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PWM fans and motherbaord headers.

post #1 of 8
Thread Starter 
How many 120mm PWM fans can a single header handle? I am looking at possibly putting 4 PWM fans on a single header and wondering if it can handle that load.
post #2 of 8
A typical header can power 2 fans, but to get more you will need a PWM POWERED splitter, these have a molex inject power while maintaining PWM.
     
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post #3 of 8
Thread Starter 
Okay can you point me to one of these?
post #4 of 8
     
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post #5 of 8
Quote:

This one is a bit special since it takes the PWM signal from the motherboard but the power comes from the PSU (Molex plug).

That means additional cable but virtually unlimited fans power.
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Ti-89 Titanium
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PNY Prevail Elite 120GB Hitachi 7K1000.C 1TB LG GH24LS50 Noctua NH-C12P SE14 
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post #6 of 8
Thats one of the only ones that retain PWM, while injecting power into the process, these can be had for <£5 here in the Uk, it may be different for you
     
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CPUMotherboardGraphicsRAM
Intel Core i7 3820 @ 4.5Ghz ASUS Rampage IV Formula X79 EVGA GTX 980 Ti Hybrid @ 1450/1900 Corsair Dominator 16gb @ 2.2GHz C9 
Hard DriveHard DriveHard DriveCooling
WD Caviar Blue 1tb 7200RPM WD Caviar Blue 1tb 7200RPM WD Caviar Blue 500gb 7200RPM 120.5 Custom Loop 
OSMonitorKeyboardPower
Windows 10 Pro x64 LG D2343P-BN 3D Monitor @ 70Hz Corsair K70 (MX Brown) Corsair AX Series 850w 
CaseMouseAudio
NZXT Switch 810 Black (Heavily Modded) Logitech G502 Proteus Spectrum Sennheiser HD 598 Cs 
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Optical DriveCoolingCoolingOS
LiteOn Bluray Player Corsair Hydro Series H100i Zalman 120mm Led Fans x4 Windows 10 Pro x64 
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post #7 of 8
Thread Starter 
Awesome, thanks guys
post #8 of 8
Glad to know I Helped. I would grab 1/2 of them as they are very high quality, and its better to have 1 spare than wait a week for shipping etc
     
CPUMotherboardGraphicsRAM
Intel Core i7 3820 @ 4.5Ghz ASUS Rampage IV Formula X79 EVGA GTX 980 Ti Hybrid @ 1450/1900 Corsair Dominator 16gb @ 2.2GHz C9 
Hard DriveHard DriveHard DriveCooling
WD Caviar Blue 1tb 7200RPM WD Caviar Blue 1tb 7200RPM WD Caviar Blue 500gb 7200RPM 120.5 Custom Loop 
OSMonitorKeyboardPower
Windows 10 Pro x64 LG D2343P-BN 3D Monitor @ 70Hz Corsair K70 (MX Brown) Corsair AX Series 850w 
CaseMouseAudio
NZXT Switch 810 Black (Heavily Modded) Logitech G502 Proteus Spectrum Sennheiser HD 598 Cs 
CPUMotherboardGraphicsRAM
AMD FX-6300 @ 4.5Ghz Gigabyte 970A UD3 AMD HD8490 (OEM) @ 1.1Ghz Core/Mem Patriot Viper Xtreme 8gb @1600MHz 8-8-8-24 
Optical DriveCoolingCoolingOS
LiteOn Bluray Player Corsair Hydro Series H100i Zalman 120mm Led Fans x4 Windows 10 Pro x64 
MonitorKeyboardPowerCase
Hitachi 24" 70Hz Monitor Logitech EX110 OCZ ZT 550w Full Modular Zalman Z9 Plus 
MouseAudioOther
DELL Wireless Mouse Logitech 5.1 Sound System TP-Link TL-WN781ND Wireless Card 
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CPUMotherboardGraphicsRAM
Intel Core i7 3820 @ 4.5Ghz ASUS Rampage IV Formula X79 EVGA GTX 980 Ti Hybrid @ 1450/1900 Corsair Dominator 16gb @ 2.2GHz C9 
Hard DriveHard DriveHard DriveCooling
WD Caviar Blue 1tb 7200RPM WD Caviar Blue 1tb 7200RPM WD Caviar Blue 500gb 7200RPM 120.5 Custom Loop 
OSMonitorKeyboardPower
Windows 10 Pro x64 LG D2343P-BN 3D Monitor @ 70Hz Corsair K70 (MX Brown) Corsair AX Series 850w 
CaseMouseAudio
NZXT Switch 810 Black (Heavily Modded) Logitech G502 Proteus Spectrum Sennheiser HD 598 Cs 
CPUMotherboardGraphicsRAM
AMD FX-6300 @ 4.5Ghz Gigabyte 970A UD3 AMD HD8490 (OEM) @ 1.1Ghz Core/Mem Patriot Viper Xtreme 8gb @1600MHz 8-8-8-24 
Optical DriveCoolingCoolingOS
LiteOn Bluray Player Corsair Hydro Series H100i Zalman 120mm Led Fans x4 Windows 10 Pro x64 
MonitorKeyboardPowerCase
Hitachi 24" 70Hz Monitor Logitech EX110 OCZ ZT 550w Full Modular Zalman Z9 Plus 
MouseAudioOther
DELL Wireless Mouse Logitech 5.1 Sound System TP-Link TL-WN781ND Wireless Card 
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