Hi all,Last week I upgraded from my E8500 system to an I860 system.Framerates are almost the same, except in heavy detailed scenery where they do not go down as much. So a quad core seems to be good.One issue I have is micro stutters in heavy detailed scenery and with lots of clouds.When moving the autogen slider to the left things get better.With my E8500 system I did not have those micro stutters.To compare the 2 systems here the specs :" Old " E8500 [email protected] Maximus Extreme Mobo at 500 fsb6 Gb OCZ DDR1800 @ 1600 XFX 260 Black Edition graphics card ( factory oc )Thermaltake Kandalf case with built in Liquid Cooling SystemThermaltake 700W power supplyW&D 1tb drive2x W&D 500 Gb drives2x 26: Iiyama monitorWindows Vista Ultimate 64 HT onFPS Limiter set to 24 and FSX to unlimited" New "I860 [email protected] (22) Asus P5P55D mobo (181) 6 Gb OCZ DDR1800 @ 1800 XFX 260 Black Edition graphics card ( factory oc )Thermaltake Kandalf case with built in Liquid Cooling SystemThermaltake 700W power supplyW&D 1tb drive2x W&D 500 Gb drives2x 26: Iiyama monitorWindows 7 Ultimate 64 Ht offFPS Limiter set to 24 and FSX to unlimitedFirst I thought of using the Affinitymask tweak but did not do it.According to Nick most system run better without it.I have seen that some of those micro stutters disappear when the FPS Limiter is not running.However my lowest fps are lower than by 15-20%.HT on and off made no difference.I am not sure wether the FPS Limiter is functioning right , because I many times see fps of 33+ where it is set to 24.With my former system I could see that it worked ; it kept the fps below 30 when set to 24.Perhaps something with W7. All suggestions are welcome.

Just made a big step forward.The micro stutters are gone except over Amsterdam where there are lots of canals and waters and where I use a modified version of NL2000's EHAM.I found out that if I get a framerate of lets says 26 in a certain situation with framerates set to Unlimited and set the FPS Limiter exectly to that the fps go down to 22.So I thought that it did not work correctly.When setting the FPS Limiter to 27 , so higher than the 26 in that situation, they stay 26. The second thing I did was uncheck the UTX cars and use the default FSX cars.No micro stutters anymore except over Amnsterdam.Nick mentioned that thre is a bug in FSX regarding changing the Fs9 waves in UTX europe.No waves can make fps drop and stutters might occur.I did not modify anything but have been looking in the window.Would setting it to small waves in UTX Europe and No waves in FSX eliminate the last micro stutters for me ?Perhaps when trying I am going to cause extra stutters.So I am not sure what to do here.

The FPS limiter will not be able to hold a frame rate if your PC can't handle the given scenery. If you set the limiter to 30, in a busy area, like EGLL or something with full AI traffic, it won't be steady at 30, FPS will easily drop to probably 20, and you will get stutters (because it's trying to hold 30). In that case you need to set the limiter to 20, or whatever the attainable FPS is you think you can get....

The FPS limiter will not be able to hold a frame rate if your PC can't handle the given scenery. If you set the limiter to 30, in a busy area, like EGLL or something with full AI traffic, it won't be steady at 30, FPS will easily drop to probably 20, and you will get stutters (because it's trying to hold 30). In that case you need to set the limiter to 20, or whatever the attainable FPS is you think you can get....

There is a catch to this; like I wrote before , if the FPS Limiter comes into action it drags down the framerate more than FSX would do with the slider set to Unlimited.Eg : if you are getting 23 in a detailed scenery and have the FPS Limiter set to 23, than you will get a framerate of 17-18 for half a second which can cause a small stutter.So the idea is to set the FPS Limiter just slightly above what you want in detailed scenery.In my case 28.So till 28 I get the extra performance of the FSX set to Unlimited.When the FPS Limiter comes into action ( around 32-38 ) it drags down the framerate to 23-24 for half a second and than it goes up to around 28. The moment the scenery gets less detailedFSX wants to cranck up de fps and I can see that framerates are going uo to 32-38 again for half a second after which the FPS Limiter drags them own again.And so on.