Chassis Fan Control

Shootist said:

se fan and 1 120mm CPU fan in my system. 2 of them connect to 3 pin headers. The other one connects to the secondary 4 pin header, CPU fan to the CPU header. All of them, including the CPU fan which is 4 pin, are controlled by the BIOS settings and set to Silent which makes them run at around 800RPM, including the CPU fan. If the system starts to get hot the BIOS raises there speed accordingly. CPU first as that is what gets the hottest.

The BIOS lowers or raises the voltage supplied to the fans to increase or decrease there speed.

Yours might but if I'm reading the manual for Un4GiVeN78's motherboard, it will only control fans connected to the 4 pin headers,



which would leave any fans connected to either of the 3 pin headers running at full speed.

whereas yours (and mine for that matter) has Asus' Q-Fan option which does allow for. Also not to say it isn't possible, but do you really think that the PWR_FAN header would have any kind of fan control on it? Not sure that it would be a good idea to let anything other than the power supply itself regulate its fan. Then again when was the last time you saw a power supply that had its fan connected to the motherboard?

Ciara said:

Hi Un4GiVeN78 :)

To make Speedfan work you need to put a tick in Automatic Fan Speed honey

p5bdkw said:

Ciara said:

Hi Un4GiVeN78 :)

To make Speedfan work you need to put a tick in Automatic Fan Speed honey

That's quite easy.
Who knew!!
Thanks

I tried to put a tick in Automatic Fan Speed and almost everything possible to control it, I guess it's hardware issue.

I must do something in the hardware before using that program to allow me controlling it.

Thank you guys <33

Well I'm really not sure what that PWR_FAN header if for. IMHO it certainly isn't for the power supply fan. They are all internal to the PSU with there own internal speed control and temp sensor.

Honestly I haven't seen a PSU with a external wire for fan control or power in a long time, if ever.

stormy13 said:

A 3 pin to 4 pin adapter won't allow for fan speed control for one very simple reason, there is no 4th wire from the fan itself which is what is needed for that to happen.

Shootist said:

stormy13 said:

A 3 pin to 4 pin adapter won't allow for fan speed control for one very simple reason, there is no 4th wire from the fan itself which is what is needed for that to happen.

Not really. I have 3 120mm 3 pin case fan and 1 120mm CPU fan in my system. 2 of them connect to 3 pin headers. The other one connects to the secondary 4 pin header, CPU fan to the CPU header. All of them, including the CPU fan which is 4 pin, are controlled by the BIOS settings and set to Silent which makes them run at around 800RPM, including the CPU fan. If the system starts to get hot the BIOS raises there speed accordingly. CPU first as that is what gets the hottest.

The BIOS lowers or raises the voltage supplied to the fans to increase or decrease there speed.

stormy13 said:

Shootist said:

se fan and 1 120mm CPU fan in my system. 2 of them connect to 3 pin headers. The other one connects to the secondary 4 pin header, CPU fan to the CPU header. All of them, including the CPU fan which is 4 pin, are controlled by the BIOS settings and set to Silent which makes them run at around 800RPM, including the CPU fan. If the system starts to get hot the BIOS raises there speed accordingly. CPU first as that is what gets the hottest.

The BIOS lowers or raises the voltage supplied to the fans to increase or decrease there speed.

Yours might but if I'm reading the manual for Un4GiVeN78's motherboard, it will only control fans connected to the 4 pin headers,



which would leave any fans connected to either of the 3 pin headers running at full speed.

whereas yours (and mine for that matter) has Asus' Q-Fan option which does allow for. Also not to say it isn't possible, but do you really think that the PWR_FAN header would have any kind of fan control on it? Not sure that it would be a good idea to let anything other than the power supply itself regulate its fan. Then again when was the last time you saw a power supply that had its fan connected to the motherboard?

Hmm.. you're killing me guys

I can see from the M.B. manual that when Enabled allow system to run the FAN according system temp. It's already Enabled and running @ maximum speed which means my system temp. may be too hot so that the system run it @ full speed. Here's a screen shot of PC temp.

Or

maybe Enabled working like Disabled they both work @ max speed and it's all pretending

Shootist said:

Well I'm really not sure what that PWR_FAN header if for. IMHO it certainly isn't for the power supply fan. They are all internal to the PSU with there own internal speed control and temp sensor.

Honestly I haven't seen a PSU with a external wire for fan control or power in a long time, if ever.

Bytheway, I think my PSU (OCZ 600 WATT) is frying because i tried to replace its fan because of noise coming from it, but the store guy told me that the stock fan is the best fan already and there's no any silent replacement and he gave me " AKAI BLUE " something like spray and when i used it on the PSU fan it made the sound much much louder.
Moreover SpeedFan showing i have 79 degree temp(look at the screen shot i sent earlier) on a piece of my PC and i think that's the PSU.

So, maybe the system fan is running @ max speed coz of it. idk

Thanks guys for your help i appreciate it all