who can help me pls,my lenovo 510s after add 16gb ram can't open laptop, just black screen
when i plug in back old ram also can't open,i try to plug out cmos battery and plug out battery also can't,
an i try hold 120 sec on off button also can't , just power light on only
when i plug in back old ram also can't open,i try to plug out cmos battery and plug out battery also can't,
an i try hold 120 sec on off button also can't , just power light on only