KenAF wrote
I assume the bios also retains those % speed settings after you turn off the computer? So you just need to set everything once, then the software is no longer needed?
Correct, the software is just used to recalibrate the settings and does not need to be running.
The picture above shows fan control for the northbridge. I assume that is for a northbridge fan header. Can you set that option on your motherboard?
My version of Easy Tune 5 does not look like that. I have only two settings for the CPU speed and temp (a min. and maximum).
I dont have the Northbridge settings either. I downloaded the latest version of ET5 but still do not have the extra settings. Maybe my MB (GA-P35-DS4 v2.0) does not support the features. The northbridge fan header does not have a speed sensor either.
The manual for ET5 is very basic and does not explain much. The Gigabyte web site does not give much information either.
Also ET5 does not give all the temperatures and fan speeds. I use Speedfan to read the temps and speeds.
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java_ed wrote
Has anyone lowered their SFlex speed via mobo using bios or other utilties? (And without the loud DeeeDee..) I need to confirm that is the case and RMA this fan..
I have used S-Flex D,E,F and SlipStream 1200rpm, and Nactua NF-P12 with the CPU fan header and automatically controlled by the BIOS (not by Intel PWM 4 pin) without any DeeDee or any other odd clicking noise at any speed. This is with the Gigabyte MB fan controller with the BIOS set to control by voltage (legacy) and not PWM. I am not using Speedfan to control the fan.
If you can plug the S-Flex into another fan header or to a PSU connector with something to manually reduce the voltage and it does not make the noise, then I doubt it is a bad fan but rather a problem of how the S-Flex works with your MB setup.
Do you have the BIOS fan control set to run in voltage or legacy (3 pin fan) mode and not PWM mode?