Noctua NF-A8 PWM, Premium Quiet Fan, 4-Pin (80mm, Brown)
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R.L. Farrell
> 3 dayI installed this fan as replacements in two of my HP desktop computers with fans (both Cooler Masters) that had failed at nearly the same time. (planned obsolescence?) The Noctua NF-A8 PWM fans came with more than enough additional hardware, mounting options and electrical connections to facilitate replacement. I removed the old fans and heat-sinks. Cleaned mating surfaces of CPUs and heat-sinks and applied fresh thermal compound (Noctua NT-H1) and reassembled to motherboards. Both replacements performed perfectly and were very quiet as well as efficient. Both PCs run 54 watt Intel i3 CPUs and average temps are 28C at idle per Core Temp app, and never exceed 57C while under load test. I am well pleased. A great value for a reasonably priced fan with superior performance.
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Chris e
> 3 dayI have a desktop mini fridge that had a 12v fan in it that was obnoxiously loud. So I swapped it with this one, which required splicing and soldering. This works great, its completely silent now, and still cools just as well. Love it!
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EWF
> 3 dayPleantly surprise to see a conservative spec on noise reduction. The Noctura fan was better than its published spec.
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Lawrence
Greater than one weekwould not run at POST and boot up until computer called for high fan speed. BIOS fan test failed. Fan test expected speed of 2600RPM; actual results of 4 test reported 1000RPM each test.
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David
> 3 daysuper happy of these fans it exhaust all of the hot air from my Corsair 250D and does it without making any noise!!
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prinzeetz
> 3 dayGood
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Keith Diperi
> 3 dayI do a lot of custom builds whether it’s small electronics, emulator boxes, 3-D, print builds, etc. this is the only brand fan company I will use. Rocksolid great cooling you don’t even hear them on.
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Joseph
> 3 dayI literally cannot hear them.
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R. Lindsay
Greater than one weekI replaced the stock fan on my ICOM IC-7300 transceiver and it is much quieter. The unit moves more than enough air to keep my rig cool during long transmissions at full power. Exact details for making the change-out are available on the web.
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Brian V.
> 3 dayInstalled this under the Swiftech MCP 35x2 heatsink and it works great. Theres not much clearance at all, but it does a beautiful job at cooling the pumps. PWM is a plus, and very quiet.
The NF-A8 is a highly optimised, premium quality quiet 80mm fan. Featuring Noctua’s AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A8 further improves the renowned quiet cooling performance of the award-winning NF-R8. The PWM version sports Noctua’s custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 2200 to 1750rpm. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands.
AAO frame
Noctua"s AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua"s proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan"s performance/noise efficiency.
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Flow Acceleration ChannelsThe NF-A8 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise. |
SSO2 bearingThe NF-A8 features the further optimised second generation of Noctua"s renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability. |
Integrated anti-vibration padsIntegrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems. |
Scope of delivery
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Inner Surface Microstructures
With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.
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| NF-A8 PWM | NF-A8 FLX | NF-A8 ULN | NF-A8 5V PWM | NF-A8 5V | NF-A8 PWM chromax.black.swap | |
| Connector | 4-pin PWM | 3-pin | 3-pin | 4-pin PWM | 3-pin | 4-pin PWM |
| Voltage | 12V | 12V | 12V | 5V | 5V | 12V |
| RPM | Max: 2200 / Min: 450 | 2000 | 1400 | Max: 2200 / Min: 450 | 2200 | Max: 2200 / Min: 450 |
| RPM with L.N.A. | 1750 | 1650 | 1100 | - | - | - |
| RPM with U.L.N.A. | - | 1200 | - | - | - | - |
| Acoustical Noise | 17,7 dB(A) | 16,1 dB(A) | 10,4 dB(A) | 17,7 dB(A) | 17,7 dB(A) | 17,7 dB(A) |
| Acoustical Noise with L.N.A. | 13,8 dB(A) | 12,9 dB(A) | 6,5 dB(A) | - | - | - |
| Acoustical Noise with U.L.N.A. | - | 7,9 dB(A) | - | - | - | - |
| Size | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Black with swappable coloured anti-vibration pads |