[SOLVED] GPU gets hot, change fan setup?

[Kreezer]

Hello guys,

Currently my setup looks like this:
-Case: Fractal Design R6
-Gigabyte X470 Aorus Gaming 5 Wifi
-AMD Ryzen 2700X
-Gigabyte Aorus Geforce GTX 1080 Ti
Xtreme
-G. Skill Trident Z RGB DDR4 16GB (2 x
8GB) 3200 CL16
-Samsung 500GB 970 EVO M.2 2280
-Seasonic 750W Focus Plus 80 Plus
Gold
-Corsair H150i Pro AIO
-Toshiba 2TB 7200obr. 64MB P300 OEM

Although I use the AIO in the front (360mm with the three stock fans 120mm) as the intake fans and three 140 mm Dynamic X2 GP-14 (one in the back two in the top) my graphic card reaches 80-85 or even more degrees celsius (70% load) with its fans going on 100%. Unfortunately it gets quiet loud and is annoying.
The idle temp. for the GPU and CPU is around 28-33 degrees celsius

Which fans for the AIO (maybe an additional bottom intake) and four for the exhaust will change the temperature problem of the graphics card and reduce at least a bit the noise level?
It would be great if I could also use those new fans when I will change to a Custom-Watercooling loop in the future (Currently I do not have enough money).
Moreover, do you know if will I need an additional PWM controller with this case?

Thank you in advancd for the help.

 

[justin.m.beauvais]

Have you considered top mounting your radiator and using its fans as exhaust? As it is, the warm air from the radiator is being sucked into the computer. If possible, I'd top mount the radiator with fans exhausting, then make the front an intake with 3 fans, and a single bottom intake. This will get cooler air into the case for the GPU cooler to work with. It should improve temps a bit and only require one more fan than you have, if you don't want to get another fan then just go with 3 in the front. Now, this might make your CPU a few degrees warmer under load, but it should make things quieter.

 

[Kreezer]

I tried to top mount the Radiator but unfortunately my RAM is 0,5mm too high. That is why I thought about an additional fan in the bottom as the intake.
And because hot air is going up about the fans in the top.

I will change the setup and see if the top as the intake and bottom/front as the exhaust will improve the temperature of the GPU.

Just in case which fans would you recommend (120mm) for a more silent but good airflow that I could also use if I change in the future for a Custom-Watercooling?

 

[mortemas]

The Define R6 is not the best case as far as temperatures are concerned. In stock config it is in the bottom 50% of the list:

Here's the link to the full review: https://www.gamersnexus.net/hwreviews/3177-fractal-define-r6-case-review-mid-tower

Having said that, no harm in experimenting to see if you can improve thermals. GamersNexus does test a few different configurations, but it is by no means a test of all possible tweaks. The biggest challenge when it comes to lowering air cooled GPU temps is getting room temperature air into the GPU fans. As suggested, top mounting the CPU rad is a good start, but you might have to consider a new case that is higher up on that list if you can't get acceptable temps with the R6. Cases with the best cooling tend to have a mesh front, whereas the R6 has a sheer front with small vents on the sides of the face which restrict airflow. Note that one of the GamersNexus tests was to remove the front panel, but it only reduced GPU temps by 3 degrees. But again, I don't think they are adding more fans. I think they just test with what is included in the box. You could check PCPartPicker builds and search for similar configurations to see what temps people have achieved and note their configuration. Still not a silver bullet, because some users don't add that info, while others don't specify the type of load they used to get those temps and the data can be unreliable in that regard.

 

[justin.m.beauvais]

I tried to top mount the Radiator but unfortunately my RAM is 0,5mm too high. That is why I thought about an additional fan in the bottom as the intake.
And because hot air is going up about the fans in the top.

I will change the setup and see if the top as the intake and bottom/front as the exhaust will improve the temperature of the GPU.

Just in case which fans would you recommend (120mm) for a more silent but good airflow that I could also use if I change in the future for a Custom-Watercooling?

You know, they make low profile fans. Noctua makes some really good ones. They may solve your RAM clearance problems.

https://www.newegg.com/Product/Prod...an&name=Case Fans&Order=BESTMATCH&isdeptsrh=1

There is an EK one on there too, buuuuut I'm not sure if it is in fact a low profile one.

A bottom intake is a good idea, so long as you are not on any kind of air restricting surface... also make sure that your PSU fan doesn't exhaust down, because then you are just sucking in more hot air.

Now, this one is a crazy long shot... but there used to be fans that took up PCI slots and sucked air in and blew it towards cards. They never really took off... but if you can find one you might just be able to blow cool air onto your graphics card.

 

[mortemas]

The problem with the slim fans is they don't have the static pressure necessary for use with the radiator.

EDIT: Actually, since your rad is a triple fan design, I'm sure you'll be fine with just one slim fan strategically swapped in to clear the RAM. A slim is better than nothing, especially if it's only one out of the three fans on a 360 rad. I'm running an i7-8700K with just a 120mm AIO (with a proper high static pressure fan) and my temps are not more than 70c while gaming (no overclock). The 360 rad gives you plenty of breathing room, so yeah go for the top mounted rad and see if that helps.

 

[Kreezer]

Thank you already now for the help that I received.
I will try out the new setup with the intake from the top and exhaust from the front.

If it won't help i will maybe add some new Noctua NF-F12 industrialPPC-2000 PWM fans.
At least I will be able to use those in a future custom watercooling loop .

 

[ubercake]

The good thing is the temps are well within spec for everything. Max temp on the 1080 ti is 91C and you're not hitting that, but only at 70% GPU usage? I can push my 2080 Ti to 100% GPU usage in BF 1 or BF 5. Have you tried running something like that to see where the temps go?

I've used blower-style GPUs from the 580 through the 1080 and only switched to the open-fan design with the 1080 ti and now the 2080 ti. I can tell you the blower-style 1080 that I had in my R6 was near silent with the same fan setup in the case. Only when I over-clocked it to near 1080 ti levels of performance did it begin to annoy me with the noise.

When I got the 1080 ti (two-fan open-fan cooler design) and put it in there, I was annoyed with the noise, but got used to it because the 30% greater performance tradeoff was worth it. When I got the 2080 ti with nearly an identical two-fan open-fan design, it was even louder.

I reduced the noise a bit by switching the case fan profile in my BIOS to "Turbo". The quietest is louder, but now the loudest is quieter.

It's a little bit more aggressive of a case fan profile, but it's kept my max temps down a few degrees. I'm running two quiet Noctua PWM 140s in front and one in the back with my NH-D15 over the processor. I even put the solid top back on the R6 after changing the BIOS' fan profile to turbo and it's staying consistent with the temps and it's even quieter.

There is such a thing as having too many fans in a case. It can really play with the pressure. You may want to try running just with the AIO fans in the front and a single 140mm exhaust in the rear as you already have with the solid top on the case? It may be quieter overall and the positive pressure may create a situation by which more heat is forced out. Considering pressure and noise when it comes to fans, sometimes less is more.

Every case is different and you have to play with the balance between temperature and noise to get things to what you feel is acceptable. I can tell you those high-performing 1080 Ti' and 2080 Ti cards without the blower-style fans just take the fan noise up a notch though and introduce more heat inside the case overall. You also have to add in the fact that 120mm fans are going to be louder than 140mms per whatever pressure of air movement measurement the fans go by. Any stock fans I've gotten with AIOs (Corsair included) have been very loud compared to any Noctuas.

Also, I ran with a huge thermaltake tower case with 9 fans once. It was always loud. More fans=more noise and at some point the returns on cooling diminish severely as you add more fans to a system. I now try to go with the philosophy of running with as few fans as possible to keep things well within spec. This way noise is minimized per performance.

 

[Kreezer]

Hello Guys,

I managed it to change my fan setup.
Now my AIO is mounted in the top (exhaust) and the other 4 Noctua-F12 industrialPPC-2000 PWM fans (3 in the front as intake, 1 in the back as exhaust) work just as intended. Moreover, I exchanged the thermal paste on my GPU so it idles at around 30 degrees Celsius (room temp. around 25 degrees) with the fans going on 40% and under load it reaches a maximum temp. of 62 degrees Celsius with the fans on 60%.
Thank you very much for your help.