5–52 Maintenance and Service Guide
Removal and Replacement Procedures
5.23 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 (refer to Section 5.5)
■ Bluetooth wireless communications board (refer to
Section 5.7)
■ Modem board (refer to Section 5.10)
■ Memory expansion boards (refer to Section 5.11)
■ Processor (refer to Section 5.17)
■ RTC battery (refer to Section 5.20)
■ Button board (refer to Section 5.22)
1. Prepare the notebook for disassembly (refer to Section 5.3)
and remove the following components:
❏ MultiBay device (refer to Section 5.6)
❏ Keyboard (refer to Section 5.9)
❏ Memory shield (refer to Section 5.11)
❏ Switch cover (refer to Section 5.12)
❏ Keyboard plate (refer to Section 5.13)
❏ Fan assembly (refer to Section 5.15)
❏ Heat sink (refer to Section 5.16)
❏ Display assembly (refer to Section 5.18)
❏ Top cover (refer to Section 5.19)
Spare Part Number Information
System boards
Includes 64-MB discrete video memory
Includes 32-MB discrete video memory
346885-001
344401-001
