System Board - HP ProBook 4430s Maintenance And Service Manual

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
System boards for use in all countries and regions except for Russia and the
People's Republic of China:
For use in UMA models with WWAN
For use UMA models without WWAN
System boards for use in only in Russia and the People's Republic of China:
For use in UMA models with WWAN
For use UMA models without WWAN
90 Chapter 4 Removal and replacement procedures
Spare part number
646325-001
646326-001
655567-001
655568-001