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Dual Loop Single Res - Page 2

post #11 of 14
Dammn did not see you will be using 2 pumps...

In that case you still want to draw coolant into the pumps from the res tank (common to both).
You will need 1 radiator for each circuit after the pumps and prior to the waterblocks and you will have your seperate circuits..
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post #12 of 14
Quote:
Originally Posted by rlsnyder99
Let me re-post the hardware list:

For CPU Cooling:
Apogee Waterblock
MCP355 Pump
MCR120 Rad
3/8" ID Tubing

For Video Card Cooling:
Danger Den DD-GX2 Waterblock
MCP655 Pump
BI GT360
1/2" ID Tubing

I will be using two different pumps. My Apogee block came with 3/8" barbs. It was part of a kit.
Way overkill. A BIX3 or PA120.3 rad would be enough cooling to handle a CPU and two video cards (dual core) even if all are massively overclocked. Adding an extra pump only adds unnecessaty heat to the loop. The blocks you have choosen are not restrictive types and a single pump would be adequate. Using 3/8" barbs/tubing will cost you much more in cooling that 2 pumps will gain.

Check out this article: http://www.overclockers.com/articles1088/

The only thing you gain with two pump is slightly higher flow rates through the rads and blocks. But once you get past 1 gpm further increaces in flow have little effect on cooling:see attached from http://swiftnets.com/Technical/Asses...erformance.pdf

This would be a betteer waterblock: http://www.overclockers.com/articles1261/


Anothe problen you are going to have with two pumps and one rez i that the high flow rate through the rez will not allow suficient time for air removal...it may even induce air into your loop(s)

Have you actually done any caculations? Or are you just going for "bling"?

Here's an idea for a dual rad setup

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post #13 of 14
There isn't a need to make this a parallel loop. Just get some 1/2" barbs at the hardware store for the Apogee or order some off the web. You will prob see better temps on the CPU having it be a part of the 1/2" loop with the D5 and the GT 360.
    
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post #14 of 14
using one res for both loops completely nullifies the purpose of having 2 separate loops independent of eachother

get 2 smaller reservoirs or just make one large loop with a single larger radiator that can dissipate the heatload
    
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