Sudden Crossfire FPS drop?

This happened about a week ago, my system prior to this was working flawlessly.

The games in question are The Witcher EE, and Fallout: NV.

The Witcher is known to have issues with vsync, so a nice work around for this is to use D3D Overrider, to my luck it worked for me quite well.

One day while playing the witcher, I decided to alt+tab to check an incoming message I recieved on msn. This is when things started to get strange.

The Witcher would run at 60FPS, jump to 70/80ish (This is when I realized vsync wasnt working anymore) and then afterwards it would lock itself at ~30fps sometimes dropping even more.

Out of curiosity, I checked to see if any other game was running abnormally. I ran Fallout:NV, which also ran perfectly before only to find out that when I'm in the main menu screen or using the pipboy, the game would flicker like mad. Otherwise, the game runs fine.

I've also noticed some flickering in Dawn of Discovery, but it's not as bad as it's in Fallout:NV.

I use a program called RadeonPro to force Crossfire to work properly in Fallout, the Witcher and some other games. At one point the program itself started to flicker too (in windows) otherwise Crossfire doesn't get utilized for some reason.

I'm using 10.10e drivers (also used 10.12).

Games such as Black Ops, Left 4 Dead 2 and Mass Effect 2 work perfectly fine without problems (or that I havent noticed yet).

Any ideas or suggestions would be great!

My specs:

920xm
8GB Ram
5870 in Crossfire

 

Just to check, you rebooted and the problem persisted?
Did you not accidentally touch the Stealth mode button?

 

Yeah, the problem is still there and no I did not touch the stealth button...

I never had any issues with the aforementioned games prior to what I described happening... Like I said, when I run the witcher for example; the frames start off at 60+ fps then all of a sudden drop and lock at 30.

It's almost as if it's trying to do a double vsync or something?

And the flickering I described is also very strange, I never had any type of problem other than the occasioanl and typical fallout:NV crash.

I'm seriously thinking about just formatting and reinstalling everything...

 

How are your temps? Overheating can cause gpu's to throttle their performance.

Also, just a guess but is there an in-game refresh rate option (in the graphics settings it should say something like 60 hrtz or 85 hertz)? Also try playing without vsync and see if the issue is still present.

 

Mine does that occasionally. It does it when I do something dumb like alt-tab in the middle of a game, and when I come back the frames are lower. Try doing a power drain (unplugging, pulling the battery and holding the power button for 20-30 seconds. Worst case do a repair on the driver from add/remove programs.
Refresh rates dont have any effect unless you are using vsync, and even then is would just cap at 60fps.
Its seems to be a problem with the ATI cards as my 280 sli didnt do this.