5.
Lift the board straight up out of the computer (4)
Reverse this procedure to install the USB board.
System board
NOTE: All system board spare part kits include replacement thermal material.
Description Spare part number
System board for use in all countries and regions except Russia and the People's
Republic of China:
For use in UMA models with USB 3.0 and WWAN 646325-001
For use UMA models with USB 3.0 and without WWAN 646326-001
For use in UMA models with USB 2.0 and WWAN 658332-001
For use in UMA models with USB 2.0 and without WWAN 658333-001
For use in discrete models with 512-MB graphics memory 658334-001
For use in discrete models with 1-GB graphics memory 658335-001
System board for use in only Russia and the People's Republic of China:
For use in UMA models and WWAN 655567-001
For use in UMA models without WWAN 655568-001
Component replacement procedures
93