i didn't set 1T... it was there by SPD and I never touched it. I think I tried every usable cas latencies but always failed with higher voltage.

So far I'm doing 41minutes of memtest 1600mhz 8-8-8-24 2T 1.92v. It was definitely the command rate.

lol how absurd is that? 1T failing with higher voltages? shouldn't be the other way around? Boy things have changed since my overcloker days back in sdr and ddr1 times...