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System Board
Removal
1. Remove the cover as described in “Removing the Cover” on page 7-3.
2. Remove the adapters as described in “Adapter” on page 7-25.
3. Remove the riser card support bracket as described in “Riser Card Support
Bracket” on page 7-10.
4. Remove the riser card as described in “Riser Card” on page 7-11.
5. Remove the memory cards as described in “Memory Modules” on page 7-26.
6. Disconnect the power supply cables from the system board connectors. Label
each cable, identifying where it connects.
7. Remove the mounting screws from the system board.
8. Lift the system board up and out of the chassis, as shown in the following
illustration:
Replacement
Replace in reverse order.
7-12 7046 Model B50 Service Guide