I’m hoping for some advice on getting to 6400 cl26. Timings and voltages for my current 6200 cl26 setup are in the screenshots along with an AIDA64 benchmark. I’d also appreciate any tips for improving my current timings. I’m happy with the performance but I enjoy tinkering.

As for getting to 6400 cl26 I’ve tried a number of things; reducing fclk to 2133 and 2000, reducing bclk to 100, increasing cas to 28, loosening timings (like back to stock w/out expo), increasing VDD to 1.6, reducing nitro to 2/3/1 and probably more adjustments that I’m forgetting. Everything I’ve tried so far hasn’t worked and doesn’t even boot. It’ll spend a long time in memory training (code 15) then eventually seems to stall out with a bios code of 36, 00, or 0d.

Perhaps my CPU and/or RAM just can’t handle 6400 cl26 but I don’t want to give up quite yet. Thanks!

CPU: 9800x3d
RAM: g.skill 2×32 6000 cl26
Mobo: Asrock x870e Taichi Lite