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all 3 x 120mm case fans running above 2150rpms

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Old 13-06-2018, 03:16 PM   #1
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all 3 x 120mm case fans running above 2150rpms

for the past few days i noticed my computer becoming way too noisy.

around a distance of 60cm, i measured a 50DB average on my phone.

so i monitored my cpu temps using the cpuid hwmonitor and it seems all 4 cores are alright at around 46-48C on near idle mode.

but my 3 fans, all 120mm case fans are running >2150 rpms consistently.

i just did a major dust clean up like less than 3 months ago, clearing the dust filters and fan dust/ psu fan filter etc.

i suspect its the bios control, but i have no idea how to resolve it via the bios.

any gurus can share some insights here will be appreciated greatly

thanks
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Last edited by TechNuB; 13-06-2018 at 03:26 PM..
Processor
ivy bridge i5-3470
Mainboard
Asrock b75m-dgs
Graphics Card
Asus 960 Strix
Memory
KVR 8 GB
Display
Dell U2415Hm / SamSung 2232GW
Storage
Crucial M500
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Sharkoon T28 Green
PSU
Seasonic M12 520W
Audio
Audio Engine A5
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Old 13-06-2018, 03:21 PM   #2
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If the mobo is as per your right profile, once enter bios, see if you can reduce the voltage to the fans. Max speed is at 12v, you can try set to 7v. Most minimum in general for a fan to start spinning is 5v.
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Processor
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MSI X370 Gaming Pro Carbon
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ASUS GTX 1080Ti FE w/ AQC Kyrographics Nickel Plated water block w/ Acrylic Glass
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Klevv Cras DDR4 4x 4GB 2800Mhz Red LED
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Samsung C32HG70 32" 1440p 144Hz
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Casing
Lian Li PC-O11 Dynamic / 5x Gentle Typhoons AP-15 / Alphacool 360 (45mm) + 240 (80mm) Radiators
PSU
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