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Removing and Replacing Components
Backplane Board
1. Remove the midplane board.
2. Remove the knurled thumbscrew on the backplane board (1).
3. Tilt the lower portion of the backplane board upward and lift the board out of the
enclosure (2).
To install a backplane board:
1. Position the board against the chassis so that the three rounded prongs on the chassis
engage with the corresponding holes in the board.
2. Tighten the thumbscrew.
Ribbon Cable
To remove the ribbon cable, hold the cable connector and pull it directly out of the socket.
When replacing the cable, note that the connector is keyed so that it can fit in the socket in
only one orientation.
HP StorageWorks Modular Smart Array 20 Maintenance and Service Guide 3-9