Each case can change the dynamics/environment. I recommend one try push then pull. And if space allows for it and the temps could benefit from it... Try dual fans in push/pull (One on either side of the rad).

seyumi
Ok results are in for my 3x Titan X’s AIOs:

Setup:

3x Stock Nvidia Titan X’s with stock BIOS with EVGA 980 All-In-One liquid coolers

Case/Cooling: Caselabs Mercury S8. 7 intake fans. 6 exhaust fans (room for 1 more exhaust)

Fans: All Corsair SP120 Quiet Editions running at the static full speed of 1,450RPM 23dBA

GPU Fan speed: Lowest possible setting (22% around 1050RPM)

GPU setup: Sandwich stacked

Overclock: +225Mhz on all 3 cards (1440Mhz speed)

Highest temperature rating running intense GPU benchmarks: 60C (Probably 50C in games)

I couldn’t find anything to measure GPU VRM & Memory temp unless someone can point me in the right direction

If this was Tri-SLI sandwich stacked on air, the GPU fans would probably be running at 100% at a full 5800RPM and would probably be reaching 90C+ and throttling. Plus 100x louder.

Yes I have room for 1 more AIO Titan X & a slot at the top to put the radiator but I don’t think I’ll need it! (at least just yet)

My biggest complaint is the motors make an annoying buzzing sound. I am VERY familiar with the problems all the Corsair CPU AIOs have and this isn’t any of them. This isn’t the sound of air trapped inside nor the sound of the pump getting too much voltage leading to a ticking sound. It’s the same sound as a wire slightly touching one of your case fans or something. My suspicion is maybe the pump is getting too much voltage or this is just how they are. I have to run a voltage regulator on my Corsair CPU AIO H105 so it doesn’t make a horrible grinding/ticketing sound. This might be happening because the Titan X’s fan the pump leeches off of may have more amps than the 980s and this pump was made for the 980 so that MAY be the cause but again unsure. When I just had one of these running, my fans running at 725RPM would cover up the sound. Having 3 of these now the buzzing sound grows. Now I can still SLIGHTLY hear it even when my fans are at full 1,450 RPM. Again not a big deal because I can’t hear it at all when playing games or there’s some type of background noise. Only in a quiet room with just my computer running I can hear the motors.

These AIOs perform in both performance and sound exactly where it should. Between air cooling and full water cooling. I am happy with the purchase but I wish it didn’t have the buzzing sound. I may get a single Titan X AIO if EVGA ever comes out with one to see if the buzzing goes away. I don’t think I can mod the voltage to the pump since it uses a weird small 4 pin connector that the GPU fan uses.

It’s not pretty but it’s functional! I stopped caring how the inside of my case looked a few years ago when I realized I was spending more time building my computers than actually using them. No window on my case. I recommend everyone try to do the same. It’s like a weight has been lifted off your shoulders.
 

Maybe I missed it while reading through the forums, and having mounted these on your X, do you know if a Titan X back plate still work with the kit?  The 980 Hybrid comes with a back plate and it looks like the mount points match up between the two plates.
 
Thanks.

I ordered on the 19th from Amazon in the US.  They have no information on when it will be back in stock. Can I get some information here?
 

Scheduled to come in next week.

Question about the cooling block power being fed by the Titan X stock fan power (pass thru in installation instructions).
Doesn't this mean that the water block is running at the same speed as the stock fan motor? If so, then perhaps the noise from the waterblock is because it's running too slow?
Wouldn't inserting a fan speed resistor in the feed to the stock fan cut its speed and allow you to increase the speed of the waterblock without any additional noise?
 
I just found this thread and am very interested in using it to watercool my 2 Titan Xs. Sounds like a great way to go.

Nitemare3219
With a single fan configuration, I believe you almost always want the fan to be pushing air through the radiator, not pulling it (this is where you hear push/pull, etc).
 
So in your case, the air should go through the fan first then through the radiator.

There is very little difference between push or pull really. Pull has the slight benefit of not having the fan hub be a major deadzone through the radiator but not where it makes any tangible difference in real life tests.

vsg28

Nitemare3219
With a single fan configuration, I believe you almost always want the fan to be pushing air through the radiator, not pulling it (this is where you hear push/pull, etc).
 
So in your case, the air should go through the fan first then through the radiator.

There is very little difference between push or pull really. Pull has the slight benefit of not having the fan hub be a major deadzone through the radiator but not where it makes any tangible difference in real life tests.

 
You will see a Difference is if you Pull Cool Air from Outside the Case -v- Pushing Hot Air Out of the Case.
One will make a little more noise than the other, you will need to test this yourself.
 
Outside Case - Fan - Radiator - Inside Case *Nice and Cool. This is what I would recommend.
Outside Case - Radiator - Fan - Inside Case *Nice and Cool.
Inside Case - Radiator - Fan - Outside Case *Nice and warm Air
Inside Case - Fan - Radiator - Outside Case *Nice and warmer Air

That's intake vs exhaust, don't confuse that with push vs pull. For a fair test, both push and pull would be having airflow in the same direction.

Doing that series of tests is fine and dandy but will be fan specific given the impeller design, motor hub size and so forth. I don't fancy anyone wanting to do this :)

vsg28
That's intake vs exhaust, don't confuse that with push vs pull. For a fair test, both push and pull would be having airflow in the same direction.

Doing that series of tests is fine and dandy but will be fan specific given the impeller design, motor hub size and so forth. I don't fancy anyone wanting to do this :)

I added intake -v- exhaust for more information.

PUSH Outside Case - Fan - Radiator - Inside Case *Nice and Cool. This is what I would recommend.
PULL Outside Case - Radiator - Fan - Inside Case *Nice and Cool.
PULL Inside Case - Radiator - Fan - Outside Case *Nice and warm Air
PUSH Inside Case - Fan - Radiator - Outside Case *Nice and warmer Air
Or
PUSH Fan - Radiator 
PULL Radiator - Fan
Then then they also could be the other way if you turn the fan around
PULL Fan - Radiator 
PUSH Radiator - Fan
 
Intake
Fan Flow -->
Push  Air --> Fan Flow --> Radiator Air -->
Pull  Air --> Radiator  --> Fan Flow Air -->
 
Exhaust
<-- Fan Flow
Pull    Air <-- Fan Flow <-- Radiator <-- Air
Push  Air <-- Radiator  <-- Fan Flow <-- Air
 
I have tested all the above and went with Intake Air --> Fan Flow Push --> Radiator Fan Flow Pull --> Air -->
 
The below is Push / Pull Cooling. I am pushing cool air into the Radiator and then Pulling Out warm Air from the Radiator.
So I guess Pull / Push would be the same I am Pulling Air from the Radiator and Pushing Air into the Radiator
I getting dizzy now.
But I don't think I have ever seen it written as Pull/Push. So the correct term would really be only Push/Pull.
 
But in my case I put mine in the front of the case  <-- Air <-- Fan Flow Pull Radiator <-- Fan Flow Push <-- Air Intake
There are 4 Fans in all 140 120 Radiator 120 140
 
 Click on Image for Larger View.
 
Sorry if this is getting a little off subject.
 
I forgot to add the Fan Noise changes when you change the fan as a push -v- a Pull.
You would need to test at FULL FAN Power which one makes more Fan Noise for your self.

Back in stock at EVGA US store.