Specifications

5–54 Maintenance and Service Guide
Removal and Replacement Procedures
5.22 System Board
✎
When replacing the system board, ensure that the following
components are removed from the old system board and installed
on the new system board:
■ Memory expansion boards (Section 5.5)
■ Mini PCI communications board (Section 5.6)
■ Disk cell RTC battery (Section 5.7)
■ Processor (Section 5.12)
■ Modem cable (Section 5.23)
1. Prepare the computer for disassembly (Section 5.3) and
remove the following components:
a. LED cover (Section 5.9)
b. Keyboard (Section 5.10)
c. Heat spreader (Section 5.11)
d. Display (Section 5.13)
e. Palm rest (Section 5.14)
f. Charger board and shield (Section 5.18)
System Board
Spare Part Number Information
For use only with notebook models using 45W processors*
For use only with notebook models using non-45W
processors*
309638-001
291588-001
*refer to Section 5.12, “Processor,” for a listing of 45W and non-45W
processors and spare part numbers
272638-002.book Page 54 Wednesday, November 27, 2002 4:52 PM