[Solved] Fan controll

I tryed in the mobo area didnt get any reply maybe someone can help

Hello all, Thanks for stoping by I would like to know how to set my case fan to high there pluged into the mono CPU fan 1 and power fan. I seen a setting to run my CPU fan to full RPMs but dont see whare to max out the case fans, and one of the case fans goes from 0 RPMs to 1300 RPMs this one is pluged into the mobos power fan.

Or would it be better to add a fan controller for the case fans

Thanks Nik

------------------------------ P55-UD4P / i5 750 @ 3.6 180X20 / GSkill 1600 @ 1420 7-7-7-22 / WD Black 640 / HD 5850 / Corsair 750 / Win 7

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If your case fan is connected to the mobo, then you can regulate the speed. But if it is connected directly to the PSU via 4-pin molex cable then you can't unless you install a fan controller in your system. (or do some mod to the wires)

Reply to masterjaw

my 2 case fans are connected to the mobo, but in the bio i dont see a option to raise the RPM of the fans. I only see in the bio where to raise the CPU fan speed .

------------------------------ P55-UD4P / i5 750 @ 3.6 180X20 / GSkill 1600 @ 1420 7-7-7-22 / WD Black 640 / HD 5850 / Corsair 750 / Win 7
Reply to niklas_13

Try using speedfan.

http://www.almico.com/sfdownload.php

Reply to masterjaw

Thanks M8

------------------------------ P55-UD4P / i5 750 @ 3.6 180X20 / GSkill 1600 @ 1420 7-7-7-22 / WD Black 640 / HD 5850 / Corsair 750 / Win 7
Reply to niklas_13

First of all, your post says you have BOTH case fans plugged into the wrong ports on the mobo. A mobo has two ports you CANNOT use for case fans, and those are the ones you used!

The port marked CPU_FAN MUST be used only for the cooler on the CPU. The port marked Power Fan or PWR_FAN may be used to plug in a special fan-type connector on wires coming out of the Power Supply. It does NOT offer any control of the fan in the PSU - it merely allows the mobo to monitor what speed it runs. If you don't have such a connectpor coming out of the PSU, then do not connect anything else to the mobo port for PWR_FAN.

Case fans should only be connected to ports marked SYS_FAN1 and SYS_FAN2.

Message quoted 1 times

Reply to Paperdoc

Paperdoc wrote :

First of all, your post says you have BOTH case fans plugged into the wrong ports on the mobo. A mobo has two ports you CANNOT use for case fans, and those are the ones you used!

The port marked CPU_FAN MUST be used only for the cooler on the CPU. The port marked Power Fan or PWR_FAN may be used to plug in a special fan-type connector on wires coming out of the Power Supply. It does NOT offer any control of the fan in the PSU - it merely allows the mobo to monitor what speed it runs. If you don't have such a connectpor coming out of the PSU, then do not connect anything else to the mobo port for PWR_FAN.

Case fans should only be connected to ports marked SYS_FAN1 and SYS_FAN2.

Yep your right, I must of been tired when i typed this.

I have my CPU fan in the CPU_FAN

1 Case fan in SYS_FAN 1

1 Case fan in SYS_FAN 2

None in PWR_FAN

But in the BIOs i can only controll the CPU RPMs

------------------------------ P55-UD4P / i5 750 @ 3.6 180X20 / GSkill 1600 @ 1420 7-7-7-22 / WD Black 640 / HD 5850 / Corsair 750 / Win 7
Reply to niklas_13

Best answer

Yep, you're connected properly. I looked at your mobo's manual and it does show there is NO way to control case fan speeds - it only monitors speeds to show them to you and alarm a failed fan. Weird, considering they used a 4-pin connector for SYS_FAN2 and its only advantage over 3-pin is the ability to control the fan speed a different way.

Your first problem, though, was how to make sure the case fans are running at full speed. To start with, are you sure they are not? If the mobo connectors provide full voltage to the fans, you won't get more speed any other way. Compare the fan speed readouts in the BIOS PC Health Status page with fan maker's specs.

If your fans are not running full speed the only way I know to speed them up is to disconnect them from the mobo and use an adapter to connect them instead directly to a Molex power connector from the PSU. This will give them full voltage and speed at all times unless you also install a small fan speed controller (manually set) in there. However, this also means that the mobo will NOT have any SYS_FAN speed signals, so it can't tell you the speeds, and you MIGHT have to set the BIOS to ignore or disable those SYS_FAN monitors so it does not put out alarms for a "failed fan" that is simply not connected to the mobo port.

Message quoted 1 times

Reply to Paperdoc

Paperdoc wrote :

Yep, you're connected properly. I looked at your mobo's manual and it does show there is NO way to control case fan speeds - it only monitors speeds to show them to you and alarm a failed fan. Weird, considering they used a 4-pin connector for SYS_FAN2 and its only advantage over 3-pin is the ability to control the fan speed a different way.

Your first problem, though, was how to make sure the case fans are running at full speed. To start with, are you sure they are not? If the mobo connectors provide full voltage to the fans, you won't get more speed any other way. Compare the fan speed readouts in the BIOS PC Health Status page with fan maker's specs.

If your fans are not running full speed the only way I know to speed them up is to disconnect them from the mobo and use an adapter to connect them instead directly to a Molex power connector from the PSU. This will give them full voltage and speed at all times unless you also install a small fan speed controller (manually set) in there. However, this also means that the mobo will NOT have any SYS_FAN speed signals, so it can't tell you the speeds, and you MIGHT have to set the BIOS to ignore or disable those SYS_FAN monitors so it does not put out alarms for a "failed fan" that is simply not connected to the mobo port.

Thanks for the info and help!!!

I did look @ the RPM of the fans and its @ 1300 RPM

I might pick up a differnt fan that runs @ maybe 2000 RPM and moves more air

------------------------------ P55-UD4P / i5 750 @ 3.6 180X20 / GSkill 1600 @ 1420 7-7-7-22 / WD Black 640 / HD 5850 / Corsair 750 / Win 7
Reply to niklas_13

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Forum Homebuilt Systems : General Homebuilt - [Solved] Fan controll