Watercooled NVIDIA GTX 1080 Temperature Problems

Adnel1

Commendable
Jul 30, 2016
3
0
1,510
Hello,

I recently build a new rig with the purpose of doing some hardcore gaming on it. As I was doing some benchmarking I realized that the temperature on my NVIDIA GTX 1080 GPU continues to go up into dangerous territory. The most I've let it gone up to has been 95° Celsius before freaking out and quitting the game in a haste. I am worried because I have read that the most it should go up to under load should be 85° Celsius.

I will note that I did not notice the performance of the card go down while stress testing it on Ultra using Arma 3 and Tomb Raider (the first game not the recently released one). I also did a stress test using a benchmarking tool called Benchmark Valley and the same thing happened, the temperature kept going up without any signs of stopping. Note: I haven't overclocked my card.

When idle my card runs at a steady 38° Celsius and the hottest CPU core is 25° Celsius on idle.

I installed a water cooling system using components from XSPC. The water flow for the cooling system loops in the in the following order. It starts in the D5 Photon 170 Reservoir/Pump Combo. Then goes to the RX240 Dual Fan Radiator V3. Then to the CPU waterblock a RayStorm CPU (Intel) V3, it continues on to the GPU waterblock a Razor GTX 1080 with backplate, and finally, it goes through the RAM memory waterblock.

So I guess this brings us to my question(s). How do I stop the temperatures from going so high while still running at maximum capacity? Is there a way to cap the temperature of the GPU? In other words is there a way I can determine at what point I would like my card to lower some of its performance in order for it to keep a steady safe temperature? What is the best course of action in my case?

Your help is much appreciated.

Here is a reading of the temperature I got after testing.
Value: 44°C Min: 38°C Max: 91°C
 

fabiodrm

Reputable
Feb 12, 2016
659
0
5,360
Imo the loop should be:
Reservoir (Cool water) -> GPU/CPU/Memory (Hot water) -> Radioator (Hot -> cool) -> Reservoir (Cool water)

also, are you sure the gpu block are seated correctly? how is your CPU temps?
 

Adnel1

Commendable
Jul 30, 2016
3
0
1,510


I am pretty sure the GPU block is seated correctly I payed close attention when installing. Another reason why I think I did it correctly is because when the GPU is not under load the temperature stays at a steady 34°C never rising above 40°C. The CPU temperature at idle are usually something from 25°C to 27°C and under load it doesn't rise above 35°C.

I think that the radiator might be too small to cool the whole system since it is only a two fan radiator.

I bought a single fan radiator which I am waiting for it to be delivered, and the plan is to have the water from the CPU block run to the single fan radiator and from the radiator to the GPU. So the whole loop will look something like this. Reservoir/Pump Combo > Two Fan Radiator > CPU Block > Single Fan Radiator > GPU Block > Memory RAM Block > back to Reservoir.

I'll let you know how that turns out. I am not Sure if the Optimal way to have the radiator fans is to inflow or outflow. I am guessing inflow since the outside air is cooler.
 
Probably too much thermal paste being applied when installing block? In the past i got my brand new 660 being way too hot when gaming (around 80c) when pretty much all review showing that most 660 did not even hit 70c when fully loaded. Idle temp was fine though at 38c or so. Because i did not like the high temp when such gpu was suppose to be not that hot to begin with i end up reapplying the thermal paste. And it really works. After that the temperature don't even hit 70c when gaming.
 

Adnel1

Commendable
Jul 30, 2016
3
0
1,510
Once I had my radiator delivered I went ahead and installed and let me say it worked wonders. The problem was as I suspected, not enough radiator power to cool the loop. Now my GPU temperatures under load don't exceed 50°C even after playing for a while. Thank you everyone your answers gave me more insight into what could have been the problem.