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Windows 7: Reading fan RPM's

24 Apr 2010   #1
TechTune

Win7 Professional x64
 
 
Reading fan RPM's

Hey guys..

I was wondering if anyone knew what I should look for regarding molex connectors from hardware and on the motherboard to be able to view RPM's. I know a 3-pin molex will get you a fan reading, but where should it connect, and what if it's 4-pin?
The Rampage 2 Extreme supports reading fan RPM's throughout the whole computer and it's enabled in BIOS, but I think the guys who built this one perhaps messed up some connections.
I get alot of temp readings, but only the CPU fan gives me a fan reading..
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Name:  Speedfan.jpg
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Size:  59.8 KB
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Anyone?

Michael




My System SpecsSystem Spec
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24 Apr 2010   #2
Crispy

Windows 7 Ultimate x64 Service Pack 1 (Build 6.1.7601)
 
 

You cant get a reading from a 4pin connection that's only a 12v, you need to have a 3pin plugged into the mobo from the fan and it read that info form the BIOS.
My System SpecsSystem Spec
24 Apr 2010   #3
TechTune

Win7 Professional x64
 
 

Ahh, okey.. Thanks Crispy
Does that mean any fans with only 2 wires are unable to read rpm?
My System SpecsSystem Spec
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24 Apr 2010   #4
thefabe

Windows 7 ultimate 64 bit / XP Home sp3
 
 

From what I just read on Tomshardware it said 2 wires are for running the fan positive and negitive, the third wire reads the rpms. Fabe
My System SpecsSystem Spec
24 Apr 2010   #5
Crispy

Windows 7 Ultimate x64 Service Pack 1 (Build 6.1.7601)
 
 

Quote   Quote: Originally Posted by TechTune View Post
Ahh, okey.. Thanks Crispy
Does that mean any fans with only 2 wires are unable to read rpm?
As long as they can plug into the motherboard via a 3pin connection then yes.
My System SpecsSystem Spec
25 Apr 2010   #6
thefabe

Windows 7 ultimate 64 bit / XP Home sp3
 
 

This is the diagram I posted my reponce from. Fabe Name:  Fan power connectors.PNG
Views: 7
Size:  7.8 KB


My System SpecsSystem Spec
25 Apr 2010   #7
th3r0ck

Windows 7 Ultimate x64
 
 

use GPU.Z

google it
My System SpecsSystem Spec
25 Apr 2010   #8
TechTune

Win7 Professional x64
 
 

Thank you all, always great help on this forum!
th3r0ck, heheh.. started using that on friday actually, very nice program.
My System SpecsSystem Spec
25 Apr 2010   #9
th3r0ck

Windows 7 Ultimate x64
 
 

oppS!! then i am late!!
My System SpecsSystem Spec
Reply

 Reading fan RPM's




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