nVidia GTX275 going lowpower 3D

[whiplash]

I experience an issue with rF2, that i never had with any other game. After a period of time - 30 to 90 mins probably - my GTX 275 is going from normal 3D power to 3D low settings. Of course this makes driving nearly impossible, for troubleshooting i have to restart my pc.

In the control panel/energy options every thing is turned to full power (no power saving).

It's definitly no temp issue (GPU <70°C), i guess it might be rF2 running in windowed mode, which i have done for now. Turned it of, but still have to test it.

GPU runs @stock, no OC there. Driver is the latest Forceware. Actually I updated these lately...

Anyone with similar experiences?

[Tom Morgan]

hi,
try the nvidia inspector,its a little tool and use the monitor powersave tool with right click on "show overclocking":
http://www.geeks3d.com/20110305/nvid...5-5-available/

[Tosch]

Can you check your Windows Eventlog - System for "Source Display", Event-ID 4101?

[whiplash]

Thanks Tom for the link, didn't know the tool yet! At least this gives me the possibility to change the the power mode manually.

@Tosch: Yes, there is an eventlog ID 4101 (actually a few), how is this going to help? It says that the display driver nvlddmkm didn't react anymore (in german ). ... wow, there is a hell of a lot events saved! :0

[Tosch]

That means you grafics driver crashed. I've the same error with my GTX275 from time to time. After the crash the driver recovers with 3d low settings (GPU @ 400Mhz) and stays there until you reboot. It's not an rFactor specific problem. I have the same error with other games too, like ARMA2.

[whiplash]

Wow, that was fast! Really, this happens to you as welll, and in other games too? Haven't noticed it in other games, neither in ARMA2. And i guess you cannot not notice it!

I have switched to normal fullscreen mode (no windowed) for now and am going to test. If i still have the error i'll just change the 3d-low clocks to the same as the normal ones, this just has to work.

Might also be installing the latest beta-forceware for a try.

[Tosch]

I have the latest Beta (290.53) installed. Doesn't help. Possible solution is to lower the GPU clockspeeds but i never tried it by myself.