PWR_Fan is for?

[chargeit]

Ok, what connects to PWR_Fan?

I've read many different views, and, I'm trying to sort it out.

I know that if it were simply a case fan connection it would be called case fan, and not pwr_fan.

So, what is this? Please, I don't want opinions, I want the answer. Also, post a website that has more information about it if possible.

Sorry about being blunt, but, I see a lot of people answering what it is, yet seeming to not know what they are talking about, these people need not answer.

Thanks

 

[Sn1992-1361850]

The pwm fan is a fan that has variable rpms and is adjustable
And it can be used even as a case fan

 

[chargeit]

The pwm fan is a fan that has variable rpms and is adjustable
And it can be used even as a case fan

Thank you. Nice, simple answer.

Ok, I'll use it as a case fan connection.

 

[Sn1992-1361850]

Glad it helped
Yeah great option

 

[chargeit]

Glad it helped
Yeah great option

Yea, I was 1 fan out, that would of been hooked to PSU, but, now I'm good. 3 on Mobo, and 3 on controller. 😀

 

[Sn1992-1361850]

Yeah great cooling man

 

[MendoraXII]

The PWR_FAN port on a mobo is intended for a special purpose. Some PSU's have wires coming out to a common 3-pin fan connector. Their real purpose is to feed the speed signal from the PSU's internal fan back to this mobo port for monitoring and display. That fan is NOT powered or controlled by this mobo pinout - only the speed signal is used. If your PSU does NOT have this connector (and many do not) you simply do not connect anything to this mobo port.

However, posts elsewhere in these fora indicate that some mobo ports like this actually do have all the normal wiring of a 3-pin fan connector and so it CAN provide power to a case fan. However, it has NO ability to control that fan's speed so it will run full speed all the time, just as if it were plugged into a PSU 4-pin Milex power connector.

Most often a case fan should be connected to one of the SYS_FAN ports on the mobo. At least some of those (maybe all) can be configured to vary fan speed according to temperature actually measured by a sensor built into the mobo.

http://www.tomshardware.com/forum/290731-28-tomshardware

 

[chargeit]

The PWR_FAN port on a mobo is intended for a special purpose. Some PSU's have wires coming out to a common 3-pin fan connector. Their real purpose is to feed the speed signal from the PSU's internal fan back to this mobo port for monitoring and display. That fan is NOT powered or controlled by this mobo pinout - only the speed signal is used. If your PSU does NOT have this connector (and many do not) you simply do not connect anything to this mobo port.

However, posts elsewhere in these fora indicate that some mobo ports like this actually do have all the normal wiring of a 3-pin fan connector and so it CAN provide power to a case fan. However, it has NO ability to control that fan's speed so it will run full speed all the time, just as if it were plugged into a PSU 4-pin Milex power connector.

Most often a case fan should be connected to one of the SYS_FAN ports on the mobo. At least some of those (maybe all) can be configured to vary fan speed according to temperature actually measured by a sensor built into the mobo.

http://www.tomshardware.com/forum/290731-28-tomshardware

Thanks for the post. I had read it was used for the PSU fan, my PSU doesn't need the connection. After reading my mobo manual, it said the same thing you posted above.

 

[harounfairin]

is it ok to use it as cpu fan