SilverStone Tundra TD03 Liquid CPU Cooler

Cooling
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STOCK FAN MEASUREMENTS

Specifications: SilverStone Tundra TD03 Stock Fan
Manufacturer SilverStone Power Rating 3.6 W
Model Number AS1225H12 Airflow Rating 92.5 CFM
Bearing Type Sleeve Speed Rating 1500 ~ 2500 RPM
Frame Size 120 x 120 x 25 mm Noise Rating 16 ~ 33.5 dBA
Hub Size 42 mm Header Type 4-pin PWM
Blade Diameter 111 mm Starting Voltage 4.0 ~ 4.5 V
Cable Length 29 cm Weight 140 g
Corner Type Open Retail Availability No
Additional notes:

The TD03's stock fan has the same model number as the Argon AR01/AR03's 2200 RPM blower, but with a nominal rotational speed of 2500 RPM, it's a slightly more powerful variant. The structure is the same, with wavelike teeth and ridges cut into the blades on the exhaust side.


This is the screen capture of Fan Xpert 2's auto-analysis of the Tundra TD03 stock fan using PWM control.

This is the screen capture of Fan Xpert 2's auto-analysis of the Tundra TD03 stock fan using voltage control.

ASUS Fan Xpert 2 utility, or more specifically, its fan auto-tuning feature, gives us an idea of what to expect in terms of usable speeds when using onboard fan control. On PWM, the lower limit is about 1300 RPM, while on voltage control, it can run as low as 800 RPM before it stops spinning altogether.

Stock Fan Measurements
Voltage
Speed
SPL@1m
12V
2340 RPM
36 dBA
9V
1920 RPM
30~31 dBA
7V
1570 RPM
25 dBA
6V
1360 RPM
21~22 dBA
5V
1080 RPM
16~17 dBA
Pump Measurements
12V
2600 RPM
17 dBA
9V
2160 RPM
13~14 dBA
7V
1820 RPM
12 dBA
Measuring mic positioned 1m at diagonal angle from the center of the cooler base.
Ambient noise level: 10~11 dBA.

The stock fan is very noisy, generating an earsplitting 36 dBA@1m at full speed and only becomes quiet when brought down to the very low end of its range. It enters the quiet zone at about 1200 RPM. Being a water cooling system, the TD03 has a second source of noise: The pump. Since our first all-in-one liquid cooler review three years ago, pumps have become noticeably quieter and the TD03's is no exception. At full speed it produces only 17 dBA@1m and with a bit of undervolting, becomes muted very quickly.

While the pump is fairly quiet by water cooler standards, the quality of the noise is bad, especially at full tilt. At 7V and 9V, it emits a harsh buzzing like a fly hovering next to your head. At full speed the pitch increases considerably making it more annoying. The fan, for the most part, has a similar acoustic character to the Argon AR01/AR03 stock fan. It is relatively buzzy at higher speeds but the noise is more broadband and less tonal, while at lower speeds it tends to drone and hum slightly.

Combined Noise Measurements
Pump Voltage
Fan Voltage
SPL@1m
12V
12V
36 dBA
9V
30~31 dBA
7V
25 dBA
6V
22 dBA
5V
18~19 dBA
9V
6V
21~22 dBA
5V
18 dBA
7V
6V
21 dBA
5V
17 dBA
Measuring mic positioned 1m at diagonal angle from the center of the cooler base.
Ambient noise level: 10~11 dBA.

The combined noise output is very similar to the fan on its own. The pump's contribution is only audible when the fan is running at 6V and below, and even then, the difference is minuscule. If the fan is spinning at a decent speed it doesn't make any sense to slow down the pump at all.



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