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How to control case fan speed?

Joined
Aug 11, 2010
Messages
801
Ive changed the cable instead of connecting it to power supply, I have it to the mobo with that resistor cable thing, anyway I dont know how to control it in speedfan, in fact im not sure if Speedfan even detected it. The Bios same thing, how do I know which is which? Speedfan has Sysfan at 1048rpm, and CPU fan 998rpm, Aux Fan: 0, Aux fan1: 1000rpm, Aux fan 2: 0. The reality is I got two exhaust in the rear both connected to one cable to the mobo CHA_FAN2 or something. And the intake is CHA_FAN1. I dont expect to control the rear because they are connected to only one cable but the one intake I should. Oh and the two rear are 1000rpm while the front intake is 1500rpm, although with the resistor cable i dont know. What other programs out there that can help?
 
(lifted from the Asus site)

With Q-fan enabled, fan control is done in hardware, and SpeedFan et al. will only be able to read the fan speed, not control it. In order to enable software fan control, including SpeedFan and Asus' own utilities such as EPU-6 or Fan Xpert, you need to disable Q-fan.

As for PWR_FAN, this output cannot be controlled at all (either by software or Q-fan). You can run a fan off of this header but it will always run full speed.


Why not just buy a cheap fan controller?
 
(lifted from the Asus site)

With Q-fan enabled, fan control is done in hardware, and SpeedFan et al. will only be able to read the fan speed, not control it. In order to enable software fan control, including SpeedFan and Asus' own utilities such as EPU-6 or Fan Xpert, you need to disable Q-fan.

As for PWR_FAN, this output cannot be controlled at all (either by software or Q-fan). You can run a fan off of this header but it will always run full speed.


Why not just buy a cheap fan controller?

Q-fan is disabled in BIOS. maybe I should try Asus utilities? and what does Sys Fan mean? Cheap fan controller? no I dont want more clutter.
 
Try the Asus utilities. If that dont work, then your only alternatives are A: a fan controller, or B: Antec TriCool fans.
 
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