Appropriate case fan

Hayden22

Reputable
Jan 19, 2016
56
0
4,630
Hello again i come to you for the second time this week just for some clarification . I am in the process of improving the cooling of my case and in doing so i got a bit confused between these two case fans and which would be more appropriate for my situation. my case the bitfenix comrade allows for the addition of two extra 120mm fans in the front of my case and like my other cases directly behind the fan space are my hd/ssd bays which more then likely would create some airflow resistance and knowing that i'm on the fence of which of the too fans would work the best.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835352021&cm_re=fractal_design_venturi_hf-12-_-35-352-021-_-Product

( From what i understand so far the venturi hf 12 fans or ones that a similar are great for spaces where there is little or no resistance such as in the back of the case where the air is exhausted which would allow for great airflow.)

http://www.fractal-design.com/home/product/casefans/venturi-series/venturi-hp-12-pwm

(But with the venturi hp 12 or similar they are perfect for places such as on radiator and cpu coolers where there is a lot of resistance and that air need a forceful push to get though.)


To summarize i'm just wondering which case fan is more suited to push air though the hd/ssd bays with the minimal effort.


On a side note would it be best to have my future 2 front case fans pulling air in to my case while having the back exhaust it or have all of them exhaust the hot air leaving the air to find its own way in or would that create a negative airflow.

Hopefully this thread is not to long and thank you in advance for taking the time to help me.

 
Solution


Fan Hub
http://www.newegg.com/Product/Product.aspx?Item=N82E16811984004

120mm fans (also available w/ white. red, blue and orange LEDs)
http://www.newegg.com/Product/Product.aspx?Item=N82E16835709032

140mm fans (also available w/ white. red, blue and orange LEDs)
http://www.newegg.com/Product/Product.aspx?Item=N82E16835709023

Front, bottom and side fans as intakes / top and rear as exhausts ... radiator fans always blow in, no...

Hayden22

Reputable
Jan 19, 2016
56
0
4,630


sorry if i did not clarify this properly i'm not looking to cool the hd/ssd's themselves i want to lower the overall temperature of my case by adding the extra 120mms fans but the drive bays are directly behind the fans themselves therefore creating that airflow resistance i'm am just wondering which type of case fan would be more suited to move the air past them.
 
My take is we are talking about case cooling and not SSD / HD cooling ... the HD cages being mentioned only as it related to air flow restriction. Hi SP fans have all but disappeared. These were popular in the heyday of hi FPI radiators where the tight fin spacing led to very high physical resistance. Today, they have very little applicability outside of usage on CLCs where high rpm fans are needed to compensate for the poor heat transfer of the aluminum radiator.

You don't have a radiator ... the restriction of a typical HD cage is no where close to that of a radiator. To provide the best case air flow, you can remove any unused HD cages. I use Phanteks F140SPs (standard pressure) in case fronts (140mm) ... they also exist an a MP (medium pressure) version.. I use the 1200m size to mount on the back of HD cages to blow air between HD cages when needed/
 
It's a big debate, and probably makes little difference in actual use, but I would go with the HF (high flow) fans since they are not being placed on a radiator or heatsink. Have the two front fans bring air in. Having all exhaust fans is not good for cooling and it means that all the incoming air will be unfiltered (dust).
 

Hayden22

Reputable
Jan 19, 2016
56
0
4,630
First of i'd like to thank everyone for the quick response and while were on case fans i'm in need a a fan slitter as my mobo will only allow for 1 additional case fan to be connected and that is going to be used up by my cpu cooler fan so if you have any suggestions it would be greatly appreciated.
 


Fan Hub
http://www.newegg.com/Product/Product.aspx?Item=N82E16811984004

120mm fans (also available w/ white. red, blue and orange LEDs)
http://www.newegg.com/Product/Product.aspx?Item=N82E16835709032

140mm fans (also available w/ white. red, blue and orange LEDs)
http://www.newegg.com/Product/Product.aspx?Item=N82E16835709023

Front, bottom and side fans as intakes / top and rear as exhausts ... radiator fans always blow in, no exceptions

Pin count is meaningless on modern boards as most current boards support PWM / DCV fans on all headers. Pin count does NOT indicate the type of header. Z87 boards typically have PWM CPU headers and DCV CHA headers though all are 4 pin.

PWM headers require PWM fans and it is not advisable to control PWM devices with DCV. PWM provides superior speed control in that it is able to run fans better at low speeds. The downside is the clicking / humming noise sometimes associated w/ PWM.

The hub linked above provided the bast of both worlds.

-Using a PWM header it can control up to 11 and with the aux power connector

-Using a DCV header, you can't use the power connector, and can't exceed 1 amp total running load (usually about 6 fans)
 
Solution

Hayden22

Reputable
Jan 19, 2016
56
0
4,630


i am think of buying two fractal design venturi hf 12 fans plus the 120mm fan that comes with my cpu cooler the cryorig h7
 

Hayden22

Reputable
Jan 19, 2016
56
0
4,630

The venturi fans are 3 pin while my mobo has an 2 4 pin case fan header one of which is already used up with the fan that came with my case
 
Last try .... again, having a 4 pin header is meaningless, it can be either PWM or DCV . Three choices:

1. Read the manual to determine header type (PWM, DCV or selectable)
2. List your MoBo model and have one of the forum members look it up for you.
3. Use the Hub / Splitter linked above and it doesn't matter.
 

Hayden22

Reputable
Jan 19, 2016
56
0
4,630



Sorry if i made a mistake i'm new to this stuff so i'm not well educated on it and once again thank you for your help i'll have to take a closer look at it before i move on and if it helps my mobo is a asus z97m plus
 
Z97 boards typically have 4 pin headers that can go either PWM or DCV. Using the Phanteks hub, you don't have to care ... and it solves your splitter problem a lot more neatly than wire splitters.

https://www.asus.com/Motherboards/Z97MPLUS/HelpDesk_Manual/
http://dlcdnet.asus.com/pub/ASUS/mb/LGA1150/Z97M-PLUS/E9678_z97m-plus_guide_V2_web_only.pdf

See page xii

1 x 4-pin CPU Fan connector for both 3-pin (DC mode) and 4-pin (PWM mode) CPU coolers control**
2 x 4-pin Chassis Fan connectors for both 3-pin (DC mode) and 4-pin (PWM mode) coolers control

page 1-18

• The CPU fan connector detects the type of CPU fan installed and automatically switches the control modes. To configure the CPU fan’s control mode, go to Advanced Mode > Monitor > CPU Q-Fan Control item in BIOS.
• The chassis fan connectors support DC and PWM modes. To set these fans to DC or PWM, go to Advanced Mode > Monitor > Chassis Fan 1/2 Q-Fan Control items in BIOS.

So it would appear that you have:

-CPU header is taken by CPU cooler and it auto set the fan type

-1st CHA header is taken by a 3 pin fan, you need to go into the BIOS and manually set this fan to DCV

Now you wanna add 2 fans but only have 1 header.

1st choice..... use the Phanteks hub linked above and connect all three 3-pin case fans to the hub; connect the cable feeding the hub from the MoBo to CHA 1 header. Go into BIOS and set the CHA 1 header to PWM control. The hub will then take the PWM signal and convert it to a DC voltage signal and control the 3 pin fans. lave the CHA 2 header empty.

The fans you linked to... the biggest one was 0.2 amps so three of them is certainly < the 1.0 amp header rating. You therefore do not need to connect the aux power cable to the hub but could if you want to. I would not put more than 4 of those 0.2 amp fans on the hub.

2nd choice - Grab these:

3 pin fan hub $4.50
http://www.frozencpu.com/products/14661/ele-987/3-Pin_Power_Distribution_PCB_3xWay_Block_MMT-PCB-3WAY.html?tl=c121s424b214

12" cable - $3.29 (get longer if you need)
http://www.frozencpu.com/products/15748/cab-839/ModMyToys_3-Pin_Female_to_3-Pin_Female_Cable_Adapter_-_12_-_Sleeved_Black_MMT-FC-33-12-BK.html

For this you would have to set the BIOS to DCV fan control on this header. Run the cable from CHA 1 to th PCB, and then connect all 3 fans to the PCB

That's two solutions, one for $20 and one for $8 but by time shipping included, sure they will get closer. The $20 solution is far more flexible, allows use of PWM or DCV and allows future additions up to 11 fans.