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5–74 Maintenance and Service Guide
Removal and Replacement Procedures
5.24 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 5.18)
■ ExpressCard assembly (Section 5.20)
■ Optical drive connector module (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)
❏ Switch cover (Section 5.10)
❏ Keyboard (Section 5.11)
❏ Speaker assembly (Section 5.12)
❏ Display assembly (Section 5.14)
System Board Spare Part Number Information
For use with only computer models using Intel processors:
G73 (includes 512-MB of video RAM)
G73M (includes 256-MB of video RAM)
434660-001
434659-001
For use only with UMA computer models using AMD processors
For use only with discrete computer models using
AMD processors
436450-001
432945-001