Crashes

[Mayday]

Can anyone tell me what am i doing wrong?
I can run Calypso on very high settings,but here i get crashes constantly-can be very anoying when u have just spend 4-5 ped shooting at a mob.
I tryed to lover the settings to low,but still the same fps....

 

[Svarog]

I suspect it's the problem of specific places, like a glitch in the terrain models which causes ram overflow.
The only time I always crash is when I try to run through that overturned quad at ARC HQ, which isn't even really there - the guy isn't on the planet and has his quad in inventory