Time to wrap up V1.5 upgrade and draw conlusions:

1) GTX 580 3GB with EK-FC5X0 GW Acetal Nickel blocks in series
Result: Win

Better performance in 3DVS, higher AA available, almost 400W less power draw from the wall.

2) 2x Koolance PMP-450S (D5 Strong) 24V pumps with Koolance 12V-->24V converters
Result: Epic Fail

With 2 pump at full (24V, 6000RPM) speed I'm getting 165 l/h.
Comparing to previous 225l/h with 1 more GPU block (albeit in parallel and different design) doesn't look like an improvement, does it...
On top of that I have to run it at ~20V - 145 l/h - otherwise they are very noisy (vibrations)

3) 12GB (3x4GB) RAM - Corsair Dominators GT, 2000mhz @ CL9
Result 12GB RAM: Win
Result Dominator GT: Fail

12GB is win - no more page file, much better in Vegas.
Dominators GT are fail. Best they'll do is ~1930mhz at CL10 and that's with 1.35V QPI!
My previous Dominators did ~ 2003mhz @ CL9 with 1.31v QPI.
Maybe I got a bad batch - but as a high end product and price such should be quality and QA)

4) All fans controlled by single CPU header on the mobo (PWM signal only)
Result: Win

Works perfect, single setting in Asus Fan Xpert to controll all fans!


5) Back to EK res on the dual D5 top - this time 140mm.
Result: Win

Less bling more classy - plus easier to fill the loop


6) Additional water temp sensor on the inlet to second (top 360) rad
Result: Win

Obviously

7)Aquaero 5.0 Pro
Result: Epic Win

Not much to say - is there? Just an excellent controller
No PC software yet but you can do most of the stuff (not as easy though) through the panel.


What now? If you've been following the worklog - it's pretty easy to guess.

Version 1.6 rework on Friday/Saturday (while I still have the time).

Changes:
1) In: 3x DDC 3.25 - EK Dual Top V2 + EK Top V2
Out: 2x Koolance PMP-450S (D5 Strong) 24V pumps with Koolance 12V-->24V converters


Why? Obviously I won't live with 145l/h , and I've found this:
Skinee Labs EK 3x DDC

Which convinced me that combined head of 3xDDC 3.25 should at least get me back to 200-230l/h range.