IBM System x3550 M3 Type 4254 Installation And User Manual page 92

6. Align the SAS RAID riser-card assembly keys correctly with the connector on
7. Route the signal cables from the drive backplane over the blue adapter
8. Connect the signal cables to the SAS/SATA adapter:
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IBM System x3550 M3 Types 4254 and 7944: Installation and User's Guide
the system board and press down on the assembly until it is seated firmly into
the connector on the system board.
retention bracket.
v ServeRAID-BR10il v2 adapter: Take the signal cable that is attached to the
drive backplane for drive bays 0 through 3 and connect it to the SAS/SATA
connector on the ServeRAID adapter.