Daft 3 pump loop idea

[somethingbrite]

OK, this seems a little stupid even to me, so I ready to be slapped down here.

The plan...A 3 pump cooling loop.
The (daft) logic.....

I already have a D5 Vario twin (series) Pump block but it sits closer to the bottom of an Obsidian D900 which is quite a tall case.

I was thinking that after passing some coolant through a couple of Rads and "lifting" it most of the way up the case that perhaps adding an additional pump near the top would add a little pressure boost to the coolant before it hit the CPU and VRM blocks....

I could probably achieve the same for less by splitting the two existing pumps and placing them at different points in the loop, but I actually like the look of the dual pump top and its present location.

Proposed loop MK2
Res > EK Dual Top (Series) + 2 x D5 Vario > 240 Rad > Chipset Block > 480 rad > (climb up case) > D5 Vario Pump > CPU > VRM > 480 Rad > GPU > Res

So....I am prepared for the flack....or healthy debate from the "daft fringe"

 

[logicfry]

why the first 240 rad before the chipset when there is another 860mm of rad in the loop?
does it really need 1100mm of rad to cool it? wouldn't removing the extra rad would reduce the resistance thus removing the need for a 3rd pump?

someone said to me 120mm for each part of the system plus 120 extra would be enough, so with that in mind and 4 parts to cool = 600mm. with 860mm there is loads of headroom for extra cooling, no?

 

[jimhaumman]

120mm for a part doesn't work always work.I mean it depends from how quiet you want your pc to work.How fast you want your fans to spin.I got three parts to cool and 600mm of rad,but I can't go lower than 800-1000 rpm(summer time 1400rpm) during intesive gaming,and I would prefer 500-600rpm.
What components are you cooling?From what I red adding extra pumps brings diminish returns,wouldn't be better to do 2 loops?

 

[Ploppy2k3]

120mm for a part doesn't work always work.I mean it depends from how quiet you want your pc to work.How fast you want your fans to spin.I got three parts to cool and 600mm of rad,but I can't go lower than 800-1000 rpm(summer time 1400rpm) during intesive gaming,and I would prefer 500-600rpm.
What components are you cooling?From what I red adding extra pumps brings diminish returns,wouldn't be better to do 2 loops?

I agree. I have 1560mm of rad space for 2 GPU and CPU. the fans run at 600RPM max

silence is more important to me than anything so that's why i have this seemingly overkill rad setup.

the 3rd pump though wont add anything really so I wouldnt bother.

 

[BattFink]

I've gone for a similar configuration with radiators, personally you can never have too many rads (silence is important to me)

Currently in the process of upgrading but previous loop I was running in my 900D:

Res -> Pump -> 240 Rad -> 480 Rad -> GPU 2 -> GPU 1 -> 120 Rad -> CPU -> SB Chipset -> NB Chipset -> 480 Rad -> Res

All radiator have Noctua NF-12's running at approximately 300-400 rpm (at idle)