Noctua and QNAP 251 = The ONLY whisper quiet 60mm fan!

Noctua and QNAP 251 = The ONLY whisper quiet 60mm fan!

Noctua NF-A6 PWM (Personal Computers)

Customer Review

I have them all by: Pope, Revoltec, Noiseblocker.

Unfortunately, all the brands mentioned are flunked in size 60mm with me as too loud or annoying sounds. The Noctua is the first 60s of REALLY is silent.

I bought the fan to 251 finally get my QNAP living room-compatible, because the built-in 70mm fan is very loud (and turns in the lowest level at 900 rpm). Since the holes do not match, I simply plugged the rear through the supplied rubber buffers in the "groove" of the circular fan opening on the unit and connected to the fan. Since the Noctua is rubberized everywhere anyway, he can not give vibrations to the housing of the NAS.

=> It works! The fan keeps bombenfest still and the speed was immediately recognized by the NAS and controlled via PWM fan. Even at high revs (> 900) is directly on the NAS a draft to hear, but no unnecessary noise from the bearings, etc. Thus, in the living room rack completely silent! (Disk accesses one hears of course still).
We flew in, the fan is too low, but do not worry, there's loads of space in the housing of the 251st

At ~ 650 revolutions arise with me following Temps (degrees Celsius):
- CPU 45 degrees
- System 40 degrees
- HDD1 31 degree (WD Red 3TB)
- HDD2 31 degree (WD Red 3TB)

- Fairly high price, but rather once expensive than twice cheap.

- PWM capability (in the 60's I think the only PWM enabled => Top!)
- Great accessories, stop with various cables, vary the speed / at 2000 rpm, the PWM
- Rubber buffer
- Absolute silence, only the draft is at higher speeds from making

If the fan buy definitely again! Those looking for absolute silent fan, is always in good hands with Noctua.

Slippers! 9 Rank: 4/5
July 20
1 February 60 Poor 7 Rank: 1/5
January 16
The masterpiece of the group? Rank: 5/5
August 18
January 3
Nice 1724 Rank: 4/5
January 16
A okay, now a scrap Rank: 2/5
October 10

Related Reviews

The only true silent 60mm fan !!Noctua NF-A6x25 FLX - case fan - 60 mm, NF-A6X25 FLX (Personal Computers) TomTom GO6000 / GO5000 and development of the scheme | 07.17.2014TomTom GO 6000 Europe navigation system (15 cm (6 inches) touch screen, 8GB of internal memory, QuickGPSfix, TomTom Lifetime Traffic & Maps) (Electronics) The only remedy, which helps my shed.Garnier Sulfrin hair tonic, 3-pack (3 x 200 ml) (Health and Beauty) Solid performance for the AGP bus, and whisper-quietGainward nVidia GeForce 7600 GT graphics card, 256MB DDR3 RAM, AGP, VGA / DVI / HDTV / TV, Retail (Personal Computers) Whisper quiet, enormous filter performance and long service life.JBL 6020000 external filter for aquariums 40-120 liters, ChristalProfi e 401 greenline, 60200 (Misc.) Whisper-quiet and super clean!AEG LAVAMAT L5.5FL washing machine front loader / A +++ -10% B / 1400 rpm / 7 kg / Start time delay / spot option (Misc.) the only one for NZXT Phantom and underwhelming!NZXT FS-200 fan with blue LED 200 mm (Personal Computers) powerful, quiet and well worth the moneyRemko mobile dehumidifier Bautrockner ETF 320, max. 30 liters daily output (tool) The only WT with the values ​​of air and water dries !!!LG F14A8YD5 front loading washer-dryer (A 8 kg, 55 L, DirectDrive, Motion DD) silver (Misc.) the almost perfect alarm clock, the only thing that would be to improve would be a quieter alarm soundRegent 44/760/0 Radio Digital Alarm Clock White Pressure is well and everything is tight and the only one in this length!Mannesmann garden hose set, M60310 (tool) Too narrow for the Lumia 830, mobile turns it by itself and can be removed only with difficulty again!fitBAG Rave Black cell phone pocket from textile material with microfiber lining for Nokia Lumia 830 (Wireless Phone Accessory) Quiet, fast and efficient with the flowRussell Hobbs 20191-70 Colours Flame Red compact kettle, safety lid, 1 L, 2,200 W (household goods) The only 5 mouse buttons affordable and good quality ... and the height is that it comes with a carrying case.Gigabyte M7700B Compact Bluetooth Laptop Laser Mouse Laser Mouse Bluetooth noble black (Personal Computers) Currently, the only somewhat comprehensive book on minecraft, and FrenchThe guide Minecraft Adventure, survival and creation (Paperback) ATTENTION: hardly screen protection - only protection against scratches at the corners and much of the back during a fallmumbi Cases Samsung Galaxy S5 Case transparent blue (accessory) The only novel by Pierre Desproges, a small pearl that policeman humorous parody and SFWomen who fall (Paperback)