Thanks for your balanced response and suggestions. I’ve yet to tackle thermal paste but makes sense. Fan curve adjustments made negligible difference apart from increasing noise.
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Thanks for your comments. I’m feeling calmer about these temp results, especially considering the SIM appears to run quite well
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Yes I have an AIO on CPU cooler. I’m trying to avoid major mods if I can. Ultimately that may not prove possible if it’s necessary to drive GPU temps down. But a number of responders are suggesting 80 deg C is not a deal breaker
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Thank you everybody for your suggestions. Looks like we have some progress: after dropping the max FPS rate to 45 in the Invidia control panel, my GPU is now “cruising” at 35% -65% while still delivering decent 2560 x 1440 video. Curiously however, it’s still running at around 80 deg C. As before, lifting fan speeds makes no difference. Perhaps there is a thermal paste problem after all.
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UPDATE: Hooray! I think the issue may be fixed - by a combination of changes!
@TastierOsprey80’s suggestion to limit the FPS to 45 in Nvidia Control Panel ( in addition to my earlier failed attempt to limit to 30 this in the SIM settings) dropped the GPU utilisation to 35-64%, but GPU temps were strangely still around 80 deg C
@TenPatrol’s suggestion to engage V- Sync and set Frame Rate Limit to 50% monitor refresh rate maintained the GPU utilisation in 35-64% range and dropped the temps to around 70-75 deg C
I’m not sure why it works this way but if these settings keep doing the job I’ll be very happy. Now to tweak details settings to see if I can lift these above “Medium” and LOD’s above 50 without pushing GPU load and temps too much.
Folks I’d like to thank everyone who took the trouble to respond. For me it’s been a very positive intro to this forum. So pleasing to see so many willing to help. I hope in times to come, as I gain experience, I will be able to help others here too.
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Good that you progressed on your issue. I recently upgraded from the RTX3070 after a few years of excellent service from it. What I did back then was undervolting my GPU (search for it on youtube). This was by far the best performance increase I have ever come across.
To me, undervolting sounded like overclocking of which I have little indepth knowledge, but its actually very easy to do and very safe.
Happy flying!
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Happy to help. Fly safe capt.
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Your hotspot temperature will reach 104 degrees Celsius, and replacing the core heat dissipation silicone grease will solve the problem.
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It was already part of my settings, 50% V-Sync, and sticking to 30 fps.There’s a lot of optimization left to do in the graphics part, it’s undeniable. Understanding how to do it is another subject.
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This was helpful to me also for my 3070ti. I enabled V-sync and my frame rate seems locked to 30 but is smoother in appearance. Before was getting higher and lower rates at times. It will go down to 22-24 on runways.
I though in the many suggested settings V-sync was generally off.
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Interesting thread - I don’t know why I didn’t see it before today but here’s my experience with my (now-retired) RTX 3070.
My PC has an AIO cooler and when I first installed it, I had the radiator fans mounted as intakes, under the theory that outside air would be cooler than air in the case, and thus allow my CPU to run cooler, which was correct as far as it went. In this scenario, when I ran settings which pushed my 3070 into the upper-90% usage (to avoid being CPU limited) or in other games which were more graphically demanding, my GPU temps were 78 - 83C pretty regularly. I started running a custom fan curve which cranked up the GPU fans to 100% at 65C, which did a fair job of keeping peaks to around 80C, and it took longer to reach that peak.
However, with only one exhaust fan and three intake fans at the front, I was effectively smothering my air-cooled GPU with more warm air from the top-mounted radiator fans than I could overcome with cooler air from the intakes at front. So eventually I reversed my radiator fans to make them exhausts instead. Now my CPU is being cooled a bit less efficiently, since the air has already cooled the DRAM, motherboard chipset and SSDs, as well as air blowing through the GPU radiator. So my CPU temps peak about 5C higher than before (upper 60Cs, sometimes 70 - 72C for a second), but my GPU was running a good 10C cooler. At 99% use for an hour straight, my GPU never went about 72C.
Since then, I’ve upgraded my GPU to an RTX 4070 Ti Super. Depite having twice the VRAM, and a much faster core, and despite being the same two-fan compact heat spreader/radiator configuration as my 3070, my GPU temps have never exceeded 63C even after hours at near-100% usage.
I don’t know if the 4070 Ti Super is just that much more efficient, or whether my 3070 was in need of repasting, or what. But in any case, the tl;dr here is always: consider your cooling, the airflow paths through the system, and whether they may be improved.
Thanks for your input DrVenkman3876 . Makes sense to pay attention to the cooling configuration. Interesting observations about the 4080 Ti too.
For the moment I seem to have the temps under control, but that’s as a newbie in the SIM, without coming close to stretching the graphics potential of MSFS 2024.
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