i have dual 2*2 ddr2 1066 ram in my pc. when i run fsx, i see my 2,5 gigs of ram in use, and sometimes i experience ctd expecially in long flights.are my ram sticks enough or i should add more ram?

Yup, you should definitely consider adding more RAM and indeed if your motherboard can support it, DDR3.Al

Yup, you should definitely consider adding more RAM and indeed if your motherboard can support it, DDR3.Al

I beg to disagree. 4GB is more than enough and very few boards will supoort both DDR2 and DDR3 anyway.cenkcnk, check your event viewer to see what's crashing the sim and let us know before getting more RAMWhat's your OS? 32 or 64bit?

I beg to disagree. 4GB is more than enough and very few boards will supoort both DDR2 and DDR3 anyway.cenkcnk, check your event viewer to see what's crashing the sim and let us know before getting more RAMWhat's your OS? 32 or 64bit?

Dario, I agree with you for yhe most part but It may seem impossible to you seeing how FSX is 32bit, however It IS possible to get OOMs with even 6GB on a 64bit OS when Flying FSX. How? Add a well loaded OS, now add howmuch memory is taken up by the GPU and just a few tweaks to FSX and you can go over the edge. Ever watch how much memory your GPU will use when you fly with FSX loaded with addons and fly with LOD at 8.5? OOM!

Dario, I agree with you for yhe most part but It may seem impossible to you seeing how FSX is 32bit, however It IS possible to get OOMs with even 6GB on a 64bit OS when Flying FSX. How? Add a well loaded OS, now add howmuch memory is taken up by the GPU and just a few tweaks to FSX and you can go over the edge. Ever watch how much memory your GPU will use when you fly with FSX loaded with addons and fly with LOD at 8.5? OOM!

I am not trying to be disagreeable in anyway nor cause argument but a 64-bit OS does not assign GUI addressing in the same manner a 32-bit system does (if there were no difference we all would be on 32-bit OS). In a 64-bit system full 4Gb is available to the program. However if I OOM'd 4Gb of memory I would regard this as unusual and investigate cause, which would include page file settings, memory stick testing, and proper installation of FSX SP1 and SP2 and run process monitor to identify issue and validate a memory leak.

My OS is Win7 64bit. I have limited budget an i have two options:-Replace my GTX 260 video card with a GTX460 1 Gb-Add 2 or 4 gigs rami can't do both together, and i have to make a decision.

My OS is Win7 64bit. I have limited budget an i have two options:-Replace my GTX 260 video card with a GTX460 1 Gb-Add 2 or 4 gigs rami can't do both together, and i have to make a decision.

none of those "upgrades" are needed. what does your event viewer have to say about the crashes again?are you using the highmemfix=1 and uiautomationcore.dll fixes already?

ok i can add highmemfix code to fsx.cfg but i don't know anything about uiautomationcore.dll

ok i can add highmemfix code to fsx.cfg but i don't know anything about uiautomationcore.dll

http://forums1.avsim.net/topic/273341-heres-the-apparent-fix-to-fsx-crashing-win-7-x64/

Thanks