5.21 System Board
System boards
Includes 64-MB discrete video memory
Includes 32-MB discrete video memory
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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:
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Maintenance and Service Guide
Spare Part Number Information
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)
Removal and Replacement Procedures
346885-001
344401-001
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