Ninja2 with a 4 pin CPU fan connector

ashrack · #1 (**permalink**) 08-23-2008, 01:52 PM

Nowadays all the motherboards use the 4pin connector for the CPU FAN header and sadly motherboard makers have started to discontinue support for FANs with 3 pin CPU connector to be controlled thru bios using Smart Fan or similar.

Since Ninja2 is meant to be quiet why doesn't the FAN use the 4 pin connector (PWM)?
Even with my board I had to request a BIOS fix for my Ninja's fan to operate thru Smart Fan in bios because it is only a 3 pin CPU fan.

3 pin to 4 pin CPU connector

hiroshige · #2 (**permalink**) 08-25-2008, 08:02 AM

Hello ashrack,

usually mainboard with 4pin-connectors do have the option to control the fans with voltage-regulation - so regulation is still possible. On the other hand, you will get problems in regulating 4pin-fans on boards only with 3pin-connectors - that's the reason why Ninja 2 has 3pin.

Cheers,
Stefan

ashrack · #3 (**permalink**) 08-25-2008, 01:21 PM

I see. Thanks for clarification. Unfortunately some motherboard manufacturers nowadays do not want to support fan regulation for 3pin FANs.
For my MB I had to exchange emails for more than week and explaining to them that only a simple bios fix will enable the fan regulation for 3 pin FANs.
It was only after I said that I was a computer science student have they send me the bios which works with a 3pin CPU FAN connector.

I also heard that newer Gigabyte motherboards are the same.
Do you know why the mobo manufacturers are reluctant to support 3 pin CPU FAN connectors for fan regulations?

#1 (permalink) 08-23-2008, 01:52 PM
ashrack Junior Member Join Date: Feb 2008 Posts: 21	Ninja2 with a 4 pin CPU fan connector Nowadays all the motherboards use the 4pin connector for the CPU FAN header and sadly motherboard makers have started to discontinue support for FANs with 3 pin CPU connector to be controlled thru bios using Smart Fan or similar. Since Ninja2 is meant to be quiet why doesn't the FAN use the 4 pin connector (PWM)? Even with my board I had to request a BIOS fix for my Ninja's fan to operate thru Smart Fan in bios because it is only a 3 pin CPU fan. 3 pin to 4 pin CPU connector __________________ Corsair VX-450W, Athlon 5000+ BE@3000MHZ 1.4v /w Scythe Ninja 2, MSI K9a2 Platinum, 2x1GB 800MHz Super Talent 4-4-3-8@2.0v, Sapphire 3850 256MB
	Last edited by ashrack; 08-25-2008 at 07:15 AM..

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#2 (permalink) 08-25-2008, 08:02 AM
hiroshige Marketing & Support Join Date: May 2008 Location: Hamburg Posts: 541	Hello ashrack, usually mainboard with 4pin-connectors do have the option to control the fans with voltage-regulation - so regulation is still possible. On the other hand, you will get problems in regulating 4pin-fans on boards only with 3pin-connectors - that's the reason why Ninja 2 has 3pin. Cheers, Stefan __________________ Scythe EU GmbH Support Hamburg Register and enjoy the official Scythe Forum Compatibility List for Scythe CPU Coolers We do not accept unpaid packages! Wir akzeptieren keine unfreien Zusendungen!

#3 (permalink) 08-25-2008, 01:21 PM
ashrack Junior Member Join Date: Feb 2008 Posts: 21	I see. Thanks for clarification. Unfortunately some motherboard manufacturers nowadays do not want to support fan regulation for 3pin FANs. For my MB I had to exchange emails for more than week and explaining to them that only a simple bios fix will enable the fan regulation for 3 pin FANs. It was only after I said that I was a computer science student have they send me the bios which works with a 3pin CPU FAN connector. I also heard that newer Gigabyte motherboards are the same. Do you know why the mobo manufacturers are reluctant to support 3 pin CPU FAN connectors for fan regulations? __________________ Corsair VX-450W, Athlon 5000+ BE@3000MHZ 1.4v /w Scythe Ninja 2, MSI K9a2 Platinum, 2x1GB 800MHz Super Talent 4-4-3-8@2.0v, Sapphire 3850 256MB