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Removal and Replacement Procedures
Maintenance and Service Guide 5–57
5.19 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)
■ RTC battery (Section 5.7)
■ Mini Card module (Section 5.8)
■ Bluetooth module (Section 5.16)
■ ExpressCard assembly (Section 5.17)
■ Fan/heat sink assembly (Section 5.20)
■ Processor (Section 5.21)
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
❏ Hard drive (Section 5.4)
❏ Optical drive (Section 5.9)
❏ Switch cover (Section 5.10)
❏ Keyboard (Section 5.11)
❏ Display assembly (Section 5.13)
❏ Top cover (Section 5.14)
System Board Spare Part Number Information
945GM - For use only with full-featured computer models using
Intel processors
940GML - For use only with defeatured computer models using
Intel processors
943GM - For use only with defeatured computer models
945PM - EMEA (Germany) only
434725-001
434726-001
444479-001
441677-001
For use only with full-featured computer models using
AMD processors
For use only with defeatured computer models using
AMD processors
431364-001
431365-001