Gentle Typhoon 120mm 800 RPM Cooling Fan Discontinued
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Scythe Gentle Typhoon 120mm 800 RPM Cooling Fan

High performance paired with low noise - that is what the new Gentle Typhoon fans developed by Nidec Servo Corp. are all about.

High Performance

The Gentle Typhoon achieves high airflow volume and low noise with the newly designed impeller, enabling silent cooling of the latest devices which run very hot.

Silent Operation

The Gentle Typhoon has a different type of tone. The fan propeller is designed to reduce the disturbing frequency fan noise to the human ear.

Innovative Technology

The newly designed motor and motor support mechanism uses a double vibration reduction structure. The new support mechanism uses coil dampers to greatly reduce vibration.

Features

Quiet PC cooling fan
High performance
Developed by Nidec Servo Corporation
Only 9.0 dB(A) at 800 RPM

Specifications	GT 120mm 800
Model-No.	D1225C12B4AP-12
Manufacturer	Nidec Servo Corporation (Japan)
Weight	200 g
Dimensions	119 x 119 x 25 mm
Maximum air flow, CFM ±10%	28.2
Maximum noise level, dB(A)	9.0
Maximum fan speed, RPM ±10%	800
Bearing Type	Double Ball Bearing
MTBF	100,000 hour at 35°C or 60,000 hours at 60°C
Accessories	4-pin Molex Adapter, 4x Screws
Warranty	24 months

Specifications	GT 120mm 800
Model-No.	D1225C12B4AP-12
Manufacturer	Nidec Servo Corporation (Japan)
Weight	200 g
Dimensions	119 x 119 x 25 mm
Maximum air flow, CFM ±10%	28.2
Maximum noise level, dB(A)	9.0
Maximum fan speed, RPM ±10%	800
Bearing Type	Double Ball Bearing
MTBF	100,000 hour at 35°C or 60,000 hours at 60°C
Accessories	4-pin Molex Adapter, 4x Screws
Warranty	24 months

Customer Reviews

ice cold, is it on?

Anonymous, 25th January 2014

This fan is what the doctor ordered. I had to install it to protect my invested PC build and I am not disappointed, it just silently does its job and has been reliably still going after 5 years plus. It maintains good volume of air at huge speeds and does it at no extra pain to my ears. Well worth it.

The best fans I've had

Anonymous, 28th April 2009

I’m using these on an external quad radiator and although not silent the noise is a very quiet whirring sound at full speed rather than the whine you get on many fans. They can also be slowed down by around 50% with no stuttering or motor noise and are then barely detectable whilst still delivering adequate cooling. Very impressed and wish I’d bought some of these earlier.

Product Resources

Scythe website

FAQ

How do I measure fan size?
The size of fan you need will generally be determined by the size of the fan fitting position in your PC case. The sizes of all the fans on our website are shown as measured along any one of the fan’s four sides, NOT the distance between the fan’s screw holes! Our most popular fan size is 120mm, followed by 80mm. This isn’t really dictated by customer preference, but more by recent designs of PC cases.

As for the thickness (depth) of the fan, generally 25mm (1 inch) is by far the most common depth, although smaller fans can have shallower depths such as 15mm or even 10mm. All our fans are 25mm thick unless otherwise stated. If you have any questions about which fan you should order, please don’t hesitate to get in touch.

If you know the distance between the fan mounting screw holes but don’t know what fan size to order, please see the following table. Note that the mounting hole measurements shown below are taken horizontally or vertically between the holes and not diagonally.

Screw hole spacings and fan sizes

Space Between Screw Holes Fan Size

32mm 40mm

40mm 50mm

50mm 60mm

60mm 70mm

72mm 80mm

83mm 92mm

105mm 120mm
I received a small cable (resistor) with my fan; what is it for?
The resistor cable (also called Ultra Low Noise or ULN cable) is designed to allow the fan to run slightly slower for even quieter operation. The benefit in lower running noise is significant. Although the airflow will be reduced slightly, this usually has minimal effect on PC temperature. We would generally recommend using the ULN resistor cable for best results in almost all circumstances.
How can I tell which way the air blows through the fan?
Hold the fan so that the round fan sticker is facing you. You are looking at the rear of the fan. When you plug the fan in, the air will be blowing towards you. If you want a fan to act as an air intake, then the fan sticker will be facing the inside of the case. Some fans also have two small arrows moulded into their plastic housing - one arrow shows the direction of airflow, and the other (at 90°) shows the direction of blade rotation.
Is it possible to use a 4-pin PWM fan or CPU cooler with a motherboard which has only 3-pin fan headers on it?
Electrically, there is no problem doing this - the fourth pin on the fan cable is used purely for PWM control and is not needed in order for the fan to run. So you can plug the 4-pin fan connector onto the 3-pin motherboard fan header, leaving the fourth pin not connected to anything. The fan will potentially run at full speed, so if you would like to reduce the speed of the fan you will need to adjust the fan speed setting in your BIOS or use fan control software such as SpeedFan in Windows.

The only other problem to consider is that occasionally, components immediately adjacent to the motherboard fan header can get in the way of the larger 4-pin fan connector, physically preventing connection. This problem also occurs if you try to use an in-line fan speed controller such as the one made by Gelid.

Another avenue to explore is the possibility of using a bay-mounted fan controller. Several models are available now which provide 4-pin fan headers, so this is an easy way to use 4-pin PWM fans in a PC system which has only 3-pin fan headers on its motherboards. When using this method, you may find it necessary to disable any fan warning settings in your motherboard BIOS, since the motherboard may incorrectly believe that its CPU fan has failed when the fan is connected to a fan controller rather than directly to the motherboard itself.