Please reference this post, http://forums.avsim.net/dcboard.php?az=sho...ing_type=searchToday it occurred to me that I should check my RAM usage when I get those mega horrible frame rates. Well, I got the same thing happening to me with the F/18-18 virtual cockpit again tonight....But this time I checked my RAM, and it was maxed out at 2GB!What is going on here? Is my RAM crapping out, or am I just running out of RAM, or is there a programming error within FSX Acceleration? I never had this problem prior to Acceleration either....Is there a memory leak in Acceleration? Or is my system out of whack?EDIT: ok with the link it still may be fuzzy, so I'm going to explain what I'm getting right now...FSX Accel runs pretty well on my PC, and I've noticed some improvements from SP1, and RTM of course. However, I get this very strange bug with the virtual cockpits of all the newer Accel planes.Sometimes I can be well into a flight, switch to external view, switch back to VC and WHAM! - 2.5 FPS....when I normally get 15. I can simply switch to external view and I'm instantly back to 15 FPS. Sometimes, if I go back to VC I am still at the 2.5, other times it will immediately jump back to 15 FPS. Other times, it sticks at 2.5, then after a few seconds, the 15FPS comes back....this has happened with all the Accel acft VC's....I noticed my RAM usage at those very low frame rate moments is pegged at 2GB.... But the question is why? Just too much for my Pc to handle? but why would the performance return to normal after a few seconds, or a swapping of views???? A little tidbit about my RAM.... the stuff I bought from newegg, said it is supposed to run 4-4-4-12 or something like that, but I've been running SPD timings, 5-5-5-18, at the stock voltage, 1.9, yet Corsair website says 2.1 and cas 4 timings.... could this be the issue? Or is there a programming bug with Acceleration?heres a cpu-z shot, I switched to 4-4-4-12, and 2.1volts, but CPUz still says 376Mhz...is that right?Thanks for any insight ;)http://forums.avsim.net/user_files/181191.jpg

Ryan,Your RAM appears to be running some sort of divider which limits its speed. Surely you have PC6400 DDR2-800 ram? There's usually a setting in the BIOS that will allow this sort of thing when overclocking. Show that screenshot above, but move to the CPU tab.Regards,Jim Karn

Hmmm..... it might just be the way cpuz displays thingshttp://forums.avsim.net/user_files/181216.jpghttp://forums.avsim.net/user_files/181217.jpg

Yep, you're probably right. It just seemed your memory wasn't running up to speed.Regards,Jim Karn

Ryan, Your RAM is running at CPU / 8 = 3016 / 8 = 377MHz, which is close enough to DDR2-800 rated speed, so that should not be the issue.Re your RAM use pegging at 2GB. What are you using to tell that RAM usage is pegged this high? Are you sure that it is FSX using all this RAM or is another process using it?Gary

No it's not all FSX, but I'm using Memstatus 2.5 by Kevin ReemsI've just never had Windows using all my RAM lol!Still though, it's odd that after a few seconds, the FPS would be back to normal...

I'd use the process tab view, sorted by memory use, of windows task manager to see what is using what when the slow down occurs. You may have to run in windowed mode with windows task manage always on top to catch the culprit.Gary

Well I've done that before, and I run nothing in the system tray other than volume and the occasional instant messenger (virus disabled)But FSX does use a TON of mem