I need help to understand a couple of things. I recently assembled my new PC, as a video card I mounted an EVGA GTX 1080ti FTW3 that I already used on the old PC. To be more precise the old system was housed inside a Cooler Master HAF X while the new one is in a Lian-Li PC-O11 Dynamics. In idle the video card goes from a minimum of 27 degrees up to a maximum temperature of 35 °, which I believe is normal... instead, while playing, it reaches high temperatures above 75 ° after 15\20 minutes with peaks of 80 ° / 83 ° which trigger the pop-up notifications of the CAM software. I reach this temperatures despite having increased the speed of the fans (aggressive profile) on the card and also of those at the bottom of the case. My doubt / problem is that I don't know if this thing is normal... on some threads here in this forums there are people with similar problems who have been told that the FTW3 heats up a lot more and they have to worry only if it exceeds 88 ° / 90 °. Now I don't know if I reached these temperatures in the old system without noticing becouse I had Windows 7 and no type of software to monitor in-game hardware so zero notifications, alarms, or anything else... or if I have to worry about things like putting new thermal paste on the GPU (a nightmare) or doing an RMA. In conclusion I would like to add that the 3 small LEDs on the side of the card, wich change colours depending on the temeperatures level, had never reached the red status, only blue and green (i have left the default setting for the LEDs). However it seems strange to me that in a case like this Lian-Li the video card reaches such temperatures... Anyway thanks for the patience and sorry for the possible not so perfect English.



Actual setup and airflow

The Lian-Li cases are great but keep in mind that people don't really buy a 1080Ti and put it into a case that isn't a great case with good cooling. The LED on the side is a good indication of what is going on in the case as is seeing what other people are getting as they probably also have a great case and are using good cable management and fans as well.

Hoggle
The Lian-Li cases are great but keep in mind that people don't really buy a 1080Ti and put it into a case that isn't a great case with good cooling. The LED on the side is a good indication of what is going on in the case as is seeing what other people are getting as they probably also have a great case and are using good cable management and fans as well.

You can see my cable management in the attached pic, I don't think its messy. But maybe I have picked the wrong case for a build like this... :\

notfordman
Wouldn't the fan set-up as shown in your pic create negative pressure, depending on fan speeds? Normally you would want positive case pressure, I believe. I'm wondering what would happen with temps, if you reversed the front[middle] fans to intake for more fresh air?  I would be worth trying to see if it helps temps. Your English is fine.  

I don't think that would help here. He already has 3 intake fans directly below the GPU. I agree that typically a bit of positive pressure is desirable. But in this case, slightly negative pressure would seem to help with intake air flowing to the GPU. However, as we really don't know the OP's original temps, we're kinda guessing here.

Might be time to pull the cooler and check / replace the thermal paste, esp with the normal idle temps and hot under load

GGTV-Jon
Might be time to pull the cooler and check / replace the thermal paste, esp with the normal idle temps and hot under load

During the weekend I'm gonna do it, already ordered new thermal paste.

the question is how old is the video card, and have you ever taken it apart and replaced the thermal paste.  
I found that using other brands after a year or two the thermal paste would harden, due to cheap paste.
Might want to disassemble the card and replace the paste use some Arctic cool or maybe some Torque thermal paste or
something with some High Silver rate in it Or even go to a water cooled set up on the card..

  New TIM looks to have helped
 
Was the old TIM covering the entire GPU ?
 
Room temp where you run your PC ?
 
 

Cool GTX
  New TIM looks to have helped
 
Was the old TIM covering the entire GPU ?
 
Room temp where you run your PC ?
 
 

When I removed the front grid and exposed the GPU I noticed that the thermal paste was badly placed, it wasn't covering part of the GPU so I bet the cause for the high temps was that. As for the room temperature I don't know, I never measured it.

FrankCastle1911

GGTV-Jon

FrankCastle1911
After only changing the thermal paste the GPU runs 10°\15° cooler, so we can easily say that's was the problem. Now the max temperatures are around 72°\73° but most of the time, when the fans really kicks in, it runs at 68°\69°.  In any case thanks for the patience and support!

 
Nice!! Glad the collective group was able to get you running a little cooler
 
With that case you should explore either a hybrid setup or an small custom loop for the GPU. Putting that card on a full water block will do wonders for it

Currently I lack the main things to get all this: time and money.

One thing though. If you decide to do this, only the Barrow waterblock will fit on that card in the O11-Dynamic with the card mounted horizontally. You would need to mount the card vertically if you decide to use other blocks! :)
 
-Jacob B.

veganfanatic
I use MX-4 and it has never let me down in all the time I have used it.
 

 
MX-4 is still used here for years and still one of my favorites.  I think I might need to stock up on some soon.
 

FrankCastle1911
After only changing the thermal paste the GPU runs 10°\15° cooler, so we can easily say that's was the problem. Now the max temperatures are around 72°\73° but most of the time, when the fans really kicks in, it runs at 68°\69°.  In any case thanks for the patience and support!

 
That's fantastic news and thought about you might need a TIM replacement since you did say it came from an older system.  TIM's usually need a replacement around 3-4 year mark before they really start drying out and performance takes a hit.

GGTV-Jon

FrankCastle1911
After only changing the thermal paste the GPU runs 10°\15° cooler, so we can easily say that's was the problem. Now the max temperatures are around 72°\73° but most of the time, when the fans really kicks in, it runs at 68°\69°.  In any case thanks for the patience and support!

 
Nice!! Glad the collective group was able to get you running a little cooler
 
With that case you should explore either a hybrid setup or an small custom loop for the GPU. Putting that card on a full water block will do wonders for it

 
I think this is a great idea.  Either go with EVGA's hybrid kit (If you can find any without being price gouged to death.) or NZXT's G12 GPU Bracket  (which is your only option I think), coupled with a 240mm AIO should work really well with this case since you have designated areas for the radiator placement.
 
Of course going custom liquid cooling in this case would be ideal but that would take lots of time, money and patience.  Here are some possibilities for reference.
 
 
Hybrid 



 
Custom H20
 

 
 
 

QuintLeo

veganfanatic
 
Reason my rig looks good, my AX860i powers it
 

That's because it's really a Corsair-specific-packaged Seasonic Snow Silent 860 under the hood.
 
Literally, only change was the case, a few of the cable pinouts, and I think Corsair put their own fan on it (but stuck with a good ball-bearing design).
That's why it's the ONLY power supply model I use from Corsair (though the AX750i I'd consider if I needed something a little smaller).

AX860 =  Seasonic KM3 design.
AX860i = Flextronics