5–70 Maintenance and Service Guide
Removal and Replacement Procedures
5.22 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:
■ RTC battery (Section 5.5)
■ Memory modules (Section 5.7)
■ Mini Card module (Section 5.8)
■ Modem module (Section 5.16)
■ ExpressCard assembly (Section 5.24)
■ Fan/heat sink assembly (Section 5.25)
■ Processor (Section 5.26)
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
❏ Hard drive (Section 5.4)
❏ Optical drive (Section 5.9)
❏ Keyboard (Section 5.10)
❏ Switch cover (Section 5.11)
System Board Spare Part Number Information
For use only with computer models using Intel processors:
■ PM/G72M-V for use with full-featured computer models
■ GM for use with full-featured computer models
■ GMZ for use with defeatured computer models
■ PM/G72M-Z system board
■ GM system board
417035-001
417036-001
417037-001
440777-001
440778-001
For use only with computer models using AMD processors:
■ For use with full-featured computer models
■ For use with defeatured computer models
431483-001
431844-001
