Originally Posted by GhostDog99
That is not true to gat any ok performance
It would be 120mm per GPU , Ram , MoBo block
And 240mm per CPU
So for CPU + 1 GPU 360mm will be ok but it will be ok but won't be optimal
And he is getting only a 45mm thick rad so I would say
Get 360 + 240 and you are good to go and you could even add a nother
GPU in later on if you would like and I would go with pull
There is not big deference and if you go pull it will be easy for you to clean the rad with out taking the fans off
Actually, there are a LOT more variables affecting radiator performance to a much larger degree (hmm....pun-y) than just radiator thickness. Look at Martin's library of data, and you'll see that just because something is 60mm thick doesn't mean it will out-perform something 45mm thick.
Just to name a few of the other factors:
- Build Material
- Build Quality
- Fin Density
- Find Design/Shape
- Row Count
- Tube Shape
- Number of Passes
- Airflow Restriction (similar, but not the same as fin density)
- Distance from Fan Mount to Radiator Core
Furthermore, the fan speed (or rather, not the speed, but the static pressure to airflow relationship of the fan) and the airflow pattern and velocity will have a large effect. Air moving slowly through a thick radiator is worse for cooling than air moving quickly through a thinner radiator, because every little bit of heat absorbed (by the air) decreases its ability to absorb any more; i.e. 65F air through a 90F radiator will have excellent heat transfer, but 85F air through a 90F radiator will have poor heat transfer. The thing is, air temperature is NOT a constant when traveling through a radiator, and the differences in temperature are not nearly as extreme as the example I just gave.
You'll know you're getting good cooling if the airflow and air velocity is enough that the air coming out of the rad exhaust side is not significantly different in temperature than the air going in. That means there's lots of air molecules each responsible for a small amount of heat transfer, as opposed to fewer where each molecule has to carry away a lot more heat (which is immensely ineffective).
Originally Posted by IT Diva
Don't forget that you can run 2 sets of fans in P-P slower and quieter and still get the same airflow for the same cooling with less noise than a single set of fans.
P-P on a controller is the best way to have quiet when you want it, without sacrificing performance when you need it.
As always, spot on!
Airflow velocity, as mentioned above, is another important benefit of P-P fans.