2 fans to one mobo pin

SnowMare · Aug 28, 2016

If i connect two of the same exact PWM fans to one motherboard PWM header using a hub, and i tell those fans to run at 60%, would both of them run at that speed or would both fans be slower because they are both sharing the same connection?

fans in question: 2 corsair ML 120s

clutchc · Aug 28, 2016

Yes, as long as you use a splitter that is like the one here: http://www.newegg.com/Product/Product.aspx?Item=9SIAABJ4666313&nm_mc=KNC-GoogleMKP-PC&cm_mmc=KNC-GoogleMKP-PC-_-pla-_-Cables+-+Internal+Power+Cables-_-9SIAABJ4666313&gclid=CPuOmZTI5c4CFQGqaQodEJcLWw&gclsrc=aw.ds
You'll notice one pin missing from one of the male ends. That is the tach (RPM) feedback. One fan will provide the RPM feedback to the m/b BIOS. The other fan will not. That keeps the BIOS from getting mixed signals.

SnowMare · Aug 28, 2016

clutchc :

so in reality will both fan run at the SAME EXACT RPM and will both run at the correct rpm?

clutchc · Aug 28, 2016

SnowMare :

clutchc :

so in reality will both fan run at the SAME EXACT RPM and will both run at the correct rpm?

Yes, as long as both fans are identical.

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2 fans to one mobo pin

SnowMare

Commendable

clutchc

clutchc

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SnowMare

Commendable

clutchc

Titan

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