seem the owner of this use Pc got the "Memory RAM Modules" who was being cheap about and just crap them up from a spare part bucket left over from other Pc what was work on. mis-match basic, all four of them Memory RAM Modules cards have basic same lapel on them, only 1 did't look same as the others three hardware wise, has more mirco-chips to it then the others
it my now days
like replace them with match set to the MOB, but i don't have a clue what that be.
MOB Memory RAM Modules be, i no id about that part, now clue about that at all
CPUID cpu_z link: https://valid.x86.fr/re1lq0