "clicky growl" characteristic of high-speed brushless DC motors, but it's quieter than the switches on my mechanical keyboard. And no, they're not clicky switches!➤ 1200-2000rpm: Smooth white noise from moving air, notably less motor noise than other high-speed fans.➤ Above 2000rpm: Increasingly audible, but still predominantly wind noise rather than motor noise. Let's be honest though – no 120mm fan running above 2000rpm is quiet.The key takeaway: Treat them as very high performance, high-pressure 1500rpm fans that can ramp up past that when needed to give you extra headroom for hot days, A/C failures, fan failures, and so on.Also note that these observations are made in free air; when the fan is installed in a case, other components like fan grills or the mounting tabs can influence these results far more than the actual fan itself. An overlap of just a few mm on the intake side, with the right spacing, can set up awful harmonics that will drive you nuts—but that's your case, not the fan. The solution is to use a fan spacer, remove the fan grill, etc., as required.Thermal Performance:There are too many variables in any cooling setup to dive into exhaustive benchmarks in an Amazon review. If you want to know exactly how a specific fan will perform in a specific situation, you need the P/Q curve (which Arctic thankfully provides) and the knowledge to apply it to your scenario.What I can tell you confidently: these push more air at higher pressure than anything I'm aware of from Noctua or Corsair or other consumer brands, and they will perform accordingly. The 38mm thickness and flow straighteners give them a significant advantage over standard 25mm fans, particularly when working against restrictions like radiators or tight case openings.Notable Features:➤ Hub Cooling System — A small fan built into the hub cools the motor, significantly extending fan lifespan. Arctic thoughtfully includes a sticker to block it off in dusty environments.➤ Flow Straighteners — These fixed blades on the output side straighten the airflow, delivering higher static pressure compared to fans without them. The improvement is particularly substantial when compared to standard 25mm thick fans.➤ Power Efficiency — Unlike similar high-speed fans from Delta or Sanyo Denki that draw too much power for standard motherboard headers, these stay comfortably within the 1A limit (specified at 0.6A).➤ Professional Documentation — Arctic provides P/Q curves with these fans. This is standard practice for industrial fans, but almost never included with consumer products. Most manufacturers make vague claims without this crucial data (even Noctua has declined my requests for P/Q curves), making it difficult to evaluate how their products perform against their competition. This transparency proves Arctic is serious about catering to people who engineer thermal solutions professionally.Value & Recommendation:These fans offer exceptional value compared to industrial alternatives while being quieter, using less power, and maintaining excellent build quality. They outperform premium consumer brands in airflow by a wide margin while maintaining reasonable noise levels.If you can accommodate the 38mm thickness, have the patience for proper break-in, and want high performance with acceptable noise levels rather than absolute silence, you've found your ideal fan.Bottom Line:Highly, highly recommended—provided you're willing to let them break in and you set up intelligent fan curves. Treat them like 1500-2000rpm fans with headroom for emergencies, and you'll find their noise-to-performance ratio outstanding.

Needed a super high performance fan that could run on a standard motherboard header without exceeding the 1A limit, these were perfect, they move tons of air but they are also very loud as expected, even at low speeds they have some noise, but they are not intended for gamer builds that sit on your desk, these are for servers where they can run at top speed comfortably

Arrivata con perdita importante di olio e grippata.Restituita.