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5–50 Maintenance and Service Guide
Removal and Replacement Procedures
5.16 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 modules (Section 5.6)
■ Mini PCI communications module (Section 5.7)
■ RTC battery (Section 5.8)
■ Speaker (Section 5.20)
■ Heat sink (Section 5.21)
■ Processor (Section 5.22)
■ Fan assembly (Section 5.23)
■ PC Card assembly (Section 5.24)
1. Prepare the computer for disassembly (Section 5.3),
and then remove the following components:
a. Hard drive (Section 5.4)
b. Memory/Mini PCI module compartment cover
(Section 5.6)
c. Optical drive (Section 5.9)
d. Switch cover (Section 5.10)
e. Keyboard assembly frame (Section 5.11)
f. Display assembly (Section 5.14)
g. Top cover (Section 5.15)
System Board Spare Part Number Information
System board 403790-001