Todas as discussões > Fóruns Steam > Hardware and Operating Systems > Detalhes do tópico
DaHotFuzz 19/abr./2017 às 21:36
PWM Case Fans
Do I need to connect them to my motherboard to be able to control them or can they connected to a splitter? I think the answer is yes but it doesn't hurt to ask.

Are PWM fans worth the extra cost also?
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DaHotFuzz 21/abr./2017 às 1:07 
Escrito originalmente por Big Boom Boom:
Those have lower CFM than the A14, but higher pressure if I remember correctly.

There are so many choices, this is maddening. I'm veering towards some kind of Noctua fan though... just don't know which.
#46
Big Boom Boom 21/abr./2017 às 1:37 
Well the Industrial is for overall performance but loud (still very quiet vs other fans). The A series is quiet and provide good CFM. The P series is focused on pressure.
#47
DaHotFuzz 21/abr./2017 às 1:50 
Escrito originalmente por Big Boom Boom:
Well the Industrial is for overall performance but loud (still very quiet vs other fans). The A series is quiet and provide good CFM. The P series is focused on pressure.

I am leaning towards the A series. Turns out I actually only need to get 2 fans, so my budget has increased somewhat. If there is something better, please let me know. I just hope whatever I get is significantly quieter than my corsair ones that are 1500 rpm indefinitely.
#48
Big Boom Boom 21/abr./2017 às 2:07 
https://www.amazon.com/gp/product/B00CP6QLY6/ref=s9_acsd_al_bw_c_x_1_w

Is probably your best choice. Very quiet, and very good airflow for low rpm. Of course you can always go with premium NF-A14 iPPC 67 which is dust resistant, water resistant, bullet proof, explosion dampening.

Fancy yourself a jet engine?
https://www.amazon.com/2TDHHP-Bearing-7000RPM-288-4CFM-Flange/dp/B005S3SQLE/ref=sr_1_6?s=pc&ie=UTF8&qid=1492765808&sr=1-6&refinements=p_n_feature_keywords_browse-bin%3A7015019011

7000 rpm 140mm fan.
Última edição por Big Boom Boom; 21/abr./2017 às 2:11
#49
Seven7 21/abr./2017 às 2:33 
You would recommend to him coolers for blade servers :sadelf: 10000-20000 rpm, combined step by step - he get turbine as on turbojets
#50
DaHotFuzz 21/abr./2017 às 10:05 
Escrito originalmente por Big Boom Boom:
https://www.amazon.com/gp/product/B00CP6QLY6/ref=s9_acsd_al_bw_c_x_1_w

Is probably your best choice. Very quiet, and very good airflow for low rpm. Of course you can always go with premium NF-A14 iPPC 67 which is dust resistant, water resistant, bullet proof, explosion dampening.

Fancy yourself a jet engine?
https://www.amazon.com/2TDHHP-Bearing-7000RPM-288-4CFM-Flange/dp/B005S3SQLE/ref=sr_1_6?s=pc&ie=UTF8&qid=1492765808&sr=1-6&refinements=p_n_feature_keywords_browse-bin%3A7015019011

7000 rpm 140mm fan.

Oh god I laughed hard seeing this. That price tag though. Hypothetically speaking, if one were to install this 7000 rpm fan in their case for... experimental purposes, could they get away with just one fan and not need additional cooling? :)
#51
Seven7 21/abr./2017 às 10:30 
I somehow poured water on the fan on the laptop and for a while I used a self-made turbine of two 80mm fans 800 rpm each - that was enough for gaming
If you seal all the holes in the case, leaving only 2 at the entrance and exit, then perhaps this will be enough ... but your neighbors will not like fighter's turbine howling...
#52
DaHotFuzz 21/abr./2017 às 10:57 
Escrito originalmente por Big Boom Boom:
https://www.amazon.com/gp/product/B00CP6QLY6/ref=s9_acsd_al_bw_c_x_1_w

Is probably your best choice. Very quiet, and very good airflow for low rpm. Of course you can always go with premium NF-A14 iPPC 67 which is dust resistant, water resistant, bullet proof, explosion dampening.

Fancy yourself a jet engine?
https://www.amazon.com/2TDHHP-Bearing-7000RPM-288-4CFM-Flange/dp/B005S3SQLE/ref=sr_1_6?s=pc&ie=UTF8&qid=1492765808&sr=1-6&refinements=p_n_feature_keywords_browse-bin%3A7015019011

7000 rpm 140mm fan.

So I just thought of something. I am using an air cooler for my cpu. With the case I will get, I intend to put two fans on the top. Should these be static pressure because the cpu cooler will be in the way of these fans?
#53
Bad 💀 Motha 21/abr./2017 às 11:13 
Escrito originalmente por DaHotFuzz:
Escrito originalmente por pasa:
https://www.msi.com/Motherboard/support/Z170A-GAMING-PRO-CARBON.html#down-manual indicates that only the cpu fan connectors have PWM, the sysfan headers are just voltage controlled with 4th pin not connected (pg 36).

And speed control described just after, beyond BIOS you can use the command center app.

So I'm not understanding, my motherboard has 4 pin system fan headers but they do not support PWM? How does that make any sense?

Can I only get 3 pin fans knowing this?

Cause you only need PWM for CPU and Radiator.
Case Fans are 3 pin; as they have been for over 10 years. They don't need to be PWM at all even. Not sure why people don't understand this.

Just be fans under 30db and run em at full speed; easy and done.
Última edição por Bad 💀 Motha; 21/abr./2017 às 11:13
#54
pasa 21/abr./2017 às 11:45 
Escrito originalmente por DaHotFuzz:
Escrito originalmente por pasa:
https://www.msi.com/Motherboard/support/Z170A-GAMING-PRO-CARBON.html#down-manual indicates that only the cpu fan connectors have PWM, the sysfan headers are just voltage controlled with 4th pin not connected (pg 36).

And speed control described just after, beyond BIOS you can use the command center app.

So I'm not understanding, my motherboard has 4 pin system fan headers but they do not support PWM? How does that make any sense?

Can I only get 3 pin fans knowing this?

The connectors are kinda universal, you can plug in both 3 and 4-pin things into bothe the 3 and 4-pin header :). The mobo maker may decide to use only one type everywhere.

For practice, yes, if that matches your mobo and you plan to drive the fans from those headers, then no point to buy PWM-capable one as it will work just like a 3-pin simple. But you alos have the option to feed one or more from the the sysfan2.

That is why RTFM and plannin is advised in the first place :) you may need extra cables or something.

IMHO PWM itself is not a big deal, I'd just look for all the other specs of the fan like noise, bearing, CFM, direction, maybe looks, price, pick by those.
#55
pasa 21/abr./2017 às 12:05 
Escrito originalmente por BMGaming:
Case Fans are 3 pin; as they have been for over 10 years.

Not true, zillion of 4-pin, PWM fans on the market. And plenty of mobos support PWM on the sysfan headers too.

> They don't need to be PWM at all even.

I agree with that part in general. Though there may be some application where big variance in CFM is welcome.

The part I don't understand is why the control programs are so lame. I.e the ASUS fan Xpert I use do not allow settings below 40% at all. While in test mode it goes in 10% increments fine. Also seems while it measures both CPU and mobo temperature, the control is based on the former.

I so wish there was an open API for the control part, I'd write my own app instead of this artificial stupidity.
#56
DaHotFuzz 21/abr./2017 às 14:24 
Escrito originalmente por pasa:
Escrito originalmente por DaHotFuzz:

So I'm not understanding, my motherboard has 4 pin system fan headers but they do not support PWM? How does that make any sense?

Can I only get 3 pin fans knowing this?

The connectors are kinda universal, you can plug in both 3 and 4-pin things into bothe the 3 and 4-pin header :). The mobo maker may decide to use only one type everywhere.

For practice, yes, if that matches your mobo and you plan to drive the fans from those headers, then no point to buy PWM-capable one as it will work just like a 3-pin simple. But you alos have the option to feed one or more from the the sysfan2.

That is why RTFM and plannin is advised in the first place :) you may need extra cables or something.

IMHO PWM itself is not a big deal, I'd just look for all the other specs of the fan like noise, bearing, CFM, direction, maybe looks, price, pick by those.

Thank you for the information good sir. I think i have decided to go with the Noctua NF- A 14s. Only thing i am worried about is i heard airflow fans aren't recommended if they are put in front of any obstructions. The top two fans of my case will be blowing air against the cpu cooler (cryorig h7). Shouldn't these two fans up top be static pressure?
#57
Big Boom Boom 21/abr./2017 às 18:19 
Fan on top -> push air out up top. so it's less about your CPU heatsink in the way (unless you mount radiator up top but that's liquid cooling) and more about what blocking your top vent. Realistically speaking there shouldn't be any.
#58
DaHotFuzz 21/abr./2017 às 18:31 
Escrito originalmente por Big Boom Boom:
Fan on top -> push air out up top. so it's less about your CPU heatsink in the way (unless you mount radiator up top but that's liquid cooling) and more about what blocking your top vent. Realistically speaking there shouldn't be any.

Can you phrase that a different way? Sorry, I am not understanding.
#59
Big Boom Boom 21/abr./2017 às 18:37 
Pressure is only important on the side air being blown out. Case fans on top should be exhaust and blow air out of the case. Unless you mount radiator on top and use these fans as push, there's nothing blocking the air being blown out. Air isn't being pushed through heatsink. It's being pushed through whatever mesh or dust filter you have on top of the case.

For example, in push/pull configuration only the push fan is more concerned about pressure. And air cooler heatsink is much less impeding compared to radiator anyway.
#60
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