Cosmo S (Designed for water cooling, but may switch to the original cosmo)
750TX (more power)
P5E-Deluxe
E8400 (Read a review where it was overclocked to 4.4ghz........want to give it a try)
TWIN2X2048-6400C4
WD1601ABYS
WD5000AAKS
WriteMaster SH-S203B
EAH4850 ( 1 of 2 for crossfire power)
EAH4850 ( 2 of 2 for crossfire power)
VG2230wm
H20-Compact
MCR 320-QP
S-Flex SFF21E (for radiator)
Also will be getting VGA water blocks due to 4850's running hot, even though everyone is reporting that the Asus model comes with software that controls the stock fan and once adjusted by this software the heat no longer becomes an issue.

I really need all the expertise anyone has on this issue.......what is the best water cooling setup for this sytem? I want to explore both options of water cooling, being thermoelectric or just standard water cooling.

First off, its for gaming...nuff said....I've been researching for the last 4 days and I just can't seem to find the answers I'm lookinf for.....The Cosmo can have a total of 6 fans mounted on the top...alternatively you can mount up to a 3x120mm radiator on the top internally....

1) So, when I mount the radiator internally, the fans attached the radiator...what direction is the air coming from? Do those fans pull air from outside into the radiator to help cool the hot air being pushed back into the case. Or do the fans push the air out of the case?

2) If I used all 6 fans (3 external over top of the vents that cover the radiator and the 3 attached to the radiator) What direction is the air flow being carried or whats the best way for the air flow to be carried?

3) 4850s....we've all read the various reviews and while the are cheap powerhouses, they run very hot. I'm going crossfire and want to run VGA coolers on them.....But, whats the best setup for this? pump - cpu - rad (1) - vga coolers - rad (2)? Also, how do I keep from bring heat from vga cooler 1 to vga cooler 2? Do I introduce a radiator inbetween the 2 coolers? or do I split them off coming from rad (1) and combine them back when going into rad (2)? And again what direction is the air coming from to provide maximum performance for the radiator?



Thanks in advance to everyone who can help!

You can really do either, but will notice a slightly lower temp with incoming air. The benefit to either is how you want your fans to cool your board and other components. If you have intake fans on the front and/or sides, outward on the radiator would be best.

Not sure exactly how this is set up, but in looking at pictures of what I believe to be your case, you will want as much balance as possible or even a little higher output.

You can run all in serial and be just fine. The typical misconception that 'my super heated water from CPU/GPU to the next component' doesn't apply with water as the temps you see with air. First, the coolant is moving so fast and is able to carry so high of thermal capacity that the components never really get that hot. With that being said, you might see a 1-2C difference between Crossfired/SLI cards; probably no more than 3-4C max.

I usually run loops in this way:

pump > cpu > NB > GPU(s) > radiator > (resevoir, if wanted)

I know that some people say place the radiator before the CPU, but in theory, it is. It just gets pulled from the radiator by the pump first. I would rather pull through a radiator with a pump than push through it...it just seems to make more sense that way.

If you really wanted to run 2 radiators, you could also consider doing a parallel loop just for CPU and NB and split the other for your GPUs with each loop running into a separate rad, then 'Y' them back into your pump.


CPU > northbridge > rad
pump < >resevoir > pump
GPU > GPU > rad >

How much more effective is thermoelectric cooling for the processor?

You will see below ambient temps, often very cool, but the 'hot' side might be much hotter than a normal CPU gets. I don't really know, I've never used TEC, so I don't have an accurate comparison for you. I would assume it might bump temps some, but it can't be too drastic otherwise they wouldn't be recommended in a regular water loop.

The best orientation would be rad (bottom), fans (middle), the case (top) with the fans "pulling" air through the rad and out of the case.

With 6 fans I'd do a "push/Pull" orientation. Same as above, but with three fans below the rad pushing air through the rad. All 6 fans would be flowing air in the same direction and out of the case. I'm not sure if you'll have the internal clearance to do that, though.

Loop order causes more heated "discussion" amongst water coolers than almost anything else. I agree 100% with rubix_1011 that the fluid moves so rapidly through the entire loop, that loop order makes very little effective difference. Loop for simplicity and to reduce tight bends (which can kill flow). DEFINITELY no 90degree bends or elbows and no pinched tubing. Personally, I'd keep all the components in series and not split the loop. The water will tend to take the path of least resistance and one side will likely get better flow than the other.

Well, I think that alot of what you "might" consider should also be influenced by what your intentions are as far as o'clocking is concerned (i.e. aggrssively or just mildly). The reason for this is the difference between TEC cooling and just straight watercooling. As expensive as an initial watercooling setup is (if you go top of the line), adding TEC cooling to the mixture raises the expense bar considerably. In fact, just having a TEC CPU block (depending on which one) can, effectively, double the price of a watercooling setup (i.e Spyder CPU TEC block (437w), PSU, miscellaneous parts could run you upwards of $400 or more).

Now, thw Arctic Spyder is pretty much the high end of TEC blocks for the CPU and is pretty much overkill. In this area, unless you are a dedicated o'clocker, you really don't need much more than the Swiftech CPU block (226w).

My Swiftech block allowed me to keep my mildly o'clocked Q6600 (320FSB) at 0 degrees C. However, a 226w TEC block needs no less than a dual 120mm rad - dedicated. TEC produce a tremendous amount of heat and you dare not add any other blocks in line with it and the rad. So, if you intended on cooling some GPU 9s) then you would need a cooling loop with two dual 120mm rads minimum like this:

reservoir - pump - CPU TEC waterblock - rad - GPU (s) waterblock (s) - rad - back to reservoir.

And for god sake, don't put the rad directly AFTER the pump. I know that some people do this but that really does affect the benefit of the best flowrate that the CPU block would otherwise recieve. The best spot in a cooling loop is directly after the coolant leaves the pump and common sense says that having the CPU block in that position would be the best benefit.

So there you have it as far as TECs are concerned. I've been using them for 5 years now and I will admit that they cost me plenty. But, besides using phase-change or McGyvering some kind of liquid nitrogen contraption, TECs are the only only realy "practical" way to get below ambient temperatures - something air or straight watercooling cannot do.

As far as straight watercooling - two rads, one fore the CPU and one for the crossfire.

reservoir - pump - cpu - rad - gpu - gpu - rad - back to reservoir. If you use a one triple 120mm rad then some of those major components will be made to suffer from the heat collected by previous waterblocks as well as the heat they generate on their own. I mean, think about it:

reservoir - pump - cpu - gpu - gpu - rad - back to reservoir

I the first gpu is having to deal with its own heat and the heat from the cpu. Now, the last gpu has all that AND its own heat as well.

You get the picture.

How about this one and saves me on a radiator, I get the idea. Also, just found some excellent info on Xoxide's site http://www.xoxide.com/water-cooling.html


CPU 4850 - 1
Pump/Res< > Radiator < > pump/res
NB 4850 - 2

thanks rubix.......if anyone else knows more about TEC your input would be welcome...thanks!

Optimum flow rate is between 1-1.5gpm. With that setup, you'll kill the flow rate through your VGA cards - effectively cutting it in half through each card (the cpu/NB split isn't that critical). I wouldn't do it.

No TEC experience here. You can try here, though:

http://www.overclock.net/peltiers-tec/

Run your GPUs in serial...don't split them to parallel. Besides, you will just create more of a headache trying to figure out how to get the fittings and tubing all crammed in there between each one. Either put a rad between the CPU and GPUs, or just run 1 bigger one after.

if i got the same setup i would config it as follow if i got it in a cosmo s.
top pump>3x120 radiator>CPU>NB>120 radiator buttom>CF>Reservior


depend on how powerful the pump is you might need another pump at the second 120 radiator.

TEC? im not so sure, but it cant cool everything at a reasonable price.

The reservoir always has to come above the pump because pumps are not designed to "pull" water but push it. That is why they have to be primed via gravity fed.

Destro, in your proposed setup, the hear from those gpus in crossfire are going to hit the CPU and NB the next time around and you aren't going to get any sort of cooling down in that situation. Running things in parallel like that is going to kill your flowrate. If you want optimal cooling where your CPU is going to get the best possible cooling potential then you should have it be the first thing that recieves the flow out of the pump, then put the NB after it.

I am using an MCP655 and I've used it to power a cooling loop smilar to what you priopose with the exception that I had SLI and not crossfire.

That setup was:

reservoir - pump - TEC CPU waterblock - dual 120mm rad - gpu - gpu - dual 120mm rad - back to reservoir.

Show's how much I know, but I been doing heavy research this weekend that have answered lots of questions, but as always there are a few exceptions....THANKS TO EVERYONE WHO HAS EDUCATED ME SO FAR!!!

1) Laing DDC 3.2 pump, has an acrylic top and acrylic reservoir made for it. I always have read the acrylic breaks and springs leaks. However, I read that the acrylic topped versions of this pump out perform just about everything, in just about any kind of situation http://www.martinsliquidlab.com/DD [...] sting.html. Do I risk it? or the acrylic leaks are not that common enough to worry about?

If acrylic really isn't an issue...I would be looking to setup like this;

DDC 2 -3.2 w/ XSPC Arcylic reservoir top > DDC 2 -3.2 w/ XSPC Arcylic top > Radiator 120x3 > CPU > GPU > GPU > Radiator 120x3 > reservoir.............

2) Would it be better to have both DDC pumps with the reservoir top?

3) Use seperate reservoirs?

4) Would multiple reservoirs be better?....as you see I'm only going with 1 reservoir acrylic top. However, I was thinking have both pumps with the acrylic reservoir top.

5) Also, should I remove the radiator between the pumps and CPU and move it between the CPU and the first GPU....for this type setup? I read its better to have a radiator between the pump and CPU. Then again everyone says order doesn't really matter....I looking for max performance!!

DDC 2 -3.2 w/ XSPC Arcylic reservoir top > DDC 2 -3.2 w/ XSPC Arcylic top > CPU > Radiator 120x3 > GPU > GPU > Radiator 120x3 > reservoir/DDC pump

All advice welcome..........thanks in advance!

First off - Trust Martin. He's tested just about everything.

The XSPC tops are great and sturdy. I have seen reports of the OC labs tps cracking. I have an XSPC top on my DDC 3.2

Mostly a matter of preference. The reservoir tops gave the best performance in Martin's test, but the difference over the regular XSPC top was minimal. You also have to consider the space to place two pumps with the reservoir top.

I would go with the plan as you have above - the first with the reservoir top an the 2nd with the regular top. You don't need two reservoirs in a single loop. A res does slow your flow down. In your case, you could consider two separate loops.

I think I could fit two of those in the CosmoS...but your right I think the other setup is much better and space considerations aren't as necessary....But

1) In a normal situation I would need gravity to help fed the pump from the reservoir....With a reservoir built on top of the pump I no longer have to worry about that?


2) Also, does it make more sense for the radiator to between CPU and pump or CPU and 1st GPU?