Acer Chromebook R13 CB5-312T Quanta ZSE Block Diagram (MTK MT8173 SOC + LPDDR3) acer chromebook r13 cb5-312t mainboard: DA0ZSEMB6E0 REV.E DA0R13MB6E1 KSO3=18 KSI4=5 KSI7=2 KSI6=3 KSI5=6