Today I upgraded my RAm from 1 Gig to 3 Gigs but no change in FSX. However, thats ok. I flew the default King Air. it seemed to be very touchy and very unrealistic. I may have to modify some joystick settings for that. I had one other problem the planes seem to have flickering dots on them on occasion. Anyone have any ideas why that would happen or how to correct it. I also am used to FS9 ATC, I had sped up the voices using editvoicepack so when i flew in fsx it was like in slow-mo but im sure that should be fixed in the near future. For now Im back to FS9 for the PMDG flights. Thanks in advance to anyone who can help with the flickering prob.

Have a look around the forums for various tweaks. You'll find some don't in any way affect the way the sim looks yet will make huge improvements to the performance of the sim.Also, the default aircraft don't have the best flight models. You'll be better off using third-party addons which will fly better in FSX due to the improved flight modelling.Even little things like switching to 2.X low water or reducing autogen tree density in the FSX.CFG file make a very big improvement to the performance, and the pearler of tweaks: the FIBER_FRAME_TIME_FRACTION, can potentially make FSX fly with little or no noticeable reduction in texture quality.James

FSX uses just over 1 gig of memory on my system so to me the only place you would see an improvement by adding memory would be switching between flights, not while flying.How much memory does your video card have? You might be running out of texture memory. I have a 128mb ATI 9800 Pro and I don't have flickering plane textures. I do get transparent planes for a few seconds at airports like Boston.Bruce

my video card is an ati radeon 9800 256mb

No, FSX will use much more than 1GB, last night it used all my precious 2048MB (2GB) of RAM.... Of course I was giving it a real hard time switching views etc etc, tons of autogen, etc. Most I've heard from Bill @ ESDG was using 2.5GB !!!

I have a question: How can you tell how much memory the sim is using? I would like to test it but don't know how.

Hi,Try out Memstatus. Just search on Google for it.Hope that helps,Jim

The best indicator of how much memory you are using is right on "Windows Task Manager" under the "Performance" tab. That value is the "Peak" value in the "Commit Charge (K)" box. That value shows how much memory you have used since the last reboot. So reboot and then run FSX. After you exit FSX this value will contain the most memory that you used while playing FSX. You want to have more real memory than this value. If you have less real memory than you are swapping to your hard disk. If you have more than that you aren't using it.I just set all my sliders to the right and flew around Rio De Janeiro. After exiting FSX my Peak value is 1371220k. I have 1572340k memory (1.5 gig) installed. ryanbatcund, I don't know what you are doing that you are using 2 gig of ram. Do you have addons? Where were you flying? Maybe you have a bug in your drivers?Bruce

Thanks. That is a neat little program. I wish I could see it while the flight sim is running though. I just shut the sim down and the graph was red---not good but I couldn't tell exactly how high it went

See my post above about Task Manager. You can alt-tab out of fsx and look at the tools while it's running.Bruce

Okay I'll try that

Oh trust me, you can bog it down...I was doing some crazy things, like flying over forests with massive autogen, then slewing a couple miles away, letting it refresh the entire forest, then slewing back, then back over the city, then back to the forest, switching to the large global map view then back....I have Corsair XMS DDR400 ... 2.5-3-3-6, stock settings are 3-3-3-8 if I set it to auto, I;m guessing my mobo's bios is a bit older....but I know the stuff runs cas2.5 on AMD, CL2 on intel, and oh i run ddr vcore @ 2.75v instead of auto which is 2.6 or .65 I can't remember.

>The best indicator of how much memory you are using is right>on "Windows Task Manager" under the "Performance" tab. That>value is the "Peak" value in the "Commit Charge (K)" box. >That value shows how much memory you have used since the last>reboot. So reboot and then run FSX. After you exit FSX this>value will contain the most memory that you used while playing>FSX. You want to have more real memory than this value. If>you have less real memory than you are swapping to your hard>disk. If you have more than that you aren't using it.>BruceHi BruceThanks for the tip. The value shown is it in Bites? Like I checked now and on my PC now it shows 361340 Is this .361340Gb?Stelios

That would be approximately 361 MB. or .36 gig.Bruce

I definitely can bog it down, but on my system the most memory I've gotten to use is th 1.37 gig with all the sliders turned up to the max.With my normal settings it consistently uses 1.1 gig.Bruce