Removal and Replacement Procedures
Maintenance and Service Guide 5–47
5.21 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:
■ Mini PCI communications board (Section 5.5)
■ Bluetooth wireless communications board (Section 5.7)
■ Modem board (Section 5.9)
■ Memory expansion boards (Section 5.10)
■ Processor (Section 5.15)
■ RTC battery (Section 5.18)
■ Bottom board (Section 5.20)
1. Prepare the notebook for disassembly (Section 5.3) and
remove the following components:
❏ MultiBay device (Section 5.6)
❏ Keyboard (Section 5.8)
❏ Memory shield (Section 5.10)
❏ Switch cover (Section 5.11)
❏ Keyboard plate (Section 5.12)
❏ Fan assembly (Section 5.13)
❏ Heat sink (Section 5.14)
❏ Display assembly (Section 5.16)
❏ Top cover (Section 5.17)
❏ LED board (Section 5.19)
❏ Bottom board (Section 5.20)
Spare Part Number Information
System boards
Includes 64-MB discrete video memory
Includes 32-MB discrete video memory
346885-001
344401-001
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