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ASRock Z68 Pro3 Fan Control Problems

post #1 of 8
Thread Starter 
So I just installed ASRock Z68 Pro3 and I noticed CPU fan (4-pin) is on 100%. Checked the temperature and it is only 30C. Went into the BIOS and saw this under CPU Fan 1

Target Speed --> Level 9
Target Temperature --> 50C

Manual made no mention of what these two actually is. I played with the settings a bit and it seems that I can manually adjust fan speed by changing target speed. I have no idea what target temperature is. Any one can share some insight?
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post #2 of 8
Just put down target speed and read out what temps its going to. Personally I'd let the target temp at 50, since this should be on load.
Edited by SteveMcQueen - 10/8/11 at 9:50am
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by SteveMcQueen;15224711 
Just put down target speed and read out what temps its going to. Personally I'd let the target temp at 50, since this should be on load.

So what does target temperature do? I changed target speed to level 4 and CPU fan now runs much quieter.

It seems weird since other motherboards I dealt with automatically vary CPU fan speed according to its temperature (gradually increase speed as temperature gradually increases).
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post #4 of 8
Thread Starter 
No one? I know a lot of people here uses ASRock.

Come on. Don't be shy! biggrin.gif
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post #5 of 8
The name "target fan speed" is counterintuitive. This is the minimum rate you want it to run it. I set mine to level 1, and that way my CPU fan #2 spins down to 700 rpm. Under load it will achieve max rpm. It will start ramping fan rpm once you hit the target temperature.
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by complexlogic;15228172 
The name "target fan speed" is counterintuitive. This is the minimum rate you want it to run it. I set mine to level 1, and that way my CPU fan #2 spins down to 700 rpm. Under load it will achieve max rpm. It will start ramping fan rpm once you hit the target temperature.

Makes much more sense. Kind of wish ASRock just change the fan speed gradually according to CPU temperature. From what you've said it can only do two fan speed, defeats the purpose of PWM fan.

+ Rep.
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post #7 of 8
Quote:
Originally Posted by trumpet-205;15230766 
Makes much more sense. Kind of wish ASRock just change the fan speed gradually according to CPU temperature. From what you've said it can only do two fan speed, defeats the purpose of PWM fan.

+ Rep.

Well, the fan speed seems to increase linearly with temperature once you hit the target temperature. The trouble is that when putting the CPU under load, the temperature ramps pretty quickly and so the fan speed has a tendency to go from its low that you have set to the maximum rpm quite rapidly
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by complexlogic;15230903 
Well, the fan speed seems to increase linearly with temperature once you hit the target temperature. The trouble is that when putting the CPU under load, the temperature ramps pretty quickly and so the fan speed has a tendency to go from its low that you have set to the maximum rpm quite rapidly

Thanks again. biggrin.gif
Misaka
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Misaka
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Crucial M4 128 GB WD Caviar Blue 1 TB Lite-on DVD Burner Thermalright Venomous X 
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