Removal and replacement procedures
Maintenance and Service Guide 4–49
When replacing the system board, be sure that the following additional components are removed from the defective
system board and installed on the replacement system board:
■Fan/heat sink assembly (see “Heat sink/fan assembly or heat sink” on page 4-52)
■Processor (see “Processor” on page 4-57)
Remove the system board:
1. Turn the computer display-side up.
2. Position the computer with the right side toward you.
3. Disconnect the following cables from the system board:
1 Modem cable
2 Audio board cable
3 USB board cable
4 Fan cable