Asus AI Suite 3

[PieEater]

As the only fan the software appeared to have an issue with is the only one set to PWM control it could be worth setting the CPU fan to DC control and seeing if this makes a difference !?!

 

[yeoman]

As the only fan the software appeared to have an issue with is the only one set to PWM control it could be worth setting the CPU fan to DC control and seeing if this makes a difference !?!

I'll give it a try, if I set the CPU fan to DC wont that stop it adjusting its speed when the CPU gets hotter ? I'm not sure what the difference is between PWM & DC.
Regards
Greg

 

[ttaskmaster]

I'll give it a try, if I set the CPU fan to DC wont that stop it adjusting its speed when the CPU gets hotter ? I'm not sure what the difference is between PWM & DC.
Regards
Greg

No, it will just behave like a standard 3-pin voltage-controlled fan. The speeds will be approximate, but still good enough for reasonable accuracy, ie within about 50rpm.
PWM just uses less power and allows the fan to spin at lower RPMs.

 

[yeoman]

No, it will just behave like a standard 3-pin voltage-controlled fan. The speeds will be approximate, but still good enough for reasonable accuracy, ie within about 50rpm.
PWM just uses less power and allows the fan to spin at lower RPMs.

Thanks for explaining the difference, I set all fans to DC in BIOS, reinstalled AI Suite 3 and ran the fan tuner which worked, now all the fans are listed with graphs. I have made a few tweaks, unchecked the auto fan stop & critical temp at 75 degrees, lowered the temp slightly that the fans ramp up to full speed. I have noticed that the tuner has set the fans to smart mode, CPU temp is 34 degrees, CPU fan speed is 584rpm, the other case fans are around 600rpm. I have 4 case fans but only 3 show up in AI Suite 3, the CPU Opt fan isn't shown but is listed in BIOS. Also I didn't know that the CPU frequency goes up and down from 800mhz up to 3.9ghz, constantly changing (the BIOS says the CPU frequency is 3.5ghz.
Thanks for help
ATB
Greg