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Scythe Slipstream 3/4pin question

post #1 of 6
Thread Starter 
Hey guys I just picked one of these up to replace my dead xigmatek fan for my HSF and had a question.
Currently this fan is powered off of the motherboard 'cpu fan' 4 pin and it is in fact a 3 pin connector. so there is one pin left over on the side.

Am i getting enough power to the fan or what? I'm reading only 800ish rpm in hwmonitor :\

I have the molex adapter so i'm wondering if i should just change the fan connection or what.
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post #2 of 6
The fourth pin is the PWM, it is used to control fan speed. So its getting the power it needs.

387
Edited by adizz - 4/7/12 at 9:05pm
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post #3 of 6
The fan is likely running at full speed already, which version of the fan did you get?

SY1225SL12SL
500 rpm
SY1225SL12L
800 rpm
SY1225SL12M
1,200 rpm
SY1225SL12H
1,600 rpm
SY1225SL12SH
1,900 rpm
1
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post #4 of 6
Thread Starter 
I got the SY1225SL12M which is why I don't understand the RPM rating :\
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post #5 of 6
Your motherboard probably is controlling the fan speed. Put IntelBurnTest or Prime95 running and see if the speed of the fan increases when cpu gets hotter.
Check the bios if you have the fan control enabled. Or if you have speedfan try that to control the speed.
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Helios
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CPUMotherboardGraphicsRAM
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8GB Team Group Crucial BX100 250GB WD30EFRX Samsung SH-B083L 
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WD1001FALS Samsung 830 64GB Optiarc AD5280S Noctua NH-U12P 
CoolingCoolingCoolingOS
Arctic Cooling Accelero S1 Rev. 2 Scythe Slip Stream PWM Scythe Gentle Typhoon AP-14 Windows 7 Ultimate 64bit 
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post #6 of 6
Have you gone into your BIOS and check to see if your CPU fan is set for high performance? Since it is powered by your MB.

at least on my MB I can set the performance level I want for my CPU fan. Probably the same for yours.
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