Figuring out G.Skill's SNs

[websmile]

I had 2000 c9 trident with blue pcb(0650)and 2133 quad kit with green(0640) - the blue 2000c9 as well as the "normal" 2133 clocked like bbse... needed lots of voltage but had trcd limits that were above average, 2133 7-9-7-21 went on all at around 1,65v, 2250 needed around 1,72v on extra tight subs on sb - on cold went way above 1250 7-9-7 and 8-9-7 on later owner who used them on LN2 for benching. BDSE might be an educated guess, but never saw these ics do well, 2133 was nearly always no go for bdse at trcd9.
@stunned guy - oem elpida with bbse use blue pcb... - and 0650 on old gskill sns is elpida as you know