5 system board 6 microphone module
7 coin-cell battery 8 middle frame
9 processor heat-sink 10 processor
11 memory module 12 wireless-card shield
13 solid-state drive (M.2) 14 I/O board
15 speakers (2) 16 memory fan
17 I/O panel 18 camera
19 USB dongle-port 20 display built-in self test button
board
21 power-button board
18