b. palmrest
c. base cover
d. hard drive
e. keyboard
f. battery
g. battery cover
h. SD card
3. Follow the procedure in After working inside your computer.
System board
Removing the system board
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. SD card
b. battery cover
c. battery
d. hard drive
e. hard drive interposer board
f. keyboard
g. base cover
h. primary memory
i. secondary memory
j. WLAN card
k. WWAN card
l. M.2 SSD card
m. SIM card
n. palmrest
o. heat sink assembly
p. graphic card
3. To disconnect the system board:
a. Disconnect the power connector cable and battery cable from the connectors on the system board [1, 2].
Removing and installing components
79