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Windows 7: CPU FAN Running at 2700 RPM

18 Mar 2013   #11
PooMan UK

Windows 7 Ultimate 64bit
 
 

No they will be controlled just fine, The 4th pin is for PWM.

PWM (Pulse width modulation) Is the ability to adjust the rotation speed on the fly without changing the input voltage delivered to the cooling fan.

Your motherboard will be able to control them with voltage.

You can control a 3-pin fan connected to your mobo - be it on a 4-pin or 3-pin connector - via software like Speedfan. etc. Fans connected to the mobo are usually controlled by bios, but can be overridden by software. Take your cpu for instance with a 3-pin fan connected. Your bios has a listing of thermal limits (Tcase) for all CPU's that is supports, so when it detects your cpu the bios might be setup for instance so if CPU temp > 75% of Tcase set fan to 12v (or 100%); if CPU temp < 50% it might just send 5v. for 3-pin connectors the rpm reading is meaningless to the system itself, it's just an output signal for the user to interpret.

With PWM 4-pin fans however it's a different case. The fan is pulsed with 12v or nothing at all, and those pulses go for a set length of time, a width if you may... hence the name pulse-width modulation. PWM is more efficient as the fan is not constantly receiving voltage. both 3-pin and PWM fans adjust speed according to the same table of temps, just the control of speed is handled differently.


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18 Mar 2013   #12
Sardonicus

Windows 7 Home Premium 64 bit
 
 

I've had trouble getting Zalman.......3 pin fans to run slower on some motherboards. If software fails, the Fanmate 2 should do the job.
My System SpecsSystem Spec
18 Mar 2013   #13
Pantz

Genuine windows 7X64
 
 

Hello again Ahhhh ok..... so i guess i would need to get a NEW CPU FAN with a 4 pin connector ? any suggestions on a quiet 4 pin CPU Fan ?

Thanks in advance
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18 Mar 2013   #14
Ascendents

Windows 7 Pro SP1 x64
 
 

Is this the Fan controller you're using? Make sure you dont plug in the cpu fan on the motherboard itself and connect the fan controller to the motherboard and the other end with the cpu fan connecter

ZALMAN FAN MATE 2 Controller, Panel - Newegg.com
My System SpecsSystem Spec
18 Mar 2013   #15
Pantz

Genuine windows 7X64
 
 

Hello again, right now i am not using the ZALMAN FAN MATE 2 Controller, Panel - Newegg.com
but i do have it to try out, since the BIOS needs a 4 pin PWM Fan.
My System SpecsSystem Spec
18 Mar 2013   #16
Ascendents

Windows 7 Pro SP1 x64
 
 

Yeah give it a try it is a much better option in my opinion i have it in the front of my case and just route the cable through the case to plug it in and have the knob in the front makes it easier to adjust with a min rpm of 1200 and a max of 2500 im using a zalman cpu cooler as well so you should have the same rpm i use 1500 rpm on mine hope this helps.
My System SpecsSystem Spec
18 Mar 2013   #17
Pantz

Genuine windows 7X64
 
 

This older CPU Cooler has a 4 pin fan connector, will this work with my system ?

http://www.amazon.co.uk/Arctic-Cooli...3646709&sr=1-1
My System SpecsSystem Spec
18 Mar 2013   #18
Ascendents

Windows 7 Pro SP1 x64
 
 

Ah i am using a different cpu cooler it should still work though shutdown your computer and connect the fan controller and power back on dont worry about bios settings just go in windows i use hwmonitor to check fan rpms and temps you can find the download below and the cpu cooler i use if you are curios it cools really well but its a sharp cooler and has cut me before so be careful if you buy it.

CPU Cooler - ZALMAN CNPS9500A-LED CPU Cooler - Newegg.com

HWMonitor - CPUID - System & hardware benchmark, monitoring, reporting
My System SpecsSystem Spec
18 Mar 2013   #19
Sardonicus

Windows 7 Home Premium 64 bit
 
 

Quote   Quote: Originally Posted by Pantz View Post
This older CPU Cooler has a 4 pin fan connector, will this work with my system ?

Arctic Cooling Freezer 7 Pro Rev.2 CPU Cooler: Amazon.co.uk: Computers & Accessories
Sounds like a downgrade.
You can get a Fanmate on ebay.uk
My System SpecsSystem Spec
18 Mar 2013   #20
Ascendents

Windows 7 Pro SP1 x64
 
 

Have you tried the fan controller on your current zalman cpu cooler?
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 CPU FAN Running at 2700 RPM




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