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CPU fan 3 pin plugged into 4 pin

post #1 of 15
Thread Starter 
i was wondering if i was able to plug a 3 pin fan into a 4 pin pwm mobo header for the CPU Fan
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post #2 of 15
Yeah, you can do it. smile.gif
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post #3 of 15
Sure can. You just obviously will not be able to use the PWM fan speed control function.
    
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post #4 of 15
Thread Starter 
will it still be controlled by the MOBO or will it be at max all the time

edit: just read the post ^ above
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post #5 of 15
Depends on your motherboard. Some mobos allow voltage control, others do not. Check your BIOS.
    
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post #6 of 15
Quote:
Originally Posted by Hartk1213;14837820 
will it still be controlled by the MOBO or will it be at max all the time

edit: just read the post ^ above
Your MB supports either Voltage and PWM control. You can set this option in BIOS; PC Health Status - CPU Smart Fan Mode
Quote:
CPU Smart FAN Mode
Specifies how to control CPU fan speed. This item is configurable only if CPU Smart FAN Control is set to Enabled.

Auto
Lets the BIOS automatically detect the type of CPU fan installed and sets the optimal CPU fan control mode. (Default)

Voltage
Sets Voltage mode for a 3-pin CPU fan.

PWM
Sets PWM mode for a 4-pin CPU fan.

Edited by gymenii - 9/7/11 at 1:52pm
post #7 of 15
Thread Starter 
Quote:
Originally Posted by gymenii;14855449 
Your MB supports either Voltage and PWM control. You can set this option in BIOS; PC Health Status - CPU Smart Fan Mode
where did u find this info at ??
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[Western Digital] Blue 320GB [Maxtor] 320GB soon to be adding 4TB from WD Red [Lite-On] DVD Player/Burner 
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The Prodigy
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[AMD] Athlon II x2 255 [Gigabyte] GA-78LMT-SP2 [Onboard] ATI Radeon 3000 [Crucial] Ballistix 8GB (2x4GB) 
Hard DriveHard DriveHard DriveOptical Drive
[Western Digital] Blue 320GB [Maxtor] 320GB soon to be adding 4TB from WD Red [Lite-On] DVD Player/Burner 
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post #8 of 15
Yes, You can do such thing. Plug the 3-Pin Connector under that little plastic thingie and it will fit just fine, Leaving that 4th unnecesarry PWM Pin empty wink.gif
post #9 of 15
Quote:
Originally Posted by Hartk1213;14858620 
where did u find this info at ??

I think all the Ultra Durables have it. thumb.gif
 
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post #10 of 15
Quote:
Originally Posted by Hartk1213;14858620 
where did u find this info at ??

The manual
Section 2-8
PC Health Status

http://download.gigabyte.us/FileList/Manual/mb_manual_ga-990fxa-ud3_e.pdf
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