Test Methodology
I use an LW-9266 Fan PQ performance measurement apparatus to evaluate cooling fans. This highly sophisticated scientific instrument was made in Taiwan by Long Win.
Fan Testing Machine Technical Specifications:
- Manufacturer: Long Win Science & Technology Corporation
- Air Flow Rate: 2.4 – 250 CFM
- Accuracy of Air Flow Rage: <3.5% INFS
- Repeatability error: < 2%
- Static pressure: 0-20mmAq (100mmAq with the high static pressure throttle device)
- Overall Dimensions: 0.7 (W) x 2.2 (L) x 1.6 (H) m
- Power Source: 220VAC, 5A, Single Phase, 50/60Hz
- Based on Standards: ISO 5801-2007, AMCA 210-0, ASHRAE 51-2007, IEC 61591-2005, GB/T 1236-200
Besides the Long Win machine, I also use the following equipment.
Testing Equipment:
- Noise Test Environment: Hemi-Anechoic Chamber with 6 dB(A) noise floor
- Conditions: 25 (+-2) degrees Celsius, 40-50% humidity
- Sound Analyzer: Bruel & Kjaer 2270-S G4
- Microphone: Bruel & Kjaer Type 4955-A
- Mic Calibrator: Bruel & Kjaer Type 4231
- Data Logger: Picoscope TC-08
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So I got some TL-C12W-S V3 fans (which I believe are more or less the same as the reviewed fans, except with and with aRGB) and 2 vertically mounted fans set as intake have very noticeable howling sound at above ~550 RPM. Could it be some weird resonance with cheap case (flimsy 0.6mm steel panel)? It’s the darkflash DPX90 case, I also got same 3 fans at the bottom as intake and they are running fine.
There is no way to tell for sure, I am afraid, without checking them.
The TL-C12C you mentioned in the end is a different, cheaper fan.
TL-C12C turns clockwise and turrns a little faster in max. Also they have other rubber pads.
TL-C12B turns counter clockwise.
The TL-C12B is available as ARGB variant TL-C12B-S V3 at Amazon as X3 Pack
for around 15€. Works very good on my Phantom Spirit EVO.
Hi juste to remind you about the NF-A14 industrialPPC 😅 and if you can ask Silverstone for review the new FHS 140X 😊
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will do! As for Noctua, they don’t talk to me anymore. I asked for these fans already, they didn’t send them after the G2’s reviews.