MSI CX61 - Remove USB Board; Remove Main Board

CX61/CR61 (MS-16GB)Disassembly Guide
7、LOWER CASE ASSY
7.1 Remove the 3screws (M2.5*4mm).then
remove the USB board.
Attention: the screw driver torque is 2.0-2.5Kgf-cm
Component P/N Qty
screw E43-1254001-H29 3
USB board 607-16GBB-A10 1
7.2 ： Remove the 3 screws (M2.5*4mm).then
remove the main board.
Attention: the screw driver torque is 2.0-2.5Kgf-cm
Component P/N Qty
screw E43-1254001-H29 3
Main board 607-16GB1-A10 1