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Sudden FPS drop, please help

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Hello there,

I have been playing FSX for a years and I have met with a lot of problems, but... few days ago I started my FSX and with my system specs I could play it min. on 25-40 FPS depending on scenery. But when I started it that time, my FPS were dropped to 12. I did not knew why, so I asked on one czech forum for some help, I tried everything from there and everything I googled for - defragmenting, controlling the processor overclock and temperatures, RAM and little bit GPU, unchecking all sceneries and fly without them, delete fsx.cfg and let the game create new and I also reinstalled the game and today windows too! So I installed the fresh game again, without any addons, without any changes to fsx.cfg and I started it. It looked great after start - 150 fps, but.. when I moved the aircraft or I started looking around, FPS suddenly dropped to 20. I already do not know yet where the problem is, so I am asking here... I also made a video with my phone to see what I see, FPS are included there to see the drops.. also in 2:05 time there are some artefacts from trees... it is default FSX. Thank you very much for any help... i dont know what to try, what to do with graphic card, how to test it or what. These things are happening only in FSX, no other game has got these problems.

Video: https://www.dropbox.com/s/gx8d4fw5xuujgv7/VIDEO0070.3gp

System specs: MB: GIGABYTE Z87-HD3
CPU: Intel Core i5 4670k
Cooler: GELID Solutions Tranquillo rev. 2
Gpu: GeForce GTX 460
RAM: 8GB
Power: Seasonic S12II-520 Bronze bulk
HDD: Seagate Barracuda 7200.14 1000GB

The artifacts are caused by memory starvation.  FSX cannot render the object fast enough.  Of course, you are rotating around your aircraft at a high rate of speed so that is the probable cause.  If the spikes or artifacts remain when you stop rotating around the aircraft, then you are getting memory starvation.  The scenery does not look like the default but then I am probably wrong as I have not seen default textures for awhile.  Autogen uses the most resources.  A high setting will cause fps to fluctuate depending on the view.  Microsoft recommends this be tweaked in your fsx.cfg - http://support.microsoft.com/kb/555739 to provide a more enjoyable flight experience.

 

Your graphics do not look too bad for the default.  It's just the fluctuation of the fps that might be a problem.  Anything lower than 15 fps I consider an issue.  My only suggestion is to look at the following guide as far as settings for your Fsx.cfg and your video card settings - http://www.simforums.com/forums/drivers-nv-inspector-fsxcfg-complete-guide_topic36586.html.  It is constantly updated.  You have just one HDD and no SSD so it is extremely important that you defrag your HDD especially after installing FSX/Acceleration or any addon.  For some reason these programs throw files all over the HDD in no logical or sensible order.  You will see a major improvement doing just this alone.

 

Best regards,

Jim

Jim Young | AVSIM Online! - Simming's Premier Resource!

Member, AVSIM Board of Directors - Serving AVSIM since 2001

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