So this is where i'm at so far, the fclk can't push higher and especially with this voltage wall I prob can't push ram to 4400mhz or more to maybe make going above 3800mhz worth going desycning fclk. however it seems like the dimms have a type of voltage wall.
even if i loosen trfc by alot and even other timings, pushing the dimms to like 1.52 or more will cause instability on it's own. the dimms don't go above 39c with a fan on them after stress testing for as long as i want. the instability happens pretty quick on a stability test, at best a few minutes but sometimes seconds. unless the voltage is so high the chips are heating up rapidly or hotspotting and the temp sensors don't catch it, maybe a repaste could help? it just seems odd that it's like right on the line where just a touch more voltage suddenly pushes them over especially considering loosening timings and trfc.
maybe it's the dimm pcb not being super high end? i just know b-die should scale with voltage, and this kit does but only to this point.
there can be settings that are loose and stable but become unstable just due to voltage increase alone. i've screwed around with the vsoc, vddp, and vddg voltages plus clkdrvstr and stuff.
no i haven't isolated which dimm if it's just one because realistically all 4 will be ran, however maybe there could be a purpose to that or matching certain dimms to certain slots? idk
it would be nice to be able to tighten primaries further but again is it possible these were just a poor bin for voltage scaling? they are g-skill ares 3600cl16, and with tightening timings to 14, trcdrd can't do 14, so i get why they couldn't make the cl14 bin haha. i was just hoping to get cl12 or something, or see what they are like at a high frequency that could make it worth it if that was an option.
furthermore i tested with a ryzen 5500 which has a stronger imc and same issue, it seems independent of cpu imc.
any ideas? thank you