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MBO fan connector output limit?

post #1 of 8
Thread Starter 
So i have a problem,i"d like my motherboard to automatically control not just my cpu fan but one of my intake fans and one of my exaust fans. My cpu fan has a 4pin connector so auto regulation works. I have a cable that you connect in a 4 pin connector and then you can plug up to 3 fans in it. So if the first fan i plug in to that connector is a 4 pin cpu fan then the other two will be automatically controlled because they will get the same voltage. My concern is, i"m talking about two 120mm 2000rpm fans and one 140 1200rpm fan. So what is the limitation of the connector on my motherboard? Can it get fried if they pull to much amps from it? I have an ASRock 890gx extreme3. So i would connect a 2000rpm zalman 120mm fan, a 1900rpm scythe kama flow 120 and a 1200rpm scythe slip stream 140. Can the connector handle that?
post #2 of 8
Did you search your motherboard manual first to see if it says anything?
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Deus Ex Machina
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post #3 of 8
Thread Starter 
I don"t think it does, but i"ll look for it.
post #4 of 8
If I recall most motherboards can only draw 1amp from their 4pin. Maybe use a powered splitter so they can have some separate power?

http://www.advancetec.co.uk/45cm-akasa-flexa-fp5-pwm-5-fan-splitter-black-braided-cable-powered-via-4-pin-molex.html
     
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post #5 of 8
Thread Starter 
1A is i think enough for 2 of my fans, maybee even 3. I"ll look fo one of those cabels but i don"t think i"ll find it here in Croatia.
post #6 of 8
You could make one by taking a 4-pin cable and cutting the power lines off the connector that goes the motherboard and soldering them to a molex connector. Ugly, but it'll work.
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post #7 of 8
And he could then sleeve it to make it look better, That is a good thing I didnt think about
     
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WD Caviar Blue 1tb 7200RPM WD Caviar Blue 1tb 7200RPM WD Caviar Blue 500gb 7200RPM 120.5 Custom Loop 
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MonitorKeyboardPowerCase
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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 
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DELL Wireless Mouse Logitech 5.1 Sound System TP-Link TL-WN781ND Wireless Card 
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post #8 of 8
Thread Starter 
Nah , doesn"t seem like a good solution.
I"ll send an email to ASRock about this, they should know.
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