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Radiator orientation

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New Member
Sep 13, 2016
I am building my first water cooling loop. The problem I have is that the radiator I purchased (without realizing) does not have a drain port. Is it okay to place the radiator upside down so that the in/out ports are at the bottom? I am building in a Thermaltake Core P5 case.



Premium Member
Feb 1, 2011
Welcome to OCF DominickD !:welcome:

What make/model radiator? Please also list your system specs so we'll be better able to understand what you've got to work with.

In general, radiator orientation is not as relevant as getting to your mount points and ports easily for building as well as maintenance. Certainly you'll want to have the rad's fans pushing hot air out of the case; use that as a baseline.


Gulper Nozzle Co-Owner
Dec 15, 2008
That's typically how you want it anyway... no (less chance of stuck air bubbles there versus up top)? I have had plenty of rads oriented with the i/o on the bottom.

caddi daddi

Godzilla to ant hills
Jan 10, 2012
yup, works just fine.

and if you hang it on the wall, rotate it 90 degrees so the cables from the I/o run straight down the wall.
I have seen a few pics of this on the net and it looks a whole lot nicer, even the gpu looks nice when installed in the slot and not in the bracket.


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