One 8 x SAS/SATA backplane
This section provides cable routing information for the server model with one 8 x 2.5-inch SAS/SATA front
drive backplane.
To connect power cables for the front backplane(s), refer to “Backplanes: server models with 2.5-inch front
drive bays” on page 163
.
To connect signal cables for the backplane(s), refer to the following cable routing scenarios depending on
your server configuration.
• “Onboard connectors” on page 166
• “8i/16i RAID/HBA adapter” on page 167
Onboard connectors
The following shows the cable connections for the 8 x 2.5-inch SAS/SATA configuration with onboard
connectors.
Connections between connectors:
1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n
166 ThinkSystem SR655 V3 User Guide