On 3/3/2021 at 5:57 AM, pgde said:

Noel -- are you sure about exhausting heat out the back of the PC case? See https://www.tomshardware.com/reviews/nvidia-geforce-rtx-3090-review/2

 

No, I assumed what someone here told was true, but thanks for the heads up.

On 3/1/2021 at 5:55 PM, killthespam said:

I have I9 10900K but with 3090 and I found out that P3D and also MSFS2020 for some reason will overheat initially the GPU followed by CPU in some conditions based on certain textures. The solution for me was to have VSYNC on and limit FPS at 30.

I have to introduce the following; my GPU and CPU were water-cooled and together on the same tubing (system).

Yesterday I replaced my GPU with one that is not water-cooled and reset the Nvidia control panel to default. I found out that CPU temps were normal and the GPU overheated, resulting in a CTD. After more testing, I turned off the EA Mode and my GPU temps went down, but still not happy. I went back to VSYNC on and limit FPS at 30 and my temps are normal now, no CTD or crash anymore.

In my opinion, there is something going on related to textures for both sims that Nvidia doesn't like it.

I had the same issue before with a TITAN RTX 24 GB video card and that setting did fix the problem for me.

Interesting to find out if some other users have the same issues with the ATI or AMD Radeon cards.

Also, there is an Asus Bios Update with Resizable BAR and Intel 10900k that I didn't try yet which is supposed to improve things.

The Skytech system has two days of restart-free running after turning VSYNC on and limiting FPS to 90, so that is promising. The Alienware was serviced yesterday, so we will see what happens with that one. Thanks for your advice!

Very happy to hear that is working.

It's time now after spending so much money to enjoy the system.

On 3/1/2021 at 5:55 PM, killthespam said:

I have I9 10900K but with 3090 and I found out that P3D and also MSFS2020 for some reason will overheat initially the GPU followed by CPU in some conditions based on certain textures. The solution for me was to have VSYNC on and limit FPS at 30.

I went back to VSYNC on and limit FPS at 30 and my temps are normal now, no CTD or crash anymore.

To me this seems completely predicted.  You have a monster GPU, it cranks out serious heat and into the case no less, and you are asking it to crank out as many frames as possible.  Is it any wonder it overheated?  If it's P3D you limited frames w/ it's frame rate slider it's pretty much common knowledge that this, at least for prior GPUs going back to FSX, is a bad thing and typically best to leave it at UNLIMITED.  At that point depending on you and your monitor you have a couple other options to limit frames.  IMO, the most effective means, is the one that tells your CPU and GPU upfront that it only needs to crank out 30 frames ever, and that is by limiting frames w/ a 30hz screen refresh.  Fortunately my Dell 3415W can do 30hz natively, though you won't find it in the documentation, just thru NCP.  If your screen can't do that, or your someone who for whatever reason can't tolerate 30hz in a flight sim, then the next best approach might be MSI Afterburner w/ RTSS' scanline sync set to x/2, where x is your selected screen refresh.  So for 60hz, you can vsync to 30 to get 30fps, or if you could set your refresh to 100Hz you would now be limiting to 50fps.  This methods give stutter-free smooth performance w/ the least heat production.   My HT enabled 9900K runs at 5ghz on all cores, yet rarely gets over 50C.  My GPU is too different from yours to matter in this discussion probably.  I would love to have a 3090 and would still vsync to 30Hz which would allow to always run at Ultra anywhere on the planet at least in the TBM930, and I still have big headroom on the CPU side to accommodate PMDGware.  DX-12 will improve that presumably.  Presumably true GSYNC displays can get you similar/same smooth thru vsync, but w/ a different rate set.  My screen does 30Hz, and in a double-blinded test, operating either simulator (IOW, not creating an artificial test to tease out the correct rate), I will say people will not be able to tell the difference be it taxiing, panning in the cockpit, flying etc between vsync to 30Hz and 60hz.  For the latter we need to find an easier place to ALWAYS maintain that minimum 60fps else stutters will ensue.  At 30Hz/30fps you can do this test anywhere, like here at KLAX in the TBM.  Notice the main thread (CPU8 as it was HT'd) is only at 63%, but my poor RTX 2070 Super is about maxed out.  Still it's maintaining 30fps and is liquid smooth in all ways including the plane that's just landing on 25L to my left.  Can't wait for a better GPU!  It's scenes like this that remind you of how well MSFS performs over P3D 4.5 at least.  And already there is plenty of CPU headroom more or less.  Now if I could run all sliders to Ultra and at 60fps anywhere I may ever fly, then great I'm all for it.  Right now, that's a pipe dream.  Plus, FWIW, when I do the test myself between vsync at 30hz or 60Hz,. often it seems 30Hz is superior.  Don't ask me why, and that may well be placebo.  That being said, there is only upside for vsync to 30Hz.   Some report heinous mouse lag, but not here it's just not a big deal and barely perceptible if at all.  Some compared to the benefits, the detriments are no contest as an offset.

Edited March 5, 20215 yr by Noel