Running out of Ram in FSX

When I now run FSX on my new "Superputer" I7, 2060 Graphics an 32 MB ram with 3 screens after a few minutes it shuts down and advises insufficient memory. Any ideas why?

20 20 runs fine on the new PC. FSX ran fine on my old I5 16MB PC.

FSX is a 32 bit application and, as such, can only access a max of 4 GB of virtual address space (VAS). Depending on the add-ons you have installed it is possible to run into the limit, at which point the sim will crash. Photoscenery and complex add-ons like those from PMDG are big contributors to VAS usage. Corrupted scenery add-ons can also cause problems too.

PMDG has an excellent article, linked below, that goes into more detail and has some options to look into.

https://support.precisionmanuals.com/kb/a108/vas-management-stopping-out-of-memory-oom-errors.aspx

And here is another one.

https://kostasfsworld.wordpress.com/fsx-oom-and-addon-vas-usage/

To put it in a different way - you can have all the RAM in the world, FSX will still be limited to the 4 GB of VAS that Loki mentions.

This is a hard limit, and there is no way around that except to get hold of the source code and recompile the whole thing to a 64-bit application.

This actually has been done, and the end result is basically Prepar3D v. 4 and later.

For doing what you can do with FSX as it is, take a look at the two links that Loki provided, and here's a third to a sticky, posted in this forum by Kosta:

https://www.flightsim.com/vbfs/showthread.php?259352-FSX-P3D-Software-and-Hardware-Tweaking-Guide

Jorgen