your primary timings are very agressive tbh, changing any others in the bios will lead to instability or no post, i run mine at the out of box cl14,15,15,15,35 and trc is set to 55 vs stock of mid 80's, command rate is set to T1 but i managed to get them to 3733mhz, if i try anything more my stystem refuses to post, if i took out a set and just ran 2 sticks i may be able to push more but i'd loose 16gb, for me thats too low, gaming at 4k with a few tabs open i can see around 14-15gb usage, hence i use 4 sticks 32gb total.
i altered my tRFC and tFRC (alt) to 325 and 313 from stock which was close to 600+ any lower and above my system refuses to post