Quote Originally Posted by A-Grey View Post
You can try higher values. It is possible that it works and that your memory runs stable like that to but following JEDEC specs can never be wrong.
JEDEC is not wrong neither is the proposed tREF.
But are you running your memory timings in full JEDEC compatibility?
Unless you are not overclocking
Think that changing from 5-5-5-15 to 5-5-5-14 you are out of JEDEC.
Same goes to tREF .... try whatever is faster AND stable