Noctua NF-F12 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

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You can also turn off fan sensors and (if the option exists) choose the [Disabled] mode on speed settings. Another thing to keep in mind is that fans are generally specialized for one of two things. Either they are optimized to move a high volume of air (generally with large blades and high RPM) or generate high static pressure. High-airflow fans can run into problems when used in a case with restricted airflow – that’s what high static pressure fans are for. There are several available configurations covering many of the most popular Ender 3 upgrades, such as support from different extruders, hotends, and ABL probes. Fang: Developed by Thingiverse maker mr-cal, the Ender 3 Fans borrows the same basic dual-duct design as the Petsfang and works as both a classic Ender 3 and Ender 3 Pro fan upgrade.

Petsfang: A go-to design for many tinkerers looking for an Ender 3 cooling fan upgrade, the Petsfang features a duo of ducts on either side nozzle to deliver optimal cooling and employs a 40×10 mm fan. ABS and other more temperature-sensitive filaments fare best when the part cooling fan speed is set to 0%. Typically, when you’re looking to replace the fans, noise reduction is the main reason to consideran Ender 3 quiet fans upgrade. First, make sure you measure your PC case to make sure the fan you want will fit in the mounts your case has. Standard sizes range from 80mm to 250mm, and you’ll generally need larger fans for larger PC cases, since they’ll need to move more air. 120mm and 140mm also (normally) have the same mount size, and larger fans are generally quieter and move more air. Connector: Noctua fans are available with standard 3-pin and 4-pin PWM connectors. The latter can be identified by the “PWM” designation. Choose 4-pin PWM versions if you would like to use the PWM fan speed control of your motherboard (or other devices). The 3-pin versions can only be speed-controlled by reducing the voltage (or using the supplied Low-Noise Adaptors in the case of FLX and ULN versions). However, as explained in this FAQ, 3-pin fans can also be used on most 4-pin headers and vice versa. Note that some models also come with adaptors for 4-pin peripheral connectors, 2-pin or USB connectors, or the OmniJoinTM adaptor set that allows the fan to be connected to proprietary fan headers. Please refer to the specifications of the individual models for details.Accessories: Redux and industrialPPC line fans come with mounting screws only whereas the standard-line fans come with a rich bundle of accessories (different cables, adaptors, anti-vibration mounts, etc., see individual specifications for details). The chromax line fans come with mounting screws and swappable anti-vibration pads in different colours. It will give you a finer control level over the speed of your fans. You can reduce the power supply below twelve volts and consequently reduce the speed of the Noctua fans.

The most prevalent method to control the speed of the Noctua fan is through PWM (Pulse Width Modulation).This option is useful if (1) you don’t like to mess around in BIOS, (2) Noctua’s PWM function doesn’t work for your setup, and (3) You need extra customizations not available in BIOS. With all this in mind, here are recommendations for both a 40 x 10 mm and 40 x 20 mm Ender 3 Hotend fan replacement: If you use a 3-pin version, you’ll need a workaround such as voltage adjustment (see how-to instructions later in this article). Here’s a list of recommended quiet Ender 3 fan upgrades, which strike a good balance between noise levels and airflow: The correct level of cooling also depends on your aims– less results in stronger prints while more generally leads to a high-quality finish.

The Petsfang also exists in a suitable version if you’re looking for an Ender 3 Pro fan upgrade or Ender 3 V2 fan upgrade rather than the original Ender 3. The latest Gen6 iteration is the best yet – better cooling performance, improved ease of assembly, and compatibility with a broad range of extruder and hotend upgrades. It’s compatible with all 40×10/20 mm fans, though the project was initially conceived to pair best with Noctua parts. Noctua offers a wide selection of fans for various demands and purposes. Use the following criteria to select the model that works best for you:

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Find the 3-Pin header—You’ll need to find the 3-pin fan headers on your motherboard. It’ll be close to the CPU. The header connections are a series of Pin #1, +VDC (varying) to Pin #2, and Pin #3 (the Speed signal).