I recently bought a Gainward GTX 670, it's the old reference design board, the long version. Apart from reminding me of my dark memories of FX 5800 thanks to its vacuum cleaner sound levels, it randomly crash recovers at games (not at 3dmark or furmark): one moment the screen will turn black and upon returning to game the frame rate has dropped drastically.
I started monitoring it with Riva tuner OST during my game plays and this is what I got:
as you can see the memory auto sets to 2d idle clock level and causing massive FPS drop.
Changing power management mode in NV control panel from adaptive to maximum performance prevented this from happening so far. But makes the GPU to always work at 910 even when I’m just web browsing or watching movie or any simple activity.
I appreciate any help or suggestion you may have upon this matter