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Heatsink fans direction

post #1 of 6
Thread Starter 
The two Noctua fans on the D15 heatsink is starting to fail with motor noise and coil whine at high RPMs so I have two Phanteks PH-F120MP fans to replace them but I didn't check the airflow direction arrows before I removed them from the heatsink, but it should be both airflow direction arrows pointing towards the back of the case and that is the best airflow?

My Coolermaster case has 3x120mm front intake and 1x120mm rear exhaust.
post #2 of 6
The side of fan with no frame to support fan motor is intake, the side with frame is exhaust.
post #3 of 6
Thread Starter 
Quote:
Originally Posted by doyll View Post

The side of fan with no frame to support fan motor is intake, the side with frame is exhaust.
The best config is to have both fans on the heatsink as intake?
post #4 of 6
Yes, fans flowing air from front to rear of case (mounted to front of cooling tower, pushing through) is the recommended setup in a typical case configuration.
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Gigabyte Z170
(23 items)
 
 
Brother's Machine
(15 items)
 
CPUMotherboardGraphicsRAM
i5-6600k GIGABYTE G1.Sniper Z170 EVGA GeForce GTX 1070 FTW Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 
Hard DriveHard DriveOptical DriveCooling
Samsung 950 Pro 512GB M.2280 Seagate Barracuda 2TB 3.5" 7200RPM LG WH14NS40 Blu-Ray/DVD/CD Writer Phanteks PH-TC14PE_BL 
CoolingCoolingCoolingCooling
Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP Phanteks PH-F140SP 
CoolingCoolingOSMonitor
Phanteks PH-F140SP Phanteks PH-F120SP Windows 10 Pro Visio E601i-A3 
KeyboardPowerCaseMouse
Logitech K400 EVGA SuperNOVA 750 G2 Phanteks Enthoo Luxe Logitech G600 MMO 
OtherOtherOther
XBox One Controller Reeven Four Eyes Touch HTC Vive 
CPUMotherboardRAMHard Drive
Pentium G4560 ASUS H110M-A/M.2 Corsair Vengeance LPX Western Digital Caviar Blue 
Hard DriveCoolingOSPower
Western Digital Caviar Blue Cryorig H7 Undecided EVGA Supernova G2 750W 
CaseOther
Corsair Air 540 Phanteks PH-F140SP 
CPUMotherboardGraphicsRAM
i3-2120 ACER IPISB-VR EVGA GTX 260 3x2GB DDR3 
Hard DriveOptical DriveOptical DriveCooling
Wester Digital Green ASUS DVD RW DVD RW Stock Cooler 
CoolingCoolingCoolingOS
Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Noctua NF-S12B Redux-1200 Windows 10 Pro 
PowerCaseMouse
Thermaltake TR2 500W Corsair Carbide Spec-01 Microsoft Intellimouse 
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post #5 of 6

If you have a D15, you have bought the heatsink less than 6 years ago, and that is within warranty. Contact Noctua technical support.

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alpha updated
(19 items)
 
secundus
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790k Gigabyte GA-Z97X Gaming-7 Intel HD4600 Crucial Ballistix Sport Very Low Profile 8GB Ki... 
Hard DriveCoolingOSMonitor
Samsung 840 EVO 500GB Prolimatech Megahalems Rev. C Windows 8.1 Home Premium 64-bit Acer K242HL 
KeyboardPowerCaseMouse
Dell SK-8110 (PS/2) Seasonic X460 Fanless motherboard tray from CM ATCS 840 Logitech MX 1100 
Mouse PadAudio
Dell Creative SoundBlaster X-Fi MB3 
CPUMotherboardGraphicsRAM
i7 860 Gigabyte GA P55M UD2 ZOTAC/NVidia GTX 650 Ti 2GB 4x4GB G.Skill Ripjaws DDR3-1333 CAS9 
Hard DriveOptical DriveCoolingOS
Samsung 1TB Spinpoint F3 7200.12 Plextor 24x DVD burner Cooler Master Hyper Z600R Win7 64-bit 
MonitorKeyboardPowerCase
Dell E207WFP 20-inch flat panel Logitech Wireless 510 Seasonic X-650 fully modular 80+ Gold Lian Li PC-7FN 
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Wireless Mouse WACOM Intuos 3 generic 
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post #6 of 6
Quote:
Originally Posted by Swiftz View Post

The best config is to have both fans on the heatsink as intake?
Put one fan as intake on the front of front tower.
Put 2nd fan in middle on front of 2nd tower as intake.

What ehume said.
Noctua will most likely replace them at no cost.
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