Microsoft Flight Simulator low on memory problem.

Hi Blair,

I'm assuming that your Win 10 Pro is a 64 bit version and not 32 bit.   And yes, FSX is limited to 4 GB of VAS (Virtual Address Space, not RAM) as it is a 32 bit application.

First off:  have you got the HIGHMEMFIX=1 entry in your fsx.cfg?   You probably know what I'm referring to and though it may not necessarily solve your issue, it is a must for FSX.

Secondly:  you have a very good setup for FSX, so no problems in that regard.   With your installed photoreal scenery, can you load only the scenery that is applicable to your flight plan?   In other words, go to FSX Settings and to your Scenery Library.  Make sure that Add On Scenery is at the top.   If you have your photoreal U.S. States under that, make sure that the (two) cities that are on your flight plan are the only ones enabled (of the photoreal cities, that is). 

Thirdly:   make sure that your page file is set to your preference.   It is normally suggested to have it set to "Automatically manage paging file size for all drives".   Though you can set a Custom size depending on the available space on your SSD.

If after all that you are still getting OOM errors, it could be that your VAS  is running low (usually because of photoreal scenery, heavy textures, clouds, high LOD radius, etc.) and may also be a high frame rate setting (generally 30 fps is considered more that adequate for smoothness).   So, if you are still seeing OOMs, then you may need to start from scratch (i.e. deactivate all photoreal scenery and move sliders to minimums (what is acceptable to you), with FPS at 30) and see how you go.   If no OOM, then progressively move up the scale and find out what is causing the problem.

Chris

NB:  Have a look at this good article from PMDG:   

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