Hi gents!

 

Yesterday my FSX went crazy performance wise. I didn't fire up FSX for a few days, so I can't remember exactly if I did anything in my system that would affect FSX's performance (I've been doing some experiences in Gmax, though I don't see how can it affect FSX in any way). By low performance I mean low frames, stuttering like hell and lots of glitches while panning view.

 

Here's my system btw:

Intel i5 3750k @stock (yes, I know... :rolleyes: , since I bought it, I didn't have the necessary time yet to learn on how to OC it properly);

ATI 5770 1Gb RAM

8Gb system RAM

Asrock Z77 Pro4

 

First thing I did was to backup current installation and settings folders, try a clean FSX.cfg, then a stock Scenery.cfg+scenery cache deleted and finally a full vanilla FSX+Acc installation. No tweaks, no scenery, no mods whatsoever. No good here.

Then I tried to install latest ATI drivers (13.9), which, I don't know why but it didn't actually update the drivers, so I fully uninstalled ATI's drivers, through either setup manager and a program called "Display Driver Uninstaller". Now whenever I try to install 13.9 or 13.4, the setup manager won't recognize my video card. Anyway, I went on and installed the drivers alone manually, through device manager. It didn't any good either, even worse as now it doesn't install properly.

 

Then I went through i5's integrated HD4000 GPU and guess what, FSX running on full power again. Even with my full FSX installation+settings.

 

On other games everything seems to be normal with the ATI.

 

Does anybody have a clue?

 

Thanks in advance! :wink:

NOTE: Driver 13.9 does not work with FSX DX9. Current 13.11 v9.2 BETA does or 13.4 WHQL

 

In terms of performance, make sure you are not having core parking...

http://forums.amd.com/game/messageview.cfm?catid=444&threadid=166968&enterthread=y

 

NOTE: Driver 13.9 does not work with FSX DX9. Current 13.11 v9.2 BETA does or 13.4 WHQL

 

In terms of clean wipe of AMD drivers and reinstall

http://forums.amd.com/game/messageview.cfm?catid=444&threadid=162444&enterthread=y

 

TIP - You might want to do this in safe mode. Also when you fully uninstall the drivers as described above, don't reboot right away. Say "no, I will reboot later". Then go into device manager and find the diplay driver. Right Click it and hit UNINSTALL and confirm to remove the files as well. Then reboot. Once back up... Go ahead and install 13.11 BETA 9.2 provided (as stated in the article) that your .NET 4.5 is installed correctly.

 

Good luck.

 

Charles.

Thanks for your hints, Charles! Will have to check those links later.

 

Just two side notes...

First is that the integrated Intel GPU is always on load, even in desktop, despite I'm using my ATI card as the only source of image, no second monitor connected to the MoBo. As per GPU-Z, it's running @350MHz core clock and @800MHz memory clock. Shouldn't it be completely idle?
Second, in default Friday Harbour flight, FSX is using between 25~30% CPU. I'm not sure if this value is normal, will have to check with the iGPU later.

Very strange indeed. Newer, more GPU demanding games such as COD Black Ops 2, F1 2012, PES 2014 are running perfectly fine.

Ok, so I followed a lead regarding a possible corrupt .NET framework 4.5 preventing Catalyst from installing correctly.

I've made a complete clean installation of .NET 4.5, but still Catalyst wouldn't recognize my video card, but hey, since I was desperate already, I've decided to try latest 13.11 Beta4 drivers. I installed them manually, on top of 13.4, through device manager. Guess what... FSX back to normal.

Today, when I fired FSX, it seemed good for a few moments but eventually it got sh***y again! <_<