Originally Posted by rlsnyder99
Let me re-post the hardware list:
For CPU Cooling:
3/8" ID Tubing
For Video Card Cooling:
Danger Den DD-GX2 Waterblock
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