Phanteks PH-TC12DX CPU Cooler

Cooling
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Stock Fan Measurements

Specifications: Phanteks PH-TC12DX Stock Fan
Manufacturer
Power Rating
2.16 W
Model Number
PH-F120HP
Airflow Rating
23 ~ 68.5 CFM
Bearing Type
UFB (Updraft Floating Balance)
Speed Rating
600 ~1800 RPM ± 10%
Corners
Open
Noise Rating
21.9 ~27.6 dB(A)
Frame Size
120 x 120 x 25 mm
Header Type
4-pin
Blade Diameter
113 mm
Starting Voltage
4.1 V
Hub Size
41 mm
Weight
140 g
Data in green cells provided by the manufacturer or observed; data in the blue cells were measured.

The PH-F120HP is designed similarly to the 14 cm PH-F140 that ships with the TC14PE. The mounting holes are equipped with thin rubber washers, the struts are curved, and the blades have straight edges making them appear petal shaped. The hub is unusually large for a 12 cm model, measuring 41 mm across which is the same as the 14 cm version, creating a big dead-spot at the center.

At lower voltages the stock fan had a pleasantly smooth overall sound, similar to that of the larger PH-F140. Starting at about 7V, its acoustics got rougher, developing a low pitched hum at about 170 Hz. This persisted at higher speeds and as the turbulence increased, so did the whininess. The faster it spun, the worse it sounded.

Stock Fan Measurements
Voltage
One Fan
Two Fans
SPL@1m
Avg. Speed
SPL@1m
12V
35~36 dBA
1820 RPM
40 dBA
9V
30 dBA
1410 RPM
32~33 dBA
7V
23 dBA
1100 RPM
25~26 dBA
6V
18 dBA
940 RPM
21 dBA
5V
14 dBA
750 RPM
16 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

The measured SPL was high at full speed, 35~36 dBA@1m for just one fan. A speed of about 1,000 RPM or lower was required to make it quiet. The noise level of this fan was a bit higher than most running at similar speeds.

Test Results

Test Results: Phanteks PH-TC12DX
Fan Voltage
One Fan
Two Fans
SPL@1m
Thermal Rise
SPL@1m
Stock 120mm Fan
12V
35~36 dBA
39°C
38°C
40 dBA
9V
30 dBA
40°C
38°C
32~33 dBA
7V
23 dBA
42°C
40°C
25~26 dBA
6V
18 dBA
44°C
41°C
21 dBA
5V
14 dBA
47°C
44°C
16 dBA
Reference Nexus 120mm Fan
12V
17~18 dBA
40°C
39°C
22 dBA
9V
13~14 dBA
42°C
40°C
16~17 dBA
7V
11~12 dBA
45°C
43°C
13 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

Given its size and construction, it was no surprise that the TC12DX cooled our test CPU with ease. However, when the fans were set to quiet levels, the temperatures were higher than most premium heatsinks. The TC12DX performed considerably better with out reference Nexus fan, showing 4~5°C temperature improvements at similar noise levels.

Equipping a second fan was really only beneficial at low fan speeds. There was almost no difference at full speed using either the stock or reference fans.



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