Dear FSX Community,

 

I am at a point where I do not understand anymore the cause & find a suitable fix & I would be truely grateful if all of you could help fix it..... As my Flt Simming hobby has come to a grinding halt :-(......

 

1st Things 1st: My custom built system specification

 

CPU: AMD Phenom II X4 955 Black Edition C3, 3.2GHz

M BOARD: Gigabyte GA-790XTA-UD4, AMD 790X, AM3, SATA-3

RAM: Corsair TW3X4G1333C9A, 2x2GB, DDR3-1333, [email protected]

New GPU: Club 3D ATI HD 7950 royalQueen 3GB, PCI-E x16 3.0 >>>> Replaced my old GPU: Sapphire HD 5770 Vapor-X 1GB, PCI-E x16 2.0

HDD: Western Digital RE4, 7200rpm, 64MB, 500GB, SATA

 

Win OS: Win 7 Ultimate 32bits SP1

 

FSX Version: FSX Deluxe SP1 + SP2 (together with FSX SDKs (followed instructions from: http://www.fsdevelop...tallation_(FSX)

 

All my above hardware is working properly as I get the nice sounding single POST beep during system boot. Also all the drivers are up to date.

 

Problem:

 

I have been flight siming all this while on my above machine without any problem (including my custom AI & other FS community add-ons) :-). With my new GPU I got a min of 19 FPS (busy airports) & good 50-70 FPS (depending upon by FSX internal settings & scenery complexity). (internal measurement - Shift + Z) (AA always was ON together with Bilinear filtering)

 

Recently, all of a sudden the FPS has dropped to a terrible 1.6 - 2.1 FPS (internal measurement - Shift + Z). I have no clue why. To me it feels as if my FSX is stuck somewhere in both window & full screen mode.

 

I made no changes to the above HW or SW configuration!!!! (Infact I did a Full format HDD & complete re-install windows OS + drivers + FSX (MS Factory Default setup with no custom intervention)

 

Solutions tried to fix the issue without any success:

1. Uninstall & reinstall FSX - No improvement at all.
    
   
2. Full format HDD & complete re-install windows OS + drivers + FSX (MS Factory Default setup without any add-ons or customizations) - No improvement at all.
   

Other Remarks:

 

What I also now realized is that when my computer loads the flight it takes much more time than it used to take before. earlier it used to be much faster to load the flight with smooth frame rates. This is also applicable for my fresh reinstall of win os + MS default FSX environment (without any add-ons or customizations).

 

As stated before I am now totally clueless.. I would highly appreciate help from you FSX veterans out there to get this problem fixed.

 

Thanking all of you in advance.

 

With kind regards Innovator.....

Hi,

 

Have you tried to change it between windowed and full screen mode.-

Happened to me once and I couldn't work out why until I went to go into windowed mode and it suddenly recovered.

 

Does booting your system take longer than it did as this could point to some issue with something else-nothing to do with fsx? Have you installed any new software?

 

You can try this- go into settings, display and check that the graphics card in the scroll down menu is the one you want to use. If for some reason it has switched to integrated graphics (it should never but I have seen fsx do it before)

 

I would be curious to know if this sudden drop happened in a flight or if you started it and it was suddenly slow

 

Last thing is open the task manager, go to performance and see what sort of area is your CPU usage in (%) and how much memory are you using.

 

Tell me what you find

 

Alex

I would also suspect a 3GB video card in a 32-bit OS which will impinge drastically on the Process address space for FSX which is 2GB minus some portion of the VRAM or up to 3GB (minus Vram) if you have the /3GB switch set. I'm surprised that you have not experienced OOM errors. Further, I would suspect that at some point there is an interaction between the installed VRAM and the physical RAM so that the system has to use the paging file to keep going - hence the slow down, It would be interesting to know how many hard paging faults you are experiencing.

 

The answer upgrade to a 64-bit OS and possibly increase your physical RAM to 8GB.

Regards

pH

Dear Alex & pH,

 

Sorry for my late reply...I was out of town for work.....

 

I think I managed to solve the issue.

 

Root cause: 1) ATI Driver latest release (see below) resolved the issue with the earlier one.

 

 

Root cause: 2) I had run the following tool to tweak windows file / folder permission, which ended up corrupting the FSX setup on win 7 32 bit OS.

 

 

Now I have managed to fix the above two issues & have updated my system based on suggestions from both of you B) :lol: .....

 

Here are my latest specs:

Win OS: Win 7 pro 64bits SP1

RAM: Corsair TW3X4G1333C9A, 3x2GB, DDR3-1333, [email protected]

 

 

Other Remarks:

Although I tried to upgrade to 8GB RAM (4 x 2GB configuration), I now am running the system only with a total of 6GB RAM (3 x 2GB configuration). unfortunately, I get the deadly blue error screen. I have confirmed with the OEM that all four RAM sticks are not faulty. I suspect it could be the heat factor. What do you both think?

 

For now the current spec seems to work fine... will conduct more tests & keep you all posted.... any helpful hints from you is highly appreciated....

 

Thanking you both once again.... :yahoo:

 

With kind regards,

Ino

i have the same problem... for days now i cant fly. i serched every topic and everywhere and tried almost any possible option. but to no avail. can u tell me what u did with that programs so i can try fix here as well? thanks in advance R.

i have the same problem... for days now i cant fly. i serched every topic and everywhere and tried almost any possible option. but to no avail. can u tell me what u did with that programs so i can try fix here as well? thanks in advance R.

Hi,

You have posted to a topic that is close to a year old.  To make it easier for us to help you, please post a new topic with the specific issues you are having. 

Thanks,

Jeff