Just becuze of my GPU hot air hits ram in smal formfactor build as jonsbo Z20 I can not increase my tREFI higher like 40k, I can run memtest5 stable as 50k but soon as I play games for +2 hours my heat from GPU hit ram up to 66C when in test my ram stays below 58C.
tRFC I can not lower below 350, 350 is lowest posting and I do not want to go beyond 1.4V on my ram.
I think there is not much I can do now.
With those currently timmings I tried 6200Mhz but did not work.
My motherboard have a loot of bugs too thats why I feel this is enough.
I had ram training on for better latency but my PC post up in 1 min feels really slow boot time and I turn it off.
FCLK I can run 2233 but not worth to increase VDDG voltage.
I want to say thenks everyone who help me to tune those ram timmings on my other post I have done and removed.