Phanteks PH-TC14S & Cryorig C1 CPU Coolers

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Noise Measurements: Phanteks PH-TC14S

Specifications: Phanteks PH-TC14S Stock Fan
Manufacturer Phanteks Power Rating 2.4 W
Model Number PH-F140HP Airflow Rating 68.1 CFM
Bearing Type Updraft Floating Balance Speed Rating 500 ~ 1600 ± 250 RPM
Frame Size 140 x 140 x 25 mm
(120 mm mounting holes)
Noise Rating 25.3 dBA
Hub Size 41 mm Header Type 4-pin PWM
Blade Diameter 127 mm Starting Voltage 4.0 ~ 4.5 V
Cable Length 22 cm Weight 180 g
Corner Type Open Retail Availability ?
Additional notes:

The PH-TC14S features a different fan than previous Phanteks coolers, a model designed with a focus on high static air pressure. The blades are not heavily curved but they are enormous with each fin positioned very close to another. The housing shape is that of an uneven dodecagon and there are thin rubber washers attached to the 120 mm mounting holes.

According to the sticker, this fan is the "PH-F140HP" but the specifications don't match that particular model. It actually appears to be the "PH-F140MP", which Phanteks describes as a radiator fan, only using the HP's casing. This is a bizarre choice as the kind of impedance this design is used to overcome isn't present. The heatsink fins are not arranged in a particularly dense array.


The stock fan's range on PWM control according to Asus Fan Xpert2.

The stock fan is a relatively powerful model capable of 1600 RPM, but the bottom of its range, both on PWM and voltage control, is about 540 RPM.

Stock Fan Measurements
PWM Setting
Speed
[email protected]
100%
1600 RPM
33 dBA
75%
1100 RPM
23 dBA
60%
890 RPM
18 dBA
50%
740 RPM
15 dBA
40%
580 RPM
13 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

The stock fan starts to become quiet (~20 [email protected]) at about 1000 RPM, and at minimum speed, it produces a mere 13 [email protected], making it effectively inaudible, even inside our ultra quiet hemi-anechoic chamber.

Unfortunately the new Phanteks fan is considerably worse than the older PH-F140TS that ships with their flagship PH-TC14PE cooler. At higher speeds it's turbulent and buzzy. Starting at about 900 RPM, it begins to drone and produce an odd, almost ghostly tone which continues as the speed is reduced. The droning starts to transform into a less offensive humming sound at lower speeds but the tone remains, even at the minimum speed.

Noise Measurements: Cryorig C1

Specifications: Cryorig C1 Stock Fan
Manufacturer Cryorig Power Rating ?
Model Number XT140 Airflow Rating 65 CFM
Bearing Type High Precision Low Noise (Sleeve) Speed Rating 700 ~ 1300 RPM
Frame Size 140 x 140 x 13 mm
(120 mm mounting holes)
Noise Rating 20 ~ 24 dBA
Hub Size 44 mm Header Type 4-pin PWM
Blade Diameter 131 mm Starting Voltage 4.0 ~ 4.5 V
Cable Length 30 cm Weight 90 g
Corner Type Open Retail Availability Yes
Additional notes:

The 13 mm thin C1 stock fan is the same model that ships with the R1 Universal. Like most low profile fans, its cooling power is spread out over many more slimmer blades (13 in total) than a standard model. The rubber pads at the corners help limit vibration and creates a bit of separation between the fan and the heatsink, which can reduce turbulence.


The stock fan's range on PWM control according to Asus Fan Xpert2.

According to Fan Xpert2, the minimum speed is a bit high, 730 RPM on PWM control. On voltage control, I found it can go lower but it's fairly tricky as a minor reduction in voltage can slow the fan by up to 100 RPM or even shut it down completely.

Stock Fan Measurements
PWM Setting
Speed
[email protected]
100%
1420 RPM
34 dBA
75%
1270 RPM
30~31 dBA
60%
1120 RPM
26 dBA
50%
1000 RPM
22~23 dBA
40%
850 RPM
18 dBA
0~30%
730 RPM
15 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

As the minimum speed is about 730 RPM, the C1's fan unfortunately cannot become as quiet as the Phanteks model, bottoming out at 15 [email protected] At equivalent speeds, the Cryorig fan is slightly louder as well, and as its a slimmer model, it doesn't provide as much of a performance punch. Most users will want to run it at 1000 RPM or lower to keep the noise in check.

By comparison, the Cryorig fan has a considerably more pleasant sound than the Phanteks. At high speeds, it's turbulent but fairly smooth. It develops somewhat of a drone and the bearing begins to chuff at about 1000 RPM, but these effects dissipate at quickly lower speeds, leaving behind an innocuous broadband acoustic profile.



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