3 pin compatible with 4 pin? (talking about fans)

2008-11-25 16:34:13

#1

Tdog2007: Giggity Giggity; +25|6979|US

My cpu fan is gonna give soon so all i want to do is replace just it but all i find are damn 3 pins and not 4 pins. the 4 pins i find are molex...

are they compatible or do the not make 4 pin fans just by themselves so u have to buy a whole damn heatsink to get one?

need help, fan size needs to be 70mm (stock AM2 heatsink)

2008-11-25 16:36:13

#2

max: Vela Incident; +1,652|6833|NYC / Hamburg

PWM (4pin) fans run on 3pin mobo headers, 3pin fans run on PWM mobo headers. For molex you'll need an adaptor

_{once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.}

2008-11-25 16:38:03

#3

Tdog2007: Giggity Giggity; +25|6979|US

ok good cuz a tech guy i talked to said it wouldnt be wise to do it

EDIT: whats the 4th pin for anyway?

Last edited by Tdog2007 (2008-11-25 16:39:11)

2008-11-25 16:41:00

#4

Sydney: 2λчиэλ; +783|7109|Reykjavík, Iceland.

Tdog2007 wrote:
ok good cuz a tech guy i talked to said it wouldnt be wise to do it

EDIT: whats the 4th pin for anyway?

I've got 3-pin fans in 4-pin plugs and vica versa with no probs at all

2008-11-25 16:41:18

#5

max: Vela Incident; +1,652|6833|NYC / Hamburg

It's the PWM line. It regulates the fan speed

_{once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.}

2008-11-25 16:42:58

#6

Tdog2007: Giggity Giggity; +25|6979|US

ah k so i dont need to do any BIOS crap when i install the new one right?

2008-11-25 16:46:44

#7

Freezer7Pro: I don't come here a lot anymore.; +1,447|6463|Winland

Tdog2007 wrote:
ah k so i dont need to do any BIOS crap when i install the new one right?

Not really, no. The fan will run, but if the BIOS is set to 4-pin, it won't regulate any speed.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-11-25 16:50:20

#8

Scorpion0x17: can detect anyone's visible post count...; +691|7032|Cambridge (UK)

Freezer7Pro wrote:
Tdog2007 wrote:
ah k so i dont need to do any BIOS crap when i install the new one right?
Not really, no. The fan will run, but if the BIOS is set to 4-pin, it won't regulate any speed...

...and therefore should run at 100% all the time. Which is a Good Thing^TM.

Last edited by Scorpion0x17 (2008-11-25 16:50:50)

2008-11-25 16:56:55

#9

Tdog2007: Giggity Giggity; +25|6979|US

alrighty, thanks u all for anwering my nub ?s

BF2S Forums 3 pin compatible with 4 pin? (talking about fans)

Tdog2007 wrote:

Tdog2007 wrote:

Freezer7Pro wrote:

Tdog2007 wrote:

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