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Question regarding 3pin and 4pin fans on Asus Z87 - Page 2

post #11 of 22
You can following options:

1) You can usually run up to 3 fans from 1 header (I wouldn't run more than 2).
2) Buy PWM fans and use that Swiftech splitter.
3) Get a fan controller that can use PWM signal from a motherboard to increase or decrease speed of the fans like this one.
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post #12 of 22
Quote:
Originally Posted by steven88 View Post

Thanks dexel and ghostrider

What would you suggest I do if I want to run 8 3pin fans off of mobos...but WITHOUT a fan controller? The reason why I want to use the mobo is for the automatic slow down & ramp up....so while I'm gaming, and the CPU gets taxed, the fans will automatically spin up.

The mobo I'm looking at only has three chassis fan connectors and two CPU connectors (Maximus 6 Hero)....I know I previously said Z87 PRO, but I changed my mind biggrin.gif

get pwm fans instead? or get some silent fans so that you don't have to worry about controlling it.
post #13 of 22
Thread Starter 
Grrr...I was hoping to save some money and get the 3pin version. The noctuas i'm looking at, the PWM versions are about $4 more per fan (I need 8 of them)....I guess I'll get the PWM version and just stop crying...lol

Anyway, so if I buy the PWM version of the Noctuas...its guaranteed to work with the Swiftech PWM box without issues right? Only the 3pin fans won't work with the Swiftech PWM box
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post #14 of 22
Quote:
Originally Posted by steven88 View Post

Grrr...I was hoping to save some money and get the 3pin version. The noctuas i'm looking at, the PWM versions are about $4 more per fan (I need 8 of them)....I guess I'll get the PWM version and just stop crying...lol

Anyway, so if I buy the PWM version of the Noctuas...its guaranteed to work with the Swiftech PWM box without issues right? Only the 3pin fans won't work with the Swiftech PWM box

yup
post #15 of 22
Thread Starter 
Quote:
Originally Posted by DeXel View Post

You can following options:

1) You can usually run up to 3 fans from 1 header (I wouldn't run more than 2).
2) Buy PWM fans and use that Swiftech splitter.
3) Get a fan controller that can use PWM signal from a motherboard to increase or decrease speed of the fans like this one.

Hey I noticed you mentioned you wouldn't run more than 2 fans off one header. So would you advise against using the Swiftech PWM box?
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post #16 of 22
Quote:
Originally Posted by steven88 View Post

Hey I noticed you mentioned you wouldn't run more than 2 fans off one header. So would you advise against using the Swiftech PWM box?

the swiftech pwm splitter draws power directly from the power supply so it doesn't overload the motherboard.
post #17 of 22
Quote:
Originally Posted by steven88 View Post

Hey I noticed you mentioned you wouldn't run more than 2 fans off one header. So would you advise against using the Swiftech PWM box?

Quote:
Originally Posted by ghostrider85 View Post

the swiftech pwm splitter draws power directly from the power supply so it doesn't overload the motherboard.

^ this.
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post #18 of 22
Thread Starter 
Thanks dexel & ghostrder, I have one more question

So far the plan is to run the Swiftech PWM box and 8 Noctua PWM fans. Now the 8 Noctua fans, they will be a mixture. Not all 8 of them will be the "same" kind.

http://www.amazon.com/Premium-Quality-Cooling-NF-A15-PWM/dp/B00AED7XFI/ref=sr_1_1?ie=UTF8&qid=1377233433&sr=8-1&keywords=noctua+nf-a15

http://www.amazon.com/Anti-Stall-Bearing-PWM-Cooling-NF-S12A/dp/B00BEZZBFO/ref=sr_1_2?ie=UTF8&qid=1377233456&sr=8-2&keywords=noctua+nf-s12a

http://www.amazon.com/Noctua-NF-A14-PWM-140x140x25mm-1200rpm/dp/B00CP6QLY6/ref=sr_1_1?ie=UTF8&qid=1377233550&sr=8-1&keywords=noctua+nf-a14+pwm

So my question is, will it be an issue since I am mixing and matching different sizes & RPM of fans? They are all PWM, so I got that covered....but some of them run at different RPMs, and theres also 120mm vs 140mm....so I'm just wondering if it will be an issue if I connect different kinds of fans onto that Swiftech PWM BOX? Thanks in advanced!

Btw I learned something just now....it appears one of the benefits of PWM vs 3pin...PWM versions can run very low RPMs (300rpm) whereas 3pin fans generally cannot sustain that low of an RPM....so I guess going with a PWM fan is optimal if you are extremely picky about noise....hehe
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post #19 of 22
They will probably run at different RPM at the same PWM signal, but to be safe just run them of 3 separate channels. All Asus boards I know have at least 3 fan headers anyway.
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post #20 of 22
Quote:
Originally Posted by steven88 View Post

Thanks dexel & ghostrder, I have one more question

So far the plan is to run the Swiftech PWM box and 8 Noctua PWM fans. Now the 8 Noctua fans, they will be a mixture. Not all 8 of them will be the "same" kind.

http://www.amazon.com/Premium-Quality-Cooling-NF-A15-PWM/dp/B00AED7XFI/ref=sr_1_1?ie=UTF8&qid=1377233433&sr=8-1&keywords=noctua+nf-a15

http://www.amazon.com/Anti-Stall-Bearing-PWM-Cooling-NF-S12A/dp/B00BEZZBFO/ref=sr_1_2?ie=UTF8&qid=1377233456&sr=8-2&keywords=noctua+nf-s12a

http://www.amazon.com/Noctua-NF-A14-PWM-140x140x25mm-1200rpm/dp/B00CP6QLY6/ref=sr_1_1?ie=UTF8&qid=1377233550&sr=8-1&keywords=noctua+nf-a14+pwm

So my question is, will it be an issue since I am mixing and matching different sizes & RPM of fans? They are all PWM, so I got that covered....but some of them run at different RPMs, and theres also 120mm vs 140mm....so I'm just wondering if it will be an issue if I connect different kinds of fans onto that Swiftech PWM BOX? Thanks in advanced!

Btw I learned something just now....it appears one of the benefits of PWM vs 3pin...PWM versions can run very low RPMs (300rpm) whereas 3pin fans generally cannot sustain that low of an RPM....so I guess going with a PWM fan is optimal if you are extremely picky about noise....hehe

there will be no problem, pwm varies speeds by percentage, like all fans will run at 50% of their speed, or 75%, etc.
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