After tweaking and testing the gigabyte bios,i found out some interesting things,such as:

Memory timing:
TRD means actually the Performance level from Memset.
TRD phase adjustement actually is a interesting timing,meaning that if you set it to 1 its a liitle bit slower and permisive,and setting to 31 its actually faster but i couldnt set 5 actually with this setting.At PF 6 i gained 100 kb from 1 to 25.