1080 TI Causing High CPU Temps ?

[techgeeknyc]

Hi guys, I recently purchased the below Gigabyte 1080 TI GPU and installed it my Fractal Design Node 304 case. I upgraded from the EVGA 980 TI ACX 2.0. I have a Core I7 6700K at stock speeds, using a Cryorig H7 heatsink/fan.

I've noticed since upgrading to the 1080 TI that my CPU temps have basically skyrocketed. When I'm playing Prey or Dishonored 2 at 4K, my GPU temps stay around 78C, but my CPU now hits a crazy peak of 84C. Even during long gaming sessions, my CPU used to stay in the low 70s C.

My suspicion at this point is due to the "open blower" style cooling on the newly installed Gigabyte 1080 TI that basically just releases all the heat into the case.

But i'm not entirely sure if that's the case. So few questions:

1. Was my old EVGA 980 TI a "blower style" card or was it also too a "open style" card ?

2. Given the Node 304 is SFF, was choosing an open blower like the model I did would be a bad move ? Should I have gone with blower style cards ?

3. Suppose I keep the gigabyte 1080 TI open cooler design. Is there anything I can do with the fans specifically to help out the ambient heat / CPU temps ?

1080 TI: https://www.newegg.com/Product/Prod...cm_re=gigabyte_1080_ti-_-14-125-955-_-Product

980 TI: https://www.newegg.com/Product/Prod...&cm_re=evga_980_ti-_-9SIA7HN5HW6585-_-Product

Thanks!

 

[TheELF]

If you have higher FPS now then your cpu has to work harder to achieve this so that could also be a factor.

 

[Hail The Brain Slug]

84C on that heatsink with a stock 6700k seems much higher than it should be.

1) No, both cards are open style.

2) Providing your case has enough airflow, it shouldn't be the issue.

3) Maybe change your fan profile to be a bit more aggressive.

Are you sure you didnt bump, jostle, tweak, or otherwise interfere with your H7 mounting when you swapped cards? Are the fans operating normally?

I would make sure the fans are fine then remove, repaste, and remount the H7 to be sure it was okay.

 

[casiofx]

If you have higher FPS now then your cpu has to work harder to achieve this so that could also be a factor.

This should be the answer. Previously the 980Ti's performance probably doesn't push the CPU so it have lower utilization pushing lower FPS and thus lower heat.

 

[Bacon1]

It's probably a combo of CPU doing more work and fan running slower or different fan design so not pushing as much air out of the case as before. Try bumping up the fan speed to see if that helps disperse the heat better.

Also the 1080 Ti does appear to use more power

Custom 1080 Ti's can use a lot more power

vs your Evga 980 Ti:

So you are putting an extra ~50w of heat in your case now from the GPU alone.

 

[Termie]

A number of factors are involved. Yes, the 1080 Ti uses more power and generates more heat than the 980 Ti, which was already a hot card. Yes, your CPU is working a bit harder. But most importantly, that case simply can't be used for the setup you have. It has next to zero airflow. If you'd like to keep that form factor, switch to the Fractal Core 500 case, which is a vastly improved version of the Node 304, thanks to the vents on top.

 

[4K_shmoorK]

I agree with with everyone here, CPU is working harder. Try buying a couple 120/140mm fans if you have room for the bottom/front of your case for a good push-pull config. Bought two Cougar Hydrobearing 120s for the bottom of my case (both at a static 1500RPM). Pretty near silent, really helps to move fresh air in and across all hardware when paired with a couple solid front intake 140s. I prefer a 140mm exhaust static at at least 1300RPM.

As some stated, a custom 1080 Ti can use alot of power. But if you ran any kind of moderate/advanced OC on the 980 Ti, power usage should be very close. 1450-1490MHz Core on a custom 980 Ti can easily add another 25-40W.

 

[ZGR]

Since you are gaming at 60hz on GPU limited games, try lowering CPU clocks a bit and/or undervolting CPU. You don't need the full 4.1-4.2 GHz most of the time.

It isn't like 84C is bad or anything, but even lowering clocks down to 3.6 GHz as well as voltage will substantially lower temps while maintaining 60fps.

You can even toggle turbo on/off in windows power plan if you are feeling lazy (CPU performance from 100% to 95%) for a simple fix without needing to do any BIOS changes. That will get you back into the low 70's.

You could also try reapplying the thermal paste.

 

[Carfax83]

Like others have mentioned, your shiny new open air cooled GPU is dumping all of that heat into your case and because your case has weak ventilation, the heat is building up and affecting the temperatures of your other components.

You would be best served by getting another case with much better ventilation. Or, you could return the open air cooled 1080 Ti and get a reference cooled model.

 

[Malogeek]

Here's the obvious one. If your CPU is working harder now causing more heat, are you frame limiting or running games at much higher frames than your monitor refresh?