core volts / core clock / mem volt / mem clock / load / mhash
1.112 / 925 / 1.500 / 685 / 238w / 550
1.112 / 925 / 1.500 / 340 / 230w / 547
0.975 / 925 / 1.500 / 150 / 152w / 440
0.950 / 925 / 1.500 / 150 / 140w / 440
0.925 / 925 / 1.500 / 150 / 131w / 440
0.925 / 950 / 1.500 / 150 / 133w / 555
The bolded numbers look wrong. Compare it to your first line.
I know Afterburner has a bug where if you change the voltage without changing the core clocks, the card seems to go into 2D mode. Try 924 MHz.