Hi I bought a hybrid cooler for my 1080ti FTW3 but I have had some problems with it ever since I got it.
when under full load it runs 65c! even with arctic silver MX-4 thermal paste
 
The pump can't be controlled when plugged in to the graphics card itself and will therefore run at 100% at all times and be noisy as heck with pump whine, I have since then gotten an adapter where i can plug in my pump to the motherboard and control the speed (80% idle and 100% load)
 
the fan for the radiator is not the one that came with the hybrid kit but instead a Triebwerk (TFC TK-121) 55mm thick fan with great static pressure and airflow which runs at 100% all the time.
(the case has been modified in that sense that I have cut the grill infront of the fan to allow better airflow)
 
my main concern is that when idle the GPU runs at 26-28c (ambient 21c) but 62-68c when gaming.
 
I thought that it was supposed to be 45c-ish maybe even as high as 50c, perhaps I have a faulty unit?
I have tried reseating the pump and shroud several times without any change in temperatures...
 
The fan for the hybrid radiator is used as a exhaust along with my kraken X62, (1x 120mm and 2x 140mm) as for the intake there is 4x 120mm which should provide plenty of "cool" air and a positive pressure in the case also.
both radiators are in Pull configuration
 
I really hope you guys can help me out :/
here are some pictures: 

 

Also the pump is loud most likely cause of air! And it's trying to run hard prob cause the card is telling it it's overheating.

Even in a custom water loop one will hear the pump till most of the air is bled from the system and trapped in the res.

Better change back to the EVGA 120mm fan and place it in front the radiator with metal screws like it used to be.
 
TFC TK-12 may have the same airflow as normal 120mm. But I just experienced the EVGA fan has a very strong static pressure, which is even higher than Noctua NF-F12 PWM, it's 4.04 mmH20 ! while NF-F12 is only 2.61 mmH20.
 
That's highly possible the reason your old TFC TK-12 fan with 1.62 mmH20 cannot drag air as much as the stock fan. And don't care about noise, you'll get used to it.
 

what CraptacularOne writes makes more sense to me anyway, although I DID mount the stock fan and re-orient the radiator and now the gpu is 56-58c while gaming while being a tad more noisy regarding fans, I will try to reseat the GPU pump this weekend and post the results! :)
 

CraptacularOne

AHowes
Flip that rad so the tube connections are at the bottom! The way you have it air will settle in the pump! You want air to be trapped at the top of the rad.. not at the pump.

So flip the rad and tilt the case on the side so the air trapped in the pump will work itself out to the rad. Do this while it's runing.

The orientation of the rad doesn't really matter as much if at all with a CLC. The only time usually there can be air in the line in a CLC is if permeation has started to happen. That's when the liquid (usually propylene glycol) starts to permeate into the tubing of the cooler leaving pockets of air in the loop. This doesn't usually happen for years however and isn't really a concern on a new CLC. 
 
Having said that his temps do seem to be a bit higher than normal. This can be caused by either poor contact with the cold plate on the CLC and is usually remedied by a remount of the block. Though they aren't out of reason high considering the numbers he's more than likely quoting of 45C are from reviews where they are using it in a open air system. 

I've owned to 1080 hybrids and if you move the rads around you can't hear the liquid splashing around so there's air in there and it happens. So there not all topped off.

AHowes

SilentMarket
Not to mount like that, mount like the original inside style, you will see more temp drop.

Say again?

Not to mount like that, mount like the original inside style, you will see more temp drop.
 

 

AHowes
You mean mount the fan on the inside of the case blowing out right?

Push is better then pull.. and more quieter.

Yes, that's what I mean.
EVGA's fan is maybe designed specifically for push.  The fx 12 even has a curved shape to make it push harder with more static pressure. Though the stock fan doesn't look that fancy.

just for science, put the stock fan back inside the case and see the temperature change.

AHowes
You mean mount the fan on the inside of the case blowing out right?

Push is better then pull.. and more quieter.

Not really, but push creates impossible to clean dust spots on radiator. Performance wise they are nearly identical, with slight variation across the board depending on the fan speed.
https://youtu.be/UyC3lZ5WFMk?t=234
 
BTW, stock fan is a garbage. Get Corsair ML 120 https://www.amazon.com/gp/product/B01G5I6MT8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 or similar SP fan.

Hi sorry I've been really busy, so I have sadly not yet had time to reseat the pump on the gpu nor placing the fan on the inside the case in a push config :(

abgersaurus
small update.
 
So far I have reseated the pump onto the gpu also putting new thermal paste on the gpu, I have even gone so far as to under-volt my gpu and gotten a bit lower clock speed (1870 Mhz on 975mV) and swapped the standard EVGA fan included to a Noctua NF-F12 I had laying around, and put it on the radiator in a Push-config and so far the gpu does not exceed 52c in furmark and sits around 49-50c when playing PUBG :)
 
 
I will post another update when I change my system to a mini-ITX next month :)

Those are about *normal temps.  Of course since you're running it as exhaust, your internal case temp is going to influence your temps.

abgersaurus
the only thing inside my case giving of heat is the VRM fan on the graphicscard itself, the CPU is being cooled of by a 280mm rad in exhaust config aswell, I have 4 fans as intake so plenty of cold air getting in
 

And the motherboard, and the GPU, and the power supply all items consuming watts in your case. They all radiate thermal energy.  Your internal case temps are several degrees higher than outside the case. I'm not disagreeing with you. We've a similar philosophy, lots of intake with rads being exhaust.  I did a slight mod to my Corsair 780T. Got rid of the two 140mm and put two Noctua 200mm as intake. Holy cow...what a difference basically silent and more than double the intake flow.