Guys, I have annoying problem on my testing rig. When I flast rom with new timings, rebooting system and running dual minning- it shows hashrate from previous card settings, now matter how you changing clocks- hashrate stay same(as before flashing). After few reboots it becomes normal for new bios but it very annoying when you trying to find best timings- need to guess it is right numbers or just glitch.
 Any advice?