Folks, I'm a little mystified by what's going on. Some time ago I was running a Dell XGS computer with a 3.6 GB Pentium, 2 GB of RAM, and a 7500 rmp hard drive. FSX had some jittery little stutters in turns, and the frame rate slowed a lot in heavily populated areas. But it was enjoyably flyable.I'm now running the ASUS P-67 Sabretooth mobo @ 3.42 Ghz with a core - i7-2600K cpu, 6 GB of fast RAM, and a 10K rmp hard drive. The sim is almost unflyable. The "stutters" are more like pauses. It is almost impossible to line up with the runway, or even fly with any precision at all. I have the sim on a hard drive by itself, and all of the sliders down to minimum. Not much change, if any - long pauses, jittery turns, sometimes locks on pan.Does anyone have any experience with this particular video card, or this set of symptoms who can shed some light on fixing it? I'm just amazed that hardware with this much capability has actually degraded my performance.Thanks.Dewey

There are several things that can cause it.I would do the following stop when issue is found and fixed.:1) Test your memory using mem862) performance test the system using OCCT and RealTemp to monitor temperaturers.3) Tune as per here: http://www.simforums.com/forums/topic34141_post198187.html#1981874) If still not corrected personally I would do a re-install per this: http://www.simforums.com/forums/setting-up-fsx-and-how-to-tune-it_topic29041.html

Folks, I'm a little mystified by what's going on. Some time ago I was running a Dell XGS computer with a 3.6 GB Pentium, 2 GB of RAM, and a 7500 rmp hard drive. FSX had some jittery little stutters in turns, and the frame rate slowed a lot in heavily populated areas. But it was enjoyably flyable.I'm now running the ASUS P-67 Sabretooth mobo @ 3.42 Ghz with a core - i7-2600K cpu, 6 GB of fast RAM, and a 10K rmp hard drive. The sim is almost unflyable. The "stutters" are more like pauses. It is almost impossible to line up with the runway, or even fly with any precision at all. I have the sim on a hard drive by itself, and all of the sliders down to minimum. Not much change, if any - long pauses, jittery turns, sometimes locks on pan.Does anyone have any experience with this particular video card, or this set of symptoms who can shed some light on fixing it? I'm just amazed that hardware with this much capability has actually degraded my performance.Thanks.Dewey

HelloI have the Sabertooth P67, Just go into the bios and select the autotune OC feature.The Sabertooth will have your 2600K running at 4.3ghz whilst in the sim, dropping back to 1.6ghz on day to day tasks.Rock solid board and FSX is smooth as silk here with a 2500K