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5–62 Maintenance and Service Guide
Removal and Replacement Procedures
5.18 System Board
✎
When replacing the system board, ensure that the following
components are removed from the defective system board and
installed on the replacement system board:
■ Memory module (Section 5.7)
■ Mini PCI communications module (Section 5.8)
■ RTC battery (Section 5.9)
■ Processor (Section 5.11)
■ Modem board (Section 5.17)
■ PC Card assembly (Section 5.19)
■ Fan assembly (Section 5.20)
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a. Hard drive (Section 5.4)
b. Optical drive (Section 5.6)
c. Heat sink (Section 5.10)
System Board Spare Part Number Information
For use with HP Pavilion dv4200 and Compaq Presario V4200 models
915GML 403894-001
915PM/M25P128 403895-001
For use with HP Compaq nx7220 models
915GML 403213-001