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3 PIN FAN CONTROL (PLEASE HELP)

Redsun20
By Redsun20
in Cooling
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Hi there I am new to building computers and just built my first one. I can't find out how to adjust fan speed on the 3-pin fans in my system and one of the fans is not even shown under the monitor. Specs are below:

 

Motherboard: MSI H81M-E34

CPU:Intel Pentium G3258 @ 3.6 Ghz

PSU: EVGA 430W 80 PLUS

RAM: 4 GB Crucial 1300

Case: Corsair SPEC-01

Video Card: GTX 750

 

Is it that 3-pin fan control is not supported or is it that I am missing something? PLEASE HELP!

“When life gives you lemons, don’t make lemonade. Make life take the lemons back! Get mad! I don’t want your damn lemons, what the hell am I supposed to do with these? Demand to see life’s manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am? I’m the man who’s gonna burn your house down! With the lemons! I’m gonna get my engineers to invent a combustible lemon that burns your house down!”

- Cave Johnson, founder and CEO of Aperture Science, in Portal 2

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Not all motherboards support it.

 

I think your board does though (not 100% sure), if you download MSI command center there's a fan control part in it. For me it doesn't tend to save any changes I make to the fans in Command center so go into the UEFI when you can and I'm pretty sure you can change the fan settings under hardware monitor. 

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One fan not being detected usually means that while it has connectors that are powered, they aren't being monitored by BIOS. I have one of those too and mobo is much more gamer/hc user oriented.

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3-pin fans are voltage controlled. Almost all 3-pin headers have voltage control and while they do fit on 4-pin headers, those may lack voltage control as they're actually meant for PWM.

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Are you using fan splitters in your system? 

No I am not

“When life gives you lemons, don’t make lemonade. Make life take the lemons back! Get mad! I don’t want your damn lemons, what the hell am I supposed to do with these? Demand to see life’s manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am? I’m the man who’s gonna burn your house down! With the lemons! I’m gonna get my engineers to invent a combustible lemon that burns your house down!”

- Cave Johnson, founder and CEO of Aperture Science, in Portal 2

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Not all motherboards support it.

 

I think your board does though (not 100% sure), if you download MSI command center there's a fan control part in it. For me it doesn't tend to save any changes I make to the fans in Command center so go into the UEFI when you can and I'm pretty sure you can change the fan settings under hardware monitor. 

I have command center and on the 4 pin header shows under being controlled

“When life gives you lemons, don’t make lemonade. Make life take the lemons back! Get mad! I don’t want your damn lemons, what the hell am I supposed to do with these? Demand to see life’s manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am? I’m the man who’s gonna burn your house down! With the lemons! I’m gonna get my engineers to invent a combustible lemon that burns your house down!”

- Cave Johnson, founder and CEO of Aperture Science, in Portal 2

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