HP ProBook 4545s Notebook PC Maintenance and Service Guide

4. Lift the board and cable 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
Systems boards for use in models without Windows 8:
1-GB of discrete memory 683598-001
2-GB of discrete memory 683599-001
Shared video memory with UMA graphics 683600-001
Systems boards for use in Windows 8 models:
1-GB of discrete memory 683598-501
1-GB of discrete memory 683598-601
2-GB of discrete memory 683599-501
2-GB of discrete memory 683599-601
Shared video memory UMA graphics 683600-501
Shared video memory with UMA graphics 683600-601
70 Chapter 4 Removal and replacement procedures