5–56 Maintenance and Service Guide
Removal and Replacement Procedures
5.22 System Board
✎
All system board spares kits include a disk cell RTC battery.
✎
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 5.7)
■ Mini PCI communications module (Section 5.8)
■ Heat sink (Section 5.15)
■ Processor (Section 5.17)
System Board Spare Part Number Information
855, for use on full-featured models with Intel Pentium M
processors (includes a disk cell RTC battery)
381062-001
855GM, for use on full-featured models with Intel Pentium M
processors
373522-001
852GM, for use on defeatured models with Intel Celeron M
processors
373523-001
PC Card assembly 389525-001
