I figured it out, I wasn't thinking properly. I will have to remove the 4 pin molex and add pins to the 3 pin, recrimp the black/red wires to the 3 pin and I should be good to go.

Hi I am thinking of buying these fans  Scythe Kaze Jyuni Slip Stream 120mm Fan 1900 RPM : SY1225SL12SH
 
Now this fan has :
Model
Manufacturer    Scythe
Model Number                 SCY1225SL12SH
Specification
Dimensions        120 x 120 x 25 mm
Air Flow                110.3 CFM
Noise    37 dBA
Speed   1900 RPM
Connector Type                3 pin
4 pin Molex
Open or Closed Corners                Open
Bearing Type      Sleeve
LED Colour          N/A
Approx Cable Length      30 cm
Special Features               Low Noise Fan
3 pin to 4 pin Molex Converter Cable
Package Contents            1 x Fan
4 x Mounting Screws
3 pin to 4 pin Molex Converter Cable
Warranty             24 Months
Wow that Air Flow 110.3 CFM
 
And also this Prolimatech 140 x140 x 25mm Blue Vortex Case Fan
 
Now this fan has :
Manufacturer    Prolimatech
Model Number                 Blue Vortex 14
Specification
Dimension          140 x 140 x 25mm
Air Flow                87 CFM
Noise    18.1 dBA
Speed   1000 RPM
Connector Type                3 Pin
4 Pin Molex
Open or Closed Corners                Closed
Bearing Type      Sleeve
LED Colour           
Approx Cable Length      30cm
Package Contents            1 x Fan
1 x 3 to 4 pin connector
4 x Fan Screws
Wow that Air Flow 87 CFM
So do you think I should buy these fans? The Air Flow in these fans are mad and really good. Do you think they are any good?
 

I’m going to get this
Scythe Gentle Typhoon 120mm x 25mm Fan - 5400 RPM (D1225C12BBAP-31)
and
Thermalright TY-140
Thank you for this topic but can I ask how often does this this topic get updated?
I don’t care to much about fancy lights as you can see I have chosen the very best fans

Hi Thermalright TY-140 is not the fastest check this
BGears B-Blaster 140mm x 25mm 1800RPM High Speed Fan
Speed: 1800 Current: 0.45A Power: 5.40W Airflow: 103CFM Pressure: 3.50mmH20 Voltage: 12 Noise: 36dBA Frame Size: 140x25mm Bearing: 2 Ball LED: None

I doubt you will see much, in terms of dropping your temps further with a 5000rpm fan. I think 2000 is plenty for the H70 rad. 
 
It's not the most efficient design (the H50 or H70), and 5000+ rpm fans I would be willing to bet, offer maybe 1c difference over 2000rpm fans, at the expense of your computer sounding like a 24/7 space shuttle or something.

Great thread, I didn't know it was better to use 120x38 fans on a radiator.

fishys87

farthestkris

hiya gunner i want some high end 140 mm fans that are 70-120cfm and are below 40dba any ideas ?

btw awesome post !


-Kris  

Aerocool Shark, Noise Blocker, etc. 

My two choices are from the above offerings. 

those aerocool sharks are awesome ! just what i was looking for ! 

boredgunner

farthestkris

hiya gunner i want some high end 140 mm fans that are 70-120cfm and are below 40dba any ideas ?

btw awesome post !


-Kris  

I'd go for the Thermalright TY-140 but keep in mind it has 120mm mounting holes.  Otherwise I'd go for Yate Loon or Xigmatek 140mm fans.

im using them on rads so i think im going to go with Xigmatek or Aerocool Sharks one or the other 

boredgunner

None of them have good static pressure to be honest.  NoiseBlocker's highest RPM 140mm fan has a static pressure that is similar to that of a Thermalright TY-140, which has a much lower RPM so less noise.  You can always go for some Delta 140mm x 38mm fans if you're up for it.  

was thinkin about it TBH just couldnt find one ! im goin for extreme 

fishys87

Why is good static pressure necessary for case fans? 

And there's not very many companies with realistic "SP" numbers.. 

there not case fans  there rad fans 

yeah true... deltas are kinda loud 

bookmarked...but definitely interested in how the new gentle typhoon sounds like undervolted

Patches,
 
You can go with either this for the fans you have now:
http://www.frozencpu.com/products/4283/ex-rad-88/Black_Ice_GT_Stealth_360_Radiator_-_Black.html?tl=g30c95s161
 
or one of this, if you have the space
http://www.frozencpu.com/products/5326/ex-rad-109/Black_Ice_GTX_Xtreme_360_Radiator_-_Black.html?tl=g30c95s161

You are welcome Patches
Search around for the best price in the stores, if not, post a thread on the WTB section to see if someone could sell you the rad you are looking for, at a good price.

Here are a few:
 
http://www.jab-tech.com/Black-Ice-GTX-360-Radiator-pr-3613.html
 
http://www.dangerden.com/store/black-ice-gtx360.html
 
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=20984