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[Solved] Gigabyte GA-P55-UD4P

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Best answer from bilbat.

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bobbo1   10-24-2009 at 12:40:31 AM

I bought this mother board and I have a question about fan control with my dual fan CPU cooler (cooler master huyper 212 plus w/ 2 fans) for my I5 system. I cannot figure out for the life of me how to manually set the sys fan 2 to a higher rpm. I tried downloandng the gigabyte easytune 6 utility but for some reason it doesn't want to load. Does anyone know of a program or a way that I can control the speed of my fans individually that are plugged directly into the mother board?

thx:)


Message edited by bobbo1 on 10-24-2009 at 12:48:51 AM
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Best answer from bilbat
This is a piece from GB tech regarding the socket 775 headers - likely they haven't changed much:

Quote :

"CPU_FAN connector needs a CPU cooler with four wires were the PWM modulator is included in the cooler. The mobo senses the CPU temperature and managing the pin 4 signal, the cooler's fan will automatically be increased or decreased, following the CPU temp. Fan's rotation feedback returns via pin 3 for BIOS alarm feature.

SYS_FAN2 connector needs any fan, with three or four wires (don't care) since the speed is controlled via on-board PWM controller that supply pulse-width-modulated 12v for the fan via pin 2. So, if using a four wire fan, its internal PWM is locked to full speed (this explain that fixed 5v on pin 4). This time, the mobo senses the North Bridge (in my case the P35) temperature and will increase or decrease the speed of the fan connected in this socket. Feedback is sent to pin 3 for BIOS alarm purposes.

SYS_FAN1 and PWR_FAN are three pin socket with fixed full speed fan. No controlled rotation at all from the mobo. Rotation feedback also monitored via pin 3 only for BIOS alarm purpose."

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Silver Motherboards badge bilbat   10-24-2009 at 01:26:01 AM

Do you have the latest EasyTune6? Current rev is B9.0918.1, and can be found here:
http://www.gigabyte.com.tw/Support [...] &FileID=86
Uninstall the old before installing the new...

Message quoted 1 times
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bobbo1   10-24-2009 at 01:40:59 AM

bilbat wrote :

Do you have the latest EasyTune6? Current rev is B9.0918.1, and can be found here:
http://www.gigabyte.com.tw/Support [...] &FileID=86
Uninstall the old before installing the new...




Yes, I have uninstalled the easy tune 6 a few times and then re-installed. Once I click on the icon or select it from the programs list it will not load from there which is why I was wondering what other programs are out there. I tried the speedfan application, but that did not allow me to control the fan speed manually. The CPU and System Fan 2 seem to run at completely different speeds which I understand why, but I need to be able have them both un at the same speed variably depending on what the CPU core temp is. Any other ideas? thx for the response.


Message edited by bobbo1 on 10-24-2009 at 01:42:00 AM
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Silver Motherboards badge bilbat   10-24-2009 at 02:36:04 AM
Best answer

This is a piece from GB tech regarding the socket 775 headers - likely they haven't changed much:

Quote :

"CPU_FAN connector needs a CPU cooler with four wires were the PWM modulator is included in the cooler. The mobo senses the CPU temperature and managing the pin 4 signal, the cooler's fan will automatically be increased or decreased, following the CPU temp. Fan's rotation feedback returns via pin 3 for BIOS alarm feature.

SYS_FAN2 connector needs any fan, with three or four wires (don't care) since the speed is controlled via on-board PWM controller that supply pulse-width-modulated 12v for the fan via pin 2. So, if using a four wire fan, its internal PWM is locked to full speed (this explain that fixed 5v on pin 4). This time, the mobo senses the North Bridge (in my case the P35) temperature and will increase or decrease the speed of the fan connected in this socket. Feedback is sent to pin 3 for BIOS alarm purposes.

SYS_FAN1 and PWR_FAN are three pin socket with fixed full speed fan. No controlled rotation at all from the mobo. Rotation feedback also monitored via pin 3 only for BIOS alarm purpose."

Message quoted 1 times
Reply to bilbat
bobbo1   10-24-2009 at 04:50:32 AM

bilbat wrote :

This is a piece from GB tech regarding the socket 775 headers - likely they haven't changed much:

Quote :

"CPU_FAN connector needs a CPU cooler with four wires were the PWM modulator is included in the cooler. The mobo senses the CPU temperature and managing the pin 4 signal, the cooler's fan will automatically be increased or decreased, following the CPU temp. Fan's rotation feedback returns via pin 3 for BIOS alarm feature.

SYS_FAN2 connector needs any fan, with three or four wires (don't care) since the speed is controlled via on-board PWM controller that supply pulse-width-modulated 12v for the fan via pin 2. So, if using a four wire fan, its internal PWM is locked to full speed (this explain that fixed 5v on pin 4). This time, the mobo senses the North Bridge (in my case the P35) temperature and will increase or decrease the speed of the fan connected in this socket. Feedback is sent to pin 3 for BIOS alarm purposes.

SYS_FAN1 and PWR_FAN are three pin socket with fixed full speed fan. No controlled rotation at all from the mobo. Rotation feedback also monitored via pin 3 only for BIOS alarm purpose."





Thank you very much. That helps. I should be able to just go into the BIOS and set the PWM controller instead of leaving at auto correct?

thanks again.

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