pwm case system fan

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I've got a sys fan 4 pin socket on my new mobo (foxconn p35a) as well as the cpu one.
Is this the sort of fan I need ?
http://www.overclockers.co.uk/showproduct.php?prodid=FG-008-AR

Are there any other makes or cheaper ones?

And would it be ok to run 2 fans from the same socket?

Lastly this is my first post, so hello everybody:)

BTW great forum, I based my PC upgrade around recommendations I found, and alls well (so far:D)
 
Thing is I want the case fan speed to be controlled so less noise.
Its never clear from all the online shops what type of fan it is :confused:
 
I love these. The Gigabyte 4-pin controller will actually turn them off if the case is cool enough - which it quite often is, at idle.

And you can daisy-chain them to run upto 4 fans off one fan header.
 
Well I finally got a 4 wire fan, connected it to the sys fan header and then found that theres no settings in the bios to control it :p
So what is the point of having a sysfan header :confused:
 
Your CPU fan is the most likely to be controllable in BIOS. OCUK sell an AKASA splitter cable that lets you run several PWM fans off the CPU fan header.
 
Oh and Foxconn have just replied to my query, you can't control the sys fan with the p35a mobo.
Glad I didn't buy the fan, it was only someones spare :)
 
Does anyone know of a way to get a 3pin fan working with PWM? I've got fans built into my HTPC case that I don't want to replace and I'm using one of them instead of a CPU fan (with a passive sink). The BIOS doesn't have an option for changing speed by voltage changes.

Currently it stays at 1000 RPM even when the CPU is at room temperature, which is pretty annoying in a supposed-to-be-quiet system :)

I'm thinking about wiring in the control circuit board from a stock cooler to do the voltage control, is there any reason why that won't work?
 
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Baboonanza said:
Does anyone know of a way to get a 3pin fan working with PWM? I've got fans built into my HTPC case that I don't want to replace and I'm using one of them instead of a CPU fan (with a passive sink). The BIOS doesn't have an option for changing speed by voltage changes.

Currently it stays at 1000 RPM even when the CPU is at room temperature, which is pretty annoying in a supposed-to-be-quiet system :)

I'm thinking about wiring in the control circuit board from a stock cooler to do the voltage control, is there any reason why that won't work?
Click to expand...

Akasa 3-Pin to 4-Pin Adapter Cable
 
I can't see how that would work? Unless the picture is completely wrong :confused:

After a bit more research it seems I want something like the 'nanoxia pwmx'.
 
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It wouldn't work, thats a molex to 3 pin adapter. It'll run your fan at 12V all the time. PWM fans have circuitry inside which is required for this function to work, takes more than a simple cable to convert a 3 pin fan to a pwm one.

The nanoxia thing simulates this by varying the voltage applied down the 3 pin wire and pulsing it, and probably works very well. Doubt it's cheaper than a new fan.

3 pin fans can control their speed quite well incidentally, just not to as fine an extent as pwm fans can. There's also no particularly good reason why pwm fans need 4 wires, I think it's a backwards compatibility thing more than anything else.
 
I the end I've decided to just replace the offending fan. It does work out about £5 more expensive but as a bonus I get a much better fan, the Akasa AK-FN057. Unfortunately I've had to order it from another e-tailer as OcUK were going to charge £4.98 fro second class postage, which is a bit ridiculous.
 
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