Channel 0 - Twin MCP 35X2 Pumps .... RPM Range 2000 - 4500 rpm
Channel 1 - MoBo Header => Fan PCB1 => (6) Fans on 420mm x 45mm Radiator
Channel 2 - MoBo Header => Fan PCB2 => (4) Fans on 280mm x 60mm Radiator
Channel 3 - MoBo Header => Fan PCB3 => (6) Case Fans Fans
-All Fans are 140mm, Phanteks PH-140SP
Radiator fans all blow in (of course). Fans shut off when temp curve calls for < 350 rpm. Ramp up is immediate; ramp down is 90 seconds. Max speed is 850 rpm under starees test ... typically 375 - 650 rpm when gaming.
Case fans (5) in / (1) out aren't really needed. Main reason they are there is to keep Hot (25-27 C) air from exiting the front of the case. The rads are cooled by 23C ambient air which forces the warm air out the the large rear grille. Fans shut off when temp curve calls for < 400 rpm. Ramp up and ramp down is 30 seconds. Max speed is 850 rpm under stress test RoG Real Bench + Furmark) ... typically 375 - 650 rpm.
Coolant Temp under Stress test if 8.6C above ambient.
- Why 140mm ? Cause they are much quieter cfm for cfm.
- Why standard pressure ? Because it's not the 1990s. In the 90s, radiators had a very high fpi and they required hi-speed fans to push air thru the tiny spaces. Today's copper rads are typically 8 - 14 fpi and neither HP or MP fans provide any benefit here. Aluminum rads or CLC rads will likely require MP high speed (2000 rpm) fans
- Why Phanteks ? 1) Cause when I built box they were the best on the market based upon real world testing. See silentPCreview.com chart and Overclockersclub testing (take noctua fans off noctua cooler and replace with Phanteks and at same rpm, temps drop 6C
Are you looking to buy a cooler for your precious CPU? You want it to be capable enough and look good, but also quiet; who wants loud fans droning in their ear all day? But how much do you need to spend exactly? Can you afford both decent power and near-silence within your budget? In
www.silentpcreview.com
2) Why replace them if ya can't buy better ?
3) Half the cost of the competition
The Silent Wing 3's were not tested but based upon various builds, I would say they are equivalent.
- Why aren't intake and exhaust fans equal in number ? The fact is you don't need to balance intake and exhaust. If ya have no AC and want to cool an attic or a room there is an attic exhaust fan ... there's no attic intake van, just a vent. When you put an exhaust fan in one window, open the other window and tuyrn the fan on , what happens to the curtains in fromt of the open window ... mine are at about 45 degrees from the rush of air coming in.
In addition, intake fans have filters, as they clog with dust they restrict more and more air flow. A good rule of thumb is to have no more than 1 exhaust fan for each 2 intake fans.
- This related to the next topic ... Why do rad fans always blow in ? Well the logic that generally has folks having them exhaust is that hot air rises.
Finally, when folks talk about negative pressure the downside most talked about us dust .... This is minor compared to the problem almost always missed. Example:
Let's say your case has a 3 x 120mm CLC blasting air out of the ccase with 2000 rpm fans. Y0u also have two intakes in the front with folters and 1 exhaust fan in the back. A dust clogged filter can restrict air flow by 30% ... if ya real lazy, even 50%. But let's say for the sake of argument that all fans are 2000 rpm and the air inlet filter restriction is only 25%. What are we left with ?
(2) intakes x (A) cfm x 75% of full flow due to filters = 1.50 (A) coming in
(3) radiator exhaust x A cfm x 90% of full flow due to rad restriction = 2.70(A) going out
(1) rear exhaust x A cfm x 100% of full flow due to no restriction = 1.00(A) going out
End result 3.70A going out - 1.50A coming in = 2.20A that's gotta come in somewhere. look at the case, where is the biggest least restrictive openings > ... answer to rhetorical question ... the rear grille. What's the air like back there between the case in the wall ? the space that your 750 watt PSU and 300 watt GFX card are exhausting all their hot air ?
You're not exhausting hot air out of your case, you're recycling it. Think about it ... your 3 x 120mm AIO is exhausting heat created by your 75 - 125 watt CPU by cooling the coolant with air preheated by your 35 watt MoBo, your 300 watt GFX card and other odds and ends. If ambient is 23C and your interior case temp is 28C with say 33C coolant .... numbers chosen 'to make the math easy".
Top Rad intake: Cooling air is 23C / coolant is 33C, Delta T = 10C
Top Rad iexhaust: Cooling air is 28C / coolant is 33C, Delta T = 5C
The cooling efficiency of your cooling system is directly proportional to Delta T, with those numbers intake fans provide cooling which is twice as effective. While 28C might be appropriate for a small number fans, no matter how many you add, it's always going to be warmer inside the case than outside:
We have tested this extensively, varying pump speeds, fan speeds, number of intakes and number of exhausts. Equipment used includes (6) temperature meters and 1 6 channel digital display, accurate to 0.1C. Coolant temps are measured in and out of each rad, the remaining 2 measure ambient and interior case temps. But the most defining tool is a cheap fog machine, my son left here from his teenage garage band days.
Set up ya box with that top rad fans blowing out and direct the fog machine exhaust behind the case ... unless you can still manage to still have more intakes than exhausts, ypou will see the case fill up with fog.
Air flow design / fan selection should always be tailored to case design, number of fan mounts and keeping with attention to where make up air is coming from ... workoing on a bakery right now where they have more exhaust than intake air and when oven is on, you can't open the doors into the building due to the pressure differential.