I am currently building a home cockpit with 5 to 6 monitors running FSX steam edition.

PC i7 7700k 

GTX 1070TI

GTX 970

FSX Steam edition

1x Asus 27 inch 1440p display port main monitor on 1070ti

2 x Acer 19 inch PFD/ND landscape with vga to dvi converter on 970 landscape

1x Hans g 19 inch Upper EICAS VGA to hdmi converter 970  portrait

1 10 in vga monitor Lower EiCAS vga to display port converter on 970 portrait flipped 

1 vrinsight cdu2 vga to hdmi converter on 1070ti portrait

PMDG 737ng 

I can only run 2 monitors on each card successfully. As soon as I try to use a 5th and start moving undocked panels fsx freezes and crashes.

I have tried different combinations but cant get more than 4 without crashing

Only the 2 acer monitors are the same resolution

Any advice how to get them all working or is 4 the limit for fsx

 

Have you tried adding a third video card (low spec)?  Limitation might be 2 video outputs per video card.

Also food for thought - I put PMDG PFD and ND on one monitor (widescreen 27" IIRC) and use Android tablets (or ipads) for 2 FMCs using the Virtual Avionics app.  (I've not used Steam but rather FSX and P3D in this manner).  Upper Eicas and Lower Eicas on individual smaller monitors as you describe . It has been wonderful.  

Mike

I was never able to run five monitors On a single PC using FSX Or FSX:SE.  I eventually went to multiple PCs and WidevieW.

I have only been able to run 4 also, but I have yet to try 5.

Try P3D. The latest 4.5 is very stable.

On 11/20/2019 at 11:02 PM, ncngrr said:

I was never able to run five monitors On a single PC using FSX Or FSX:SE.  I eventually went to multiple PCs and WidevieW.

I run 7 screens in one pc with only one card. 970 gtx. I use 3 outputs for main view 3 tv 32'' , the last output for matrox 3 screens,  and fith one, external card for 27 '' touch monitor. 

With all high parameters in three party airports 12 frames and on air 30....