Options for Rad setup

[zeroibis]

I am planning on installing 2 rads into my system. There is only space for them to be placed one after another the proposed setup is as follows:

F=fan(120mm)
-=sealed shroud
R-Raidator(there are 2 120mm quad)
D=duct

F-R-F-R-F
F-R-F-R-F
F-R-F-R-F
F-R-F-R-F

The only other option is to have:
R-F-D R-F
R-F-D R-F
R-F-D R-F
R-F-D R-F

Where the duct routs the exhaust air around the side of the radiator behind it.

Now I am using the first rad on a cpu only loop and the other one for everything else. I have overhead because I plan to be able to add more components to the loops in the future.

From a performance standpoint what is my best option?

[Utnorris]

There is an ongoing discussion on this;

http://www.xtremesystems.org/forums/showthread.php?t=210910