Not sure where I did wrong, here's my current timing settings.
My setup: 9950X3D, X870E Godlike MB, 6 IN fans and 1+3(cpu) EX fans. Case being Lian li evo O11D XL so there is no dedicated RAM fans (My cooler is Arctic Freezer III Pro 360 which has a small RAM fan that can roughly reduce the left RAM by 1-2c).
RAM stats is:
F5-6400J3239F48GX2-TR5S
Trident Z5 Royal
DDR5-6400 CL32-39-39-102 1.35V
96GB (2x48GB)
Because it's an XMP set, and it seems like it won't POST after I turned on XMP profile during a very initial setup. So I didn't bother to try it again. So my current process is:
-
set to MSI's Memory Try It! preset for 6400 32-40-40-104*
-
update to FCLK 2133 and set 1:1.
3.1 Adjust the primaries to be the same as the product stats, 32-39-39-102.
3.2 Tried tRFC 500, tREFI 50000 as suggested in other post, won't POST.
3.3 Able to POST with 600, 32767
-
VSOC set to 1.25V
-
I tried using 1.35V for VDD, VDDQ, VDDIO, but it failed Y-Cruncher at 3rd round.
-
Revert back to 1.4V (default for Memory Try It! preset), Y-Cruncher failed after 2h. While running the test, ram temp is ~60. I did turn on 80% case fan speed to maximize the air flow possible.
My goal is to reduce latency from 79.5ns while keep 6400 if possible. With 600, 32767, I'm able to get it down to ~69ns, which I'm happy with, but it failed Y-Cruncher after 2h so I don't know what setting I can further adjust.
Thanks in advance….