ok so. i bought 7600 ram that actually ended up making my cpu unstable (would create errors with large avx2 occt test) so after a buch of tinkering and trying to get it stable i decided to say fuck it. i am defeated that because i have a 4xdimm motherboard either the motherboard or my cpu IMC just does not like anything going 7400 or over.
so i decided im going to return the RAM and get 7200. (tested at that speed and no errors or anything)
my question is, theres 2 RAM i have my eyes on.
theres g.skill 7200 34-45-45-115. but then there is teamgroup 7200 that technically have tighter timings at 34-42-42-84. but i never used nor heard of teamgroup. but i also never really heard bad things about them either. need some opinions on this. they are around the same price. both RAM are on QVL list.
4 dimms are only guaranteed to run at 4000mhz for 13900k. You can try 5600mhz, some reviewers said they can get it stable at that speed for 4dimms.