INSPIRON 3521

Notebook boards don't have separate model numbers - it's an Inspiron 3521 board.  The Dell part number is on the board near the memory sockets (it'll start with DP/N or CN).

sorry,for the late ,(i lost a good friend with covid19)

you asked me about service tag ,it is

i found  on the internet many motherboards for inspiron 3521,with some different specification

my laptop inspiron 3521 (intel corei3) .but  some others are core i5 or i7

so ,do you think i can use one with i5 or i7?

thanks(sorry again,and stay safe)

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