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System Unit Repair 5-13
System Board Removal
Remove the system board per Figure 5-15 and the following steps.
1.
Remove the following components as previously described.
system unit cover
expansion slot boards
PCI/ISA backboard
3 1/2-inch drive bracket
secondary cache module installed on the system board
SIMMs installed on the system board
NOTE:
Remove the optional video DRAM
chips if installed, see Section 3, Options.
2.
Remove and label all cables connected to the system board Figure 5-15 provides
the general locations of the connectors for the system board. Appendix A
provides the pin assignments for each connector.
3.
Remove the seven screws that hold the system board to the system unit chassis
(see Figure 5-15). Remove the system board out the side of the system unit.
Figure 5-15 System Board Connectors and Screws
1 of 7
Screws