I'm running FSX on a quad core q6600 with 8 gigs of ram, twin video cards in sli mode, and a load of other niceties.. It freezes every time on me.. Or, did at least.. The problem is not the machine, but the FSX 32 bit architecture. It can only access 3 gigs of ram, and it cant swap out for other ram that you may have as overhead. It also doesnt make real good use of your video cards. its mostly CPU driven. So, if like mine, your FSX is at any given time using over a gig and a half of ram, youve already used up half of whats available too it. Since it doesnt make any real use of the GPUs capabilities, all those textures are also loaded into its available ram. now youve got even less, and those textures are each 4096x4096 pixels in size. you animate them ( as in do a flight ) and now youve got two or three frames loaded into the buffers, or up to three sets of textures loaded into memory. Add in the floating point calculations that this bird needs to be as real as it is, and your talking some majorly serious usage of memory.. And thats where its suspected the freezes come from..I resized one of my textures to 2048x2048 and the last test flight i took, had zero problems. PS.. I'm running 64 bit Windows 7 Ultimate. I could put 64 gigs of ram in this machine if i wanted, and the end result would still be that FSX freezes..

FSX doesn't support Sli !! You will get much better performance and FPS with only one of those cards. Been there..................Done that !

I very much doubt that this is the reason for the panel freezes. I'm running FSX on Windows 7 x64 Home Premium with 4GB of RAM. When the last panel freeze happened, I had autogen to Sparse, flew from Unakleet to Barrow, over the Alaskian tundra in default scenery, where trees and buildings are pretty much non-existent anyway, and there was no traffic around. The FSX.exe was listed with 1.8 GB of memory consumption in the task manager (I've seen it go up as high as 2.8 GB with A2A's Accusim aircraft or PMDG's J-41 and complex scenery without causing problems). The only way to crank down memory consumption any more is by flying another aircraft than the 737NGX. If it's true what you are saying and If that's supposed to be the solution and there won't be an actual fix for the problem, I wan't my money back, because I'm not gonna live with an aircraft that can freeze up on me at any moment while FSX, a very touchy program, keeps running fine after it happened. p.s.: please ignore this little rant if you were just referring to CTDs and not the panel freezes.

Turning down autogen in FSX is opposite to FS9. In FS9, turning the autogen slider down increased performance. In FSX, turning down decreases performance. Try turning autogen slider up to normal and see if you gain any extra. Weird as it may seem, that is how aces studio programmers wrote the code. They must have been drunk at the time.