Just disabled SLI, tried in FS9 and its a bit better. Locked on 20fps it varies between 12 and 16 mostly.

Well I went into Nvidia control panel and ticked "do not use multi gpu mode". No change sadly.... How did you disable ther SLI airtrafficgroup??Matt

Well I went into Nvidia control panel and ticked "do not use multi gpu mode". No change sadly.... How did you disable ther SLI airtrafficgroup??Matt

UPDATE!I loaded Railworks, a train simulator. It ran fine, muffled sound though rather than the nice train noises coming from the speakers connected to my Creative Sound Blaster X-Fi Xtreme Gamer. Anyway, I un-installed that game. Ran the sim and frames in the 2d we really good, BUT same muffled sound quality. I rebooted the PC, loaded the sim again and frames were again bad in the 2d panel :-(Matt

any luck?

Do you have a sound card? If so, pull it and switch to the onboard sound. See if that makes any change.

Do you have a sound card? If so, pull it and switch to the onboard sound. See if that makes any change.

I disabled the Soundblaster X-Fi Xtremee Gamer and no change. The guys who built it are switiching to GTX285 single card tomorrow and are gonna sort it with me there. Fingers crossed.Thanks

let me know how you get on :)

let me know how you get on :)

Removed the dual core card, replaced with singlt GTX285 and now all is good. Moral of the story is. FS9 does not do well with SLI!Matt

nice, what do you suggest I do with my laptop cards?

nice, what do you suggest I do with my laptop cards?

What the shop told me was that the GTX 295 dual core was in essence two GTX 260s stuck together. FS9 cannot take advantage of this. So it seemed to perform even worse than only using one of the 260s. Get a professional to remove the dual core and see what single one you can buy to replace. I can sell you my awesome Rock laptop if you want. I have no use for it now. It still is an amazing FS9 performer!!Matt/EGKK

are you using vista 64 bit?

Motherboard is Gigabyte, GA-EX58-UD3UR. I do not see the need to overclock a $3000US PC to be honest. I will try send it back and get a trusted spec from them that a good friend has. I do not use FSX, only FS9. The frames are OK when in the 2d panel when NOT in fullscreen mode. But nobody like to use anything other than fullscreen.Just really strange!Matt

To run FS9 and especially FSX you need CPU MHZ!!! And when you hit 4.0 MHZ you will feel and see the difference.

To run FS9 and especially FSX you need CPU MHZ!!! And when you hit 4.0 MHZ you will feel and see the difference.

Maybe I could run FSX on my old Sinclair that have a Z80 processor running at 4MHz (http://sv.wikipedia.org/wiki/Zilog_Z80) :(

Maybe I could run FSX on my old Sinclair that have a Z80 processor running at 4MHz (http://sv.wikipedia.org/wiki/Zilog_Z80) :(

Note that multi-core processing is also very beneficial.

Note that multi-core processing is also very beneficial.

Well, it was just a thought :(