Hi I have a problem that I can not solve. Im have window 7 home premium in my computer, the processor is amd phenom II x4 965 3.40ghzthe ram mem is 4.00gb ddr3 dual channel, the system is 64 bit operating sys.now my problem is with fsx seting at medium hight went I use pmdg md11 the computer is runing out of memorie.I never have this problem went I was using window xp. but now it takes 3 minutes and the computer kicks me out and tells me that ran out of memorie and tha I have to set my setings to the lowes setings.so if some one can help me I will apresiate.

You really shouldn't be getting an OOM with 64-bit.Do you have HIGHMEMFIX=1 in your fsx.cfg [GRAPHICS] section? If not, put it there and see if that makes a difference.

Even with highmemfix I've had an OOM, but only once with very complex scenery, aircraft, and AI.I was able to cause an OOM error with UTII AI at 100%, UK2000 Heathrow, and the FSlabs Concorde.System is i7 930 @ 3.66ghz, 6gb DDR3

Now I probably don't know much about computers as Ryan does but make sure your ram is completely pushed in the slot. Maybe a stick is lose.

You really shouldn't be getting an OOM with 64-bit.Do you have HIGHMEMFIX=1 in your fsx.cfg [GRAPHICS] section? If not, put it there and see if that makes a difference.

yes it make a difference but it ran out of memorie during landing. flight from klga to krdu

You'd better run some system diagnostics. It's highly unlikely that anyone with a 64b OS and 6Gb memory should ever run of of memory with anything FSX can do.

Also you can check with CPU-Z if your RAM is being detected (Memory & SPD tabs)

Are you running all of the service packs for FSX or acceleration?One of the service packs made FSX "large address aware" this tells FSX that it can use more than 2GB of virtual memory. If FSX doesn't know that it can use more than 2GB ooms can still occur even with a 64bit OS.

Also make sure you've done the uicoreautomation.dll fix that's in the pinned graphics corruption thread - that can cause crashes in the later stages of flight that look just like an OOM error.