Dell Inspiron 15R (N5110, Early 2011) - Manual (Page 66)

66 System Board
10 Disconnect the speaker cable from the connector on the system board.
11 Remove the five screws that secure the system board to the computer base.
12 Lift the system board assembly to disconnect the connector on the system
board from the connector on the I/O board.
13 Turn the system board assembly over.
14 Follow the instructions from step 3 to step 5 in "Removing the Hard Drive"
on page 71.
15 Remove the thermal cooling assembly (see "Removing the
Thermal-Cooling Assembly" on page 75).
16 Remove the processor module (see "Removing the Processor Module" on
page 79).
1 screws (5) 2 system board
3 speakers cable connector
1
2
3