Thanks for for your answer, but my memory is hynix 4 and not supported on polarisbioseditor 1.7.5 ...
Polaris Bios Editor v3PRO
SRBPolaris V3.5
Polaris Bios Editor v3PRO this is a paid version, but there are free versions on the net
I looked at the reviews, but the professional version already contains collections of memory timings for each mining mode. In the free version, you need to find the timings yourself.
Try these 2 programs, I am sure you will solve your problem.