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Another "help me I'm a noob" thread

post #1 of 12
Thread Starter 
Hello all!
So, I'm trying to watercool my pc for a couple reasons.. hopefully this will lower the temps in the room and quiet it all down as well, and because it looks like fun.
I thought I had everything planned out and bought, and was starting to install some components to begin my routing, when I came across an article on the number of radiators I need.
I'm trying to cool my cpu, and two 780 Ti S.C. gpu's
I have an XSPC 360 rad that I've managed to stuff in the top of my Thermaltake Chaser MK-1 (manufacturer states that a 240 will fit)
I'm limited on space, and my pc has already fallen off the desk twice laughing at the budgets I set.

How much more rad will I need to keep this thing chilly?

I've read I need as much as 3 more rads... two 120's and I might be able to fit a 140 hanging off the back if I can manage to get some fittings wiggled through.

So I'm looking for advice on how many, and what size.

I could run a thicker rad like a monsta in the bottom, and/or a thick 140 in back.
I would rather not do one in the front because I will have to remove my air filter, and things are pretty tight up there but, If its necessary.. I will (might have to modify the HD cages.)

I'm hardlining all of this, so the only easy one to plumb would be the bottom of the case.
(on the front and bottom, do you pros just let the heat blow into your case?)

I'll have another question regarding my fans after I get the rads sorted.

List of what I have so far:
1 XSPC 360 Rad.
XSPC raystorm cpu block
XSPC 780Ti gpu blocks with backplates
Koolance x2 bayres
Koolance D5 pump
Koolance CTR CD-12 pump/fan controller
Koolance flowmeter
Koolance Temp probes
18 Monsoon hardlock fittings
12 ft Monsoon PETG clear tubing - bending and measuring pro kit

I'd like to get the last of what I need ordered in one last order.. shipping is killing me!


Any help input and advice is greatly appreciated.
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Budget Bruiser
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post #2 of 12
There is a mistake in your thinking in one of the reasons you mention:

"So, I'm trying to watercool my pc for a couple reasons.. hopefully this will lower the temps in the room and quiet it all down as well, and because it looks like fun."

The heat that gets put in your room stays exactly the same. How much heat gets produced is tied to how much power the PC uses. If you want to make your room colder, the only thing you can do is use parts that use less power.

The watercooling is stronger cooling, but what that means is that it is better at pulling the heat out of your CPU and GPU. That heat will still get dumped into your room, just like with a weaker cooler. The stronger cooler just makes it so the heat gets pulled out of the parts faster. Only the parts themselves will be colder, but not your overall environment in your room.
post #3 of 12
Thread Starter 
I understand that.
The thermal energy put off is exactly the same but, what I'm hoping changes, is that by removing it more efficiently and dispersing it in a large volume of water vs air is, that the heat is blown off at a lower temperature, over a longer period of time. Then maybe the A/C will have a chance at keeping up.

kind of like lighting a log on fire, and maintaining a small flame vs burning the whole thing at once ... the log is still going to produce the same btu in both scenarios, but one you don't mind sitting right next to, and the other would burn you.

Or like boiling a pot of water ... the stove will burn you now, where the water must come to temp before it burns you. (I like this one better)

During short gaming sessions, the heat put off is quite intense and acute.
If this theory doesn't work the way I hope, I wont be disappointed, The less noise and aesthetics still makes it worth it, and besides.. I already have the parts, so it's going to get wet anyway!

So, yes, you are absolutely right, and i guess my wording describing my expectations were lacking.
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post #4 of 12
Those cards can generate some serious heat. You should add at least 240mm more rad space. If you cant fit it in your case, then maybe do it externally?
post #5 of 12
Thread Starter 
Thats what i needed to know ...
Think I'll bust out the dremel and make some room in the bottom!

another quick question ... Those of you that run rads in the bottom of your pc.... do you vent the heat up into your case, or blow it down underneath?
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post #6 of 12
You shouldnt fight laws of physics - hot air goes up. Just make sure to add enough fans to the front, so more cool air comes in.
You can always make rear exhaust into intake, if you need more cool air.
Edited by Anateus - 5/18/15 at 3:02am
post #7 of 12
Quote:
Originally Posted by vettemand View Post

Those of you that run rads in the bottom of your pc.... do you vent the heat up into your case, or blow it down underneath?

doh.gif
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post #8 of 12
Quote:
Originally Posted by Anateus View Post

You shouldnt fight laws of physics - hot air goes up. Just make sure to add enough fans to the front, so more cool air comes in.
You can always make rear exhaust into intake, if you need more cool air.

Well I learn t here on this site that heat does not rise, it expands, which makes sense, as air balloons would look saggy on the sides biggrin.gifthumb.gif
post #9 of 12
... what kind of logic is that???

Air balloons doesn't look saggy, due to the outward pressure of whatever kind of gas you put into it.
If hot air doesn't rise, those "hot air balloons" won't even move an inch.

But seriously though, the bottom case is not an ideal place to put radiators.
If you're in a dust prone environment, it'll suck up a lot of dust from the ground in no time.
There is also the slight cooling inefficiency that comes from having the heat that you're moving from various components being dumped back into the inside of the case.
(On most systems, the heated air exits before any significant quantity of heat is getting transferred back to components)

If you're lacking space inside the case, why don't you consider making an external box?
http://www.overclock.net/t/1554105/recommended-external-radiator/20
post #10 of 12
Thread Starter 
@ Casey Ryback, I don't get the point of your post but, I guess thanks for taking the time to reply?

@ Anateus I have a 200mm fan in the side that I was going to cut out and turn into more window, but I suppose I can leave that to deal with the heat dispersal from the bottom rad

@ washu99 The bottom might not be ideal, but it does already have a place for a single 120. about 3/4 of the case bottom has a dust filter across it.

Which brings me to my latest idea of moving the power supply into the area of the hard drive cage. that would allow me to run a 240 rad on the bottom with all of it covered with a dust filter.
This is the direction I'm leaning so far.

Anyone have any tips on mounting a PS vertically?
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