Hi folks! I finally finished my triple rad NR200 build. But one DDC pump seems not strong enough to drive my loop.
Here are the components:
1x Black Ice 280GTS rad
2x XSPC TX240 rad
17x 90 degree fittings (I know it's kinda crazy.....)
1x quick release plug(pretty restrictive)
1x Apogee Drive II (CPU block + Integrated Swiftech MCP35X DDC pump, 18W)
1x GPU block
So I end up with a really weak flow. I don't know if reducing the amount of 90 degree fittings would help but I guess I need an extra pump to drive this loop.
The MCP35X can't even bleed out air itself, I use tap water to flush the loop and get most of the air out. Right now this loop can support web browsing etc. but can't survive any stress test.
I'm thinking about iceman pump res combo but I prefer to put everything inside the case. What's the smallest option out there with a decent amount of pressure? Will putting in another DDC pump solve my problem?
Any suggestions would be highly appreciated!
UPDATE: I put an extra ddc pump with the iceman pump res combo, optimize the tube routing and use only 7x 90 degree fittings and 2x 45 degree fittings.
It turns out dual pump is a must for this triple rad build. There is always a misconception in all kinds of discussion that "ONE 18W PUMP CAN EASILY DRIVE 2 TO 3 RADIATORS".
Well, apparently it's not the case for ITX water cooling. People who used to water-cool their mid-tower build generally used the regular/beefy rads and those rads are less restrictive. Also, you will inevitably use some 45 or 90-degree fittings for your tubing given the restricted space for itx builds.
Hands down, one 18w DDC pump is not strong enough to drive a triple rad NR200.
Data:
One 18W DDC@max, 0.8GPM.
Two 18W DDC@max, 1.2GPM
Two 18W DDC@quiet level, 0.75GPM
Ideally, you want to reach 1.5GPM, but anything above 1GPM should be good enough.
As for temp, my extremely OCed 3900x will never pass 78 celsius in any stress test.
