System Board - HP ProBook 4445s Maintenance And Service Manual

4. Lift the speaker (3) from the computer.
Reverse this procedure to install the speaker.

System board

NOTE: All system board spare part kits include replacement thermal material.
Description
System boards for use in models without Windows 8:
Shared video memory with UMA graphics
2-GB of discrete graphics memory
1-GB of discrete graphics memory
System boards for use in Windows 8 models:
Windows 8 Standard models with shared video memory with UMA graphics
Windows 8 Professional models with shared video memory with UMA graphics
Windows 8 Standard models with 2-GB of discrete graphics memory
Windows 8 Professional models with 2-GB of discrete graphics memory
Windows 8 Standard models with 1-GB of discrete graphics memory
Windows 8 Professional models with 1-GB of discrete graphics memory
66 Chapter 4 Removal and replacement procedures
Spare part number
683600-001
683599-001
683598-001
683600-501
683600-601
683599-501
683599-601
683598-501
683598-601