So when I’m in the sim, my GPU (RTX 2070S) runs at 100% Utilisation and records a sustained temp of 83C.

I’m not an expert but it concerns me if I had to do a long haul with these temps.

I have tried using both Vsync and the Nvidia control panel to limit FPS to bring the temps down but neither seem to have any impact.

Is this a safe temp for a long haul flight and if not then does anyone have any suggestions for lowering the temp other than shutting the game off?

Thanks. 

Are your fps Locked and show as the amount you set/locked to?

Just now, Nyxx said:

Are your fps Locked and show as the amount you set/locked to?

Not that I can see I set the limit both in the 3D panel and in the sim with no effect.

Have you tried a fan setting app like MSI Afterburner. I believe you're getting no more than 83 C because your graphics card has a hard ceiling at 84 C at which it begins to throttle performance.

GPU fans run pretty slow out of the box but with a fan speed app can easily run fast enough to bring temps down to mid to high 60s which are very reasonable.

14 minutes ago, Highmike said:

Have you tried a fan setting app like MSI Afterburner. I believe you're getting no more than 83 C because your graphics card has a hard ceiling at 84 C at which it begins to throttle performance.

GPU fans run pretty slow out of the box but with a fan speed app can easily run fast enough to bring temps down to mid to high 60s which are very reasonable.

Yeah MSI afterburners have the fans at 90% that’s what’s keeping the temps at 83c

I have a GTX1070 and it runs at 100% and about 89 C .  The card out of the box has a built in fan speed sensor and I assume at high temps its running at 100% because I can hear it.

Better cooling, cooler room, cool it more.....

 

It won't damage the card, but it might throttle performance. 

Same card here. I have an aggressive fan profile, over 75 C my fans ramp up very quickly to 100%. I've been wondering about reversing the top fan in my case so it's pulling hot air out instead of pulling cool air in.

Try turning off the sim's Vsync and framerate limiters and then hard set those limits in Nvidia Control Panel. Remember that the ingame "framerate limiter" doesn't do what its labels say, iirc from posts on here it's 1/2 refresh rate and 1/3 refresh rate instead of 30Hz and 60Hz.

What resolution are you running at? I've found that running at my native 3440px resolution, even with render scaling down to 50 or 60 per cent, thrashes my card. The only way to recover 5 or 6 degrees of thermal headroom is to run the sim at 2K (resolution irrelevant).

14 minutes ago, Darren_Beattie said:

Yeah MSI afterburners have the fans at 90% that’s what’s keeping the temps at 83c

Have you checked for dust?   If not take it out and give it a good blast of compressed air.

How old is the card? If over a couple of years then consider re applying some decent thermal paste.

For reference my 2060 Super maxes hits 76C at worst in the sim and it has rubbish cooling. 

What brand is it btw? 

Just now, lambourne said:

Same card here. I have an aggressive fan profile, over 75 C my fans ramp up very quickly to 100%. I've been wondering about reversing the top fan in my case so it's pulling hot air out instead of pulling cool air in.

Try turning off the sim's Vsync and framerate limiters and then hard set those limits in Nvidia Control Panel. Remember that the ingame "framerate limiter" doesn't do what its labels say, iirc from posts on here it's 1/2 refresh rate and 1/3 refresh rate instead of 30Hz and 60Hz.

What resolution are you running at? I've found that running at my native 3440px resolution, even with render scaling down to 50 or 60 per cent, thrashes my card. The only way to recover 5 or 6 degrees of thermal headroom is to run the sim at 2K (resolution irrelevant).

Yeah I’ve tried changing the FPS limits in the control panel which has no effect, I run at 2k 

3 hours ago, Darren_Beattie said:

Yeah MSI afterburners have the fans at 90% that’s what’s keeping the temps at 83c

Did you try this?

 

 

The problem I see is that MSFS2020 is not properly optimized (Compared to P3D, XP11, DCS) where temps are well below what we experiencing with this software.

I see many many people that don't have PC cooling issues going about under-clocking, under-voltage, basically downgrading expensive video cards just to stay within acceptable temperatures while the problem is not the video card.

All these adjustments don't fix the faulty programming of a game, I wished people complain to the software manufacturer and ask for a real fix, especially when other games don't have this obvious issue.

Edited August 11, 20214 yr by killthespam
correct link

I just ran msfs to double check...  And just looking and zooming around the world map my gpu is at 100% and my temp goes from 56c idle to 82c.

I just googled my card and unsafe temp is around 94c. So thast about 181 F just looking around the world map and unsafe temp of 200F or so...

Only 20 degrees saftey margin...

 

Time to start looking for a liquid cooled GPU...

 

You can probably improve it slightly by replacing the thermal paste on the GPU with something better like NH2 or Thermal Grizzly but do not use liquid metal and do not do it if the card is still under warranty as you will probably void the warranty.

I would not expect more than a few degrees improvement but it might help.

You need better cooling. I have a 2080S and I normally let the sim run for hours overnight. GPU at 100% never goes over 70C

Undervolt it with Afterburner. Pretty easy. I got my 3080ti from 400 Watt and 82 degrees to 300 Watt and 70 degrees with almost the same 3DMark score just by undervolting it. 

And I got an even higher score than stock. Undervolting is key for temps. And lower temps mean higher frequencies. 

 

This is the voltage curve I use at the moment. Its running around 10 degrees cooler than stock:

https://photos.app.goo.gl/vDkNz19tchCWR4ud8

 

And this is the result:

https://photos.app.goo.gl/TKkJnhBNHnsR4yzP7

 

Long story short: You wont regret undervolting!

Edited August 11, 20214 yr by swiesma