17 days ago - AndrewT - Direct link
Right click on ck3.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.

Then in the launcher Game Settings menu, select fullScreen display mode, Vsync off, cap refresh rate at 60.

Then start a new campaign with NO mods at all enabled. Do you still get this?

If so DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log , exceptions.log  
16 days ago - AndrewT - Direct link
That is certainly possible, of course, we have no way of telling that from our files.

Did you try what I suggested? That ought to reduce the GPU temperatures.  
15 days ago - AndrewT - Direct link
Can i get the info files i asked for before, please?  
14 days ago - AndrewT - Direct link
Glocc on da blocc said: Sorry for interjecting but I think I might have a similar problem, I do have my crash files from prior to my increasing of paging size (which didn't help) so if it can help in anyway I'll provide them.

Edit: I forgot to mention I have out of date mods but up until the beginning of this month I've had no prior problems with them
We can't help with modded games here I'm afraid. Do you get this problem in a campaign that's never had any mods used in it?  
13 days ago - AndrewT - Direct link
I am sory but I know nothng about mods. Your best source of help for that is the User Mods forum here, post an affected save game there and a list of what mods you use.

Good luck!