Well i were mining ETH for some time and i'd just discovered that my AMD FX6300 and Asrock 990FX bootlnecked my hashrate as fu*k -,-

My BIOS setup for 990FX was on AUTO BOOST mode and i't couldnt reach 105 MH/s with 4 GPU rig, when i turned it to manual mode it didn't change anything, but when i put it in state of AMD Dynamic Overclocking Mode for 4% up, my hashrate went up by about 12MH/s...

I just want to leave this stuff here for people that have problems with stability of their rigs, just always check and turn off all that bunch of "auto mode" stuff in your CPU managment.

It came on my mind just when I were starting some additional application on my PC and CPU were boosted for a while of stress and also in the same time my hashrate were turned up a little bit, so i decided to check the BIOS values.

Sorry for my bad english.
Regards.