Both cards rev up to 3d mode once game starts. 740mhz. After 30 seconds or so the second card drops down to 301mhz. In games like far cry 2 they both stay 3d performance. In games like half life 2 ,call of duty 4 , or killing floor it doesn't work.
Ive tried to fix it with evga precision, rivatuner, ntune, even bios mod/flashes. Some help please.