Dynamic fan speeds?

[djBon2112]

I'm using SpeedFan to change my Rad speeds right now, but I'm wondering if there's a way to have it dynamically change the Rad fan speed based on my CPU temperature. When it's idling I like to have a nice low fan speed (around 40%), but as soon as I launch games or something I'd like to bring it up to around 60-70%. I know this can be done manually, but is there any way to do it automatically based on the CPU (Core) temperature? Are there better programs for this?

 

[Koko56]

That's a good question....to which I don't know the answer unfortunatly....

It would be quite useful though.

 

[BillParrish]

if you are watercooling (and why would you have a rad if not )

find 4 pin (not molex) pwm controlled fans and plug them into the unused cpu fan header. Fan speed wiill then depend on cpu temp/load if you enable the settings in the bios. You probally could only run a couple of med speed 120mm off this header. More would probally pull too much current.

out of stock
http://www.frozencpu.com/cat/l3/g36/c15/s69/list/p1/Fans-Case_Fans-PWM_Fans-Page1.html

Another solution would be to pull the CONTROL signal off of the cpu fan connector and feed it to rad fans but pull the +12 from somewhere else.

 

[djBon2112]

^^ I've got a Panaflow 120mm (it's only the standard 3-pin connector). Will that do?

Pretty sure this is what I have, only mine doesn't have the RPM sensor. Must be an older revision...

 

[BillParrish]

hmm maybe depends on what features your motherboard has for controlling cpu fan speed. It might could be used, the rpm sense lead is optional on those fans and you dont really need it to do what you are thinking about.

plug a fan in the cpu header and play in your bios , check your manual.