Game crashes with CEM enabled.

[Brainless]

I have weird problem. I can not complete any mission with CEM enabled.
When CEM is off, I don't have any problems. But when CEM is enabled, game always crashes, video card freezes, and I need to reset my computer.
Sometimes crashes after 5 seconds in mission, sometimes after couple of minutes.
Also It is strange, that if I let the AI to play (turn autopilot on), the game don't crashes.
I know that my video is not powerful enough, but I can play with CEM off.

Video settings:
Resolution: 1280x1024@75Hz
Full screen: On
Model detail: High
Building detail: Low
Land detail: Medium
Forest: Low
Visual Effects: Medium
Texture quality: High
Anti-Aliasing: Off
Anti-Epilepsy Filter: Off
SSAO: Off
VSYNC: Off
Demage Decals: Low
Building Amount: Low
Land Shading: Low
Grass: Off
Shadows: On
Roads: On

[Blackdog_kt]

CEM is very demanding, in fact many people said that turning it off gave them an extra 10 FPS.

If you fly on autopilot you are essentially having your aircraft fly like the AI ones. The AI uses different engine management routines to save processing power because if they all used the code used for the player aircraft it would make the game unplayable/too low FPS.

For this reason, planes under AI control don't have the exact same precision in CEM as the player planes. For example, instead of monitoring temperatures they might have simpler rules to stop them from "cheating", like "don't use full throttle for more than X minutes". This is all simpler for the PC to calculate than the full CEM which it has to do when under player control, that's why you don't get crashes when you enable the autopilot.