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Benefit of a second pump?

post #1 of 9
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While waiting for the the 900D to get released, I have a bunch of new stuff going into my next upgrade. The new loop will consist of 2x 480 rads and perhaps a 360 rad, 2x 7970 blocks, and a CPU block.

1. Currently have a Danger Den Monsoon Dual Bay res with a Alphacool VPP655 Variable Speed Pump.






Looking to get:

2. Koolance RP-452X2 with another Alphacool VPP655 Variable Speed Pump





As the title states. Would I benefit any by getting the new Res and adding a pump?
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My lil monster
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post #2 of 9
No. You only need 2 pumps if you have a lot of restriction in your loop such that flow rate drops below 1-2 gpm. Tight bends, right angle fittings, etc etc. (or in my case, 50 feet of tubing going to the remote water chiller redface.gif)
post #3 of 9
No, you dont need two pumps unless you are doing like 5-6 blocks, multiple res's crazy number of 90deg fittings and insane amounts of tubing. even if you have 3 480's a cpu block and gpu block with a bunch of angle fittings, running the d5 on the 3-4 setting will be the most you need.
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post #4 of 9
Will you benefit? Probably not from a temperature standpoint (maybe a little bit).

But if one pump fails, you'll have a backup.
post #5 of 9
IMO, the added noise is not worth it
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post #6 of 9
The added redundance is worth is. If one pump dies, it will only add 2% more restriction to the loop. You can eliminate chances to fry something. For those who leaves their computer on 24/7, it's a cheap insurance.
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post #7 of 9
Quote:
Originally Posted by Sammyboy83 View Post

The added redundance is worth is. If one pump dies, it will only add 2% more restriction to the loop. You can eliminate chances to fry something. For those who leaves their computer on 24/7, it's a cheap insurance.

You can run a modern processor without any heatsink at all and it won't fry itself: https://www.youtube.com/watch?v=NxNUK3U73SI

Plus, how often do pumps actually fail?
post #8 of 9
How often does people win grand price in lottery? Very few, but somebody is lucky, or misfortune is this case. The point is, we will never know when the pump is going to fail. In my case, I rather have two.
Edited by Sammyboy83 - 3/26/13 at 2:51pm
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post #9 of 9
Quote:
Originally Posted by dr/owned View Post

No. You only need 2 pumps if you have a lot of restriction in your loop such that flow rate drops below 1-2 gpm. Tight bends, right angle fittings, etc etc. (or in my case, 50 feet of tubing going to the remote water chiller redface.gif)

You mean 1-2 gallon per minute? I would call 1 gallon per minute "high flow" and 2 gallon per minute "insane" biggrin.gif
 
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