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.